Ep9: Sustainable AI Data Centers for a Carbon-Free Future
51m 4s
Susanna Cass, a leading sustainability advocate in the data center industry, emphasizes a transformative shift from net zero to absolute zero, where data centers generate clean energy on-site in real time rather than relying on offsets. She outlines five pillars of carbon neutrality—clean energy, efficiency, emission capture, zero waste, and zero water use—all rooted in a circular economy that replaces linear, resource-depleting models. Her work highlights how data centers, especially those powered by AI, can drive environmental and social progress through innovation and responsible design. She stresses the urgency of youth engagement, gender diversity, and leadership mindset changes to align with the UN Sustainable Development Goals. Case studies from global projects, including a zero-generator, 90MW London data center, demonstrate feasibility and efficiency. She notes that while the U.S. faces environmental setbacks, nations like Sweden lead through systemic sustainability. Ultimately, sustainable digital infrastructure is not just environmentally sound but economically viable, with capital trends favoring compact, efficient, and AI-integrated facilities. As she envisions, future data centers will be operated by younger, inclusive teams, with metrics showing a median age of just 23, built with zero-carbon, non-flammable materials—proving that sustainability and innovation are not only possible, but essential for the future.
This is uptime now, a Norton Rose Fulbright podcast dedicated to conversations about data
centers.
From development and construction to cutting-edge technology and operational breakthroughs
and the people driving it all.
Joining us today is Susanna Cass, Senior Data Center Advisor to UNSTG, Operating Partner
of Digital Gravity Infrastructure Partners, Senior Advisor for AI Data Centers at Stulls,
Co-Founder of InfraPrime and a Senior Advisor to the Board of Caretis Group.
She is a 2026 Global 100 Game Changer.
She has ranked Top 5 Data Center Global Leader within video, AMD, AWS, and Digital Realty.
A Top 5 MSN Most Inspiring Leader, Top 10 Data Center Women in Data Centers, Top 10 Sustainability
Leader, a Top 10 Data Center linked in Data Center Influencer, and a Climate Change Trailblazer
for over two decades.
And to top it all off, she is an Amazon Best Seller author on Sustainability and Responsible
Growth for Data Centers in the AI Era.
Susanna, welcome to the show.
Thank you, Samir.
Thank you so much for having me today.
It is absolutely a pleasure.
It's great to have you, you know, saying all those things about you, which are all true.
I imagine I'm just thinking about the amount of time and effort it goes into doing these
things, great things that you've done, where do you find free time?
My free time is actually inside a data center.
That makes sense.
Yes.
Well, you spent more than three decades in the pursuit of climate positive results for
planet, people, and profit, and the tech and data center sectors.
Why is this climate and sustainability piece important to you?
And can we support all the massive data center growth we're seeing unfold around the world
in a sustainable way?
Well, first of all, I want to thank you, Samir, today, and actually all your colleagues
putting together this wonderful platform.
So you can actually amplify a lot of the work that many leaders in this space have worked
really hard for.
So personally, for me, Samir, throughout my journey as a data center innovator, I have
fought for what I believe in and what the UN SDG sustainable development goes environmental
programs stands for, which is a carbon-free future in not just a next generation, but in
our current generation is a paramount importance.
As the planet itself is actually quite resilient, humans are actually the one that are ignoring
the consequences of our own actions to pursue growth in our own way by rapidly depleting
this natural ecosystems in a linear economy model, which means we grab the resources, we
use them and we toss out what we don't need.
Well, that is not sustainable in any imagination.
Authentic leadership that we are in our role today must act now with ethical values more
than just our own needs to serve as a P&L statement because there's a social cost of ownership.
So in the use of technology advancement, which is the joy that I have and this platform
I have for all the, you say, the work that I do, but if you actually having fun, I don't
actually see that as work, which is creating clean energy generation, being an inventor,
and also this cannot be more an opportunity for your platform to amplify the key message
because it is with the growth of AI, which I'm sure we're probably going to go into it
later, we can harness the new value creation without official intelligence, just like this
week at Nvidia GTC 26 in San Jose, 30,000 of us gathered together to celebrate, to discuss
the transition of AI using the technology towards myself in clean energy and carbon free economy.
But it's more than just the energy resources to me, it's really relating to grid modernization
to pave the way for future generations of people that come behind us and we don't even
know them today, but the impact of our work will lead ways to make each moment accountable
for what comes behind us and have yet to actually dream of what they're going to be doing.
So we need to ensure they always have the choices, they also have the choices that we can
make today and we should not do anything that basically eliminated those choices, especially
the precious mineral.
So for our industry, the way forward is very clear and that's why I'm actually committed
in just talking.
Yeah, tell us a little bit about absolute zero and how it differs from net zero, because
I think most people are familiar with net zero and think about net zero, at least in the
industry that I'm in and the work that we do in terms of offsets and the like, I don't
think as many people are aware of what absolute zero means.
Of course, of course.
So let me give a little bit backdrop for your audience for some of them will not be even
familiar with why we even care to actually have this accounting and metrics.
So in the data center world, which you may think is foreign, but you shouldn't be because
anytime that we're actually listening to a podcast, recording a podcast or we play with
educate, we entertain, or we actually do things using government services and whatnot.
We are interacting with a data center in some way shape or form because you either using
the compute, you're using the data storage and you being authenticated somehow and all
of that is actually utilizing either the internet or a high speed connectivity or some kind
of transport medium.
So all of that only makes sense can be happening and we realize that when it didn't happen,
which is around energy, you notice, like, oh my god, what happened?
You know, when I have a power failure and something is not working, you're not working
because it's not fast enough for you or it's just basically a blackout.
Okay.
So power is critical to all aspects of the data center.
So the answer to your question, Samia, is the following.
So I would say about a year and a half, a decade and a half ago, we start doing the accounting
at the end of the year.
So we say, okay, what have we used per annum in terms of this resources called energy?
And then later on, we track other resources such as water and so on.
But let's focus on energy.
So next year, oh, it's an accounting method on saying that, hey, I have used that much
unit of energy for my entire year in my data center and also in the use of building because
most of our hyperscator have, I would say, 90% of the energy consumption is in data center
and the remaining of it all, which is pretty important because we have, you know, big use
of building headquartered in supply, manufacturing sites and whatnot.
But effectively, they're like rounding errors.
Okay.
So we each of them account for the total consumption of energy.
And when they present the report, they say, aha, using your term, I offset it by buying
that much new energy, hence it created a market for renewable energy, power purchase agreement.
And so it is an accounting offset and hence the word net zero.
But what I felt is important is a following.
I felt that we need to be more bold.
We need to take more action and we need to raise our ambition in the standard.
So doing an offset is not good enough.
It's not like, hey, I want to be healthy some year.
But I'm only going to work out six hours every day for three months.
Well, what about the rest of the other time period, right?
It's on that part.
So I felt it is more important to come up with a new design called absolute zero where we
should be measuring how often we work out.
We should be measuring hour by hour consumption for each of the data center by application.
Okay.
And we not just do the offset, but we genuinely provide on premise clean energy generation.
So we are using the clean energy hour by hour instead of doing whatever the heck that
we still do all habits and then we just do the offset.
So that's the primary difference between net zero, which is very important.
Don't get me wrong.
It's great to have a baseline and account for the net zero and a corporate report.
But it's actually more important to make the happens to get into the habits of doing what
is right in the first place, which is per kilowatt per energy hour by hour.
We are going to basically use energy and then we measure the greenhouse gas reduction by
tonnage, but not wait till the end of the year.
This is a relatively new thought.
You've led, you know, four plus kilowatts of data center and clean energy projects around
the globe, 20 countries or so from your vantage point, are there certain countries that have
figured it out and that are easier to build from a sustainability perspective or that
of, you know, are thinking more about absolute zero versus net zero.
Well, very good question.
I learned a lot by actually visiting the actual size around a country, right?
I would say absolutely yes.
What started to be a renewable energy, power, participant effort has turned out into be
more meeting with people that is basically the lifestyle.
So they're not just by doing contractual revenue, contractual offset.
I would give a few examples and most of them actually is in the countries that are so
surprised to you or the audience, the Nordic countries have the backdrop of the hydro,
right?
So therefore is a lot easier for them because they have a lot of export, they have been
getting in a habit of exporting the access clean energy anyway because of the wonderful
location that they actually have in terms of the hydro.
Sweden is a country, however, is very small.
country, but it's been committed to circular economy to basically do reused recycle, regenerate
from heatways and using clean energy. So as more habitual country that has the support
of the prime minister, the king and the queen in terms of, hey, we as a country need to embrace
that as a lifestyle. So sincerely it's actually very helpful. They don't actually don't even
have the three color bins that any of the countries have, because it's just kind of part of the
lifestyle. You actually doing that, you're already doing it, right? Okay. So I would say the US is one
country under the current administration that has withdrawn from the commitment, from the Paris
agreement. So that's, you know, world news. And there is an index, which is global, called
environmental performance index, EPI, and it basically measured the environmental health, such as air
quality, sanitation of drinking water, ecosystem vitality, such as biodiversity, what are the habitat
of the special species that need to be protected. So we don't have extinction for a station, for example,
efforts and specifically climate change mitigation for some of the gas that has been identified for them,
specifically, well known, of course, is cop and down size CO2 or CH4 or N2O. Basically, those are the
gas that are harmful to the environment, even to the human or any living beings for that matter.
So I would say follow good science. US unfortunately is a country that I love a lot that is leading in
data-centered deployment that has dropped out of the top 10 similar of the EPI index. And at the
moment right now is kind of in a free fall in a ranking perspective across all categories that I
just mentioned. So I think it's really important that we, it's never too late to make a change,
it's never too late to embrace something that you think is the right thing to do. So I would say,
you know, let's not do a rowback, let's follow good science, and it's never too late to actually
make a contribution towards the environmental health. After all, we may actually created the
country from a boundary perspective. Those are all artificial, you know, because if you look at it
from, from afar onto earth, there's no boundary. We live in one world.
Right. Yeah. I talk about it outside of the context of the environmental world, just,
you know, in the context of like your, like your, your physical self, you know, with our,
with our colleagues here who, who worked very hard and, you know, just talking about how important it
is to focus as well on your, on your personal and physical health so that you can do this for the
long run. And it's like the exact same thing with the earth, you, you have to, you have to think about
the, the wellbeing of the earth, because it's all we have. I'm curious. I definitely want to talk
to you about the role of the circular economy, a connection with the data center world and,
and the five pillars to carbon neutrality. But before we go there, you've worked with so many of the
top tech and energy and infrastructure companies out there, including eBay, HP, send microsystems,
and Oracle, next era, Google, Microsoft, Facebook, but this kind of goes on and on. I'm curious,
like what's been one of your favorite or most memorable, memorable projects and why?
Well, most memorable, yes, Samir. Favorite? No.
As a mother of two daughters, myself, I love each of my children equally and differently,
because each is unique, you know, and data centers like snowflakes. They all seem to look alike,
but when you look closer, each of them are really differently, and you really need to
design, build, and nurture them, just like we do without children, and you need to communicate
with them, support them, and do things differently because we are the parent. So my clients are the same
way. They're all unique in their own demands, in a data center, including the design, where we put
the sites, the operational discipline, the service level agreement, because it each have
its own ecosystem, because of the location of this physicality, but at the same time, we all work
together and they all link together in a digital fabric. So in a way, it really doesn't matter
what the location is. I'm going to ask you a question. However, I'm going to go answer a question.
My favorite data center is the one that I don't need to build. Okay. The cleanest data center is
not the one powered by renewable energy or clean energy. My favorite one is section to one that we
don't need to build, because it is the cleanest project, because there's no company mission,
no intensity in terms of using bad resources, and I am not depleting any environmental resources.
And the reason why I actually set that is actually not synthetic or virtual, it is actually real.
Data centers are often built with over-professioning of resources. And so we have a lot of capital,
so we will use abundant resources and leave them in an idle state. Now, it's not like we're not
efficient driven. Data centers are very efficient driven. However, the metrics of the data center
is still today for all the three decades plus that I get involved in it and what I learned when
I was before I even joined a sector is measured by uptime performance. So we will take a lot of more
resources. We call them proficienting. We will have all the resources that link to the data center
in the event that may be a great failure in the event of a catastrophic events. And we still need
to make sure that we maintain them, because we wanted to avoid making the headline news, so to speak,
that there's some outage. You get it, right? So in order for us to do that, the over-professioning
is not so much as we grab the resources because we can. It's because they become backup assets.
And they oftentimes stand idle just to support those 0.001 percent incident that will happen because
we have no idea when that's going to happen and they're never used in the operation. So my favorite
you can kind of tell is the one that I don't need to build, but what I can do is I can squeeze
productivity and utilization by harnessing these resources by perhaps designing a data center that
has some recovery failover algorithm that is driven by AI technology or the grid outage mechanism
because we kind of know. And you get it now, right? On how we actually be able to do so, by squeezing
all the one that we already built instead of actually just keep doing the backup resources and
letting them be idle, you know, it just doesn't feel right to you, right? It's kind of a waste of
resources because those resources can be used immediately for other folks. And we can still achieve
the uptime performance. So these resources are not wasted in the lifetime as idle. So hence the
design of what we've done is actually we launched one with a hyper scaler in London of 90 megawatt
with zero what we call generator. So it was fantastic to launch this year to share that in the middle
of London, which is very valuable resources. And we got standing ovation and cheer that we are
ambitious enough and we actually deploy them. What we have done is we still practice the backup,
the recovery, except we use the grid to do it rather than our own resources because we can pay for it.
So that's a good example in that regard. So I have a favorite design, but I'm not sure if I have
a favorite data center is the principle of it all that is favorite that we can still achieve what
we're supposed to do in this time uptime performance and resiliency, but we don't need to be,
we need to be more capital efficient and we need to advance humanity and environmental resources.
Yeah, you mentioned that that project in particular receives its backup power from the grid.
Here in the US, we have a lot of issues interconnecting to the grid and long cues. And as a result of
that, we're seeing a shift to where data centers are going out there and looking for huge behind
the meter power plants. And then back up, you know, behind those power plants, do you think that
the solution here is to create legislation or find ways of fixing the issues with the
interconnection queue and the allowing projects to be able to tap into the grid?
Yes, absolutely. Absolutely. I'm going to give a shout out to one of my clients and I learn a lot
from them when we're collaborating on that, right? That's Google. So Google has made the announcement
just this week, has integrated over one gig of what of energy contracts through what utilities
call it demand response. So for those in the audience, what it basically man is the following,
the grid load are oftentimes text in a hot day, okay? Because everybody kind of like, well, you know,
it's kind of hot. I'm going to go turn on some devices, okay? And use more energy so you can
provide cool air for yourself. So, and the data center is like here coming along. I'm going to
use gigawatts and megawatts at the same time. Well, you know, not everybody need to watch a movie
in a hot day by turning on all 11 channels when you actually, I'm not really watching
them at the same time anyway, okay? So there are things that we can do, actions we can do in terms
of curtailing. And so I hear for Google, for the announcement this week that they have done
to show that over the time, the last decade, they have been successfully integrating with multiple
utility to read.
used energy demand from their own data center during certain hours of the day or time at the
year to actually help balance the system low. I think that's a really good example. So, I mean,
it's constrained in NOVA, it's constrained in PGM, it's constrained in Cal Isle or even in a
free market like the IRCOT, right? And for just to put it in context because Amir, you probably know
I'm a quantitative gal, I'd like to measure everything that we do or else to go as meaningless if it
is not has a unit of measure and you won't be able to be transparent to talk about it so you can
do the comparison. So, your question is extremely important for a simple 0.5% of the year that we
participate in it and data center can absolutely do that because we have all these other backup
stuff, you know, to survive the 0.5% that we can actually abstain from using from the grid, it will
unlock 100 gigawatt of large loads, okay? That new capacity that can be used for other utility
clients such as residential, small commercial and industrial sectors or more importantly first
response folks that really needed to have energy when they actually needed it on demand. So,
you know, just the fact that we actually can streamline and orchestrate our own usage behavior
because we have backup and backup, we can generally do actions to balance the grid. So to me,
this is not a future thing, that's why I used to work now generation. We need to make the decision
now, we need to take the action now in order to do that. So, the technology is here, the only
limitation is actually human in terms of not having an open mindset and take that action. So,
I encourage everyone, all your audience to have an open mindset and really use the technology
and just do things that are really basic, be able to just curtail 0.5% and we're going to gain that
scale. Yeah. Can you talk about the five pillars to carbon neutrality and the role of the circular
economy? Absolutely. Thank you for asking the question. It's actually one of my favorites. So,
mentioned a little bit earlier, the data center when it embraces more circularity thinking instead
of a linear economy thinking, which is grabbing the resources using it and tossing it out in the
industrial sector, create a lot of problems. So, if we start thinking about circularity, which I
would explain in a second, we will be able to achieve carbon neutrality a lot faster and more
effective. The first pillar is actually using clean energy and clean fuel. So, for data center,
we did a math calculation on it and we're absolutely moving in that direction. 75% of all energy
consumed by the hyperscaler. If we operate it on renewable energy and clean energy, effectively
just achieving the carbon neutrality goal and maybe reach 100% by 2030 or 2040, the first pillar
for us to get to a carbon free economy is to utilize and transition to clean energy and clean fuel.
Okay. So, the what not to do is actually use dirty diesel generator. What's not to do is actually
stay on the fossil fuel or co-based as a resource. Now, if you get into a location where the
renewable energy is not possible, then you need to start thinking about one thing is how can I remove
the greenhouse gas that come out from these other resources? Because at the end of the day,
it's not the energy source and it's the evil. It's when you use clean energy and clean fuel,
you don't have GHG. But if you, such as nuclear, but if you use the fossil fuel, you need to have
a mitigation method for you to be able to capture it so you don't just expel it out in the air.
You get it? Okay. The second pillar is energy and resource efficiency. I gave a couple examples
about participant. Okay. Shifting things, orchestrating a different environment. So, we actually will
achieve more de-effectiveness of how we use the power. So, there's metric called usage effectiveness
of power, usage effectiveness for water, and you wanted to get as close to one as possible. So,
if your data center tell you that my usage effectiveness of power is 1.0201.01 such as the case for
meta and Google and Microsoft on the hyper scale, that would be much better than you look at a data
center to come in as a 1.6 because you're a lot more efficient in that regard. And every point 5%
I already mentioned is probably in this scale about 100 gigawatt. So, kind of like do the math,
this is very important in terms of usage efficiency of the resources. The third pillar is,
what I said a little bit earlier, if you have some cases in some location or some time that we're
not in 2030 or 2040 yet and the grid is still not 100% green, we need to figure away how to capture,
how to reuse the emission. So, the more that we actually can remove these gigatons of CO2
from the environment and be able to use it in wonderful agricultural sector because we do need
actually, by the way, CO2 in a beverage industry. For example, that's why you kind of get the bubbles,
right? Or in my case, I invented the system with a couple of my colleagues in Switzerland that we
actually use CO2 as a medium carrier to carry the heat waste. So, instead of using water to carry the
heat waste, turn the chill water into warm water so you can actually take a shower in your gym,
we actually use the CO2 and we carry a lot more in terms of quantity of heat and a lot more
efficient in that regard and then we basically create an underground system of an urban heat system
in Sweden. So, you don't need to have the energy for some people want to actually have a heater.
We basically reuse or regenerate from the heat waste that we got from the data center. So,
the third pillar is, you know, how can you technology to capture and we use this emission in other
sectors such as, you know, give the heat to the strawberry, give the heat to the fishing industry,
keep the heat to the greenhouse instead of using the energy from the grid in order to heat things
out. Does that make sense? Okay. The fourth pillar is a circling economy to reduce the waste
from the site bill and the data center life cycle because we use a lot of resources in the
construction and the last thing we want to do is to have a big landfill. So, the zero landfill is
the goal for the fourth pillar because we are genuinely doing the reuse, regenerate and also
eliminate in terms of the waste during the construction phases and throughout the data center life
cycle. So, heat waste is what we actually are targeting to reduce and more importantly,
we also want to remove the embodied carbon which actually happens in the materials that we
basically use to have also a zero and a low carbon footprint. The last pillar is my favorite,
is to eliminate the use of water completely in the build and the operator data center so we can
actually reach a use effect of the soft water less than 0.05. So, almost we don't use the water.
At the moment right now we have seen some interim solution which is quite good and Google just
actually announced two projects they have in terms of water replenishment. Okay. Which is
really important because in state like Arizona or New Mexico, water is extremely scarce in that
regards, specifically with the sanitation of the drinking water whatnot. So, the fifth pillar
is to eliminate the use of water at all and start thinking about water less data center and then
we will replenish. We also do the offset replenishing. So, these are the five pillars in terms of
reaching, practicing a circular economy concept away from linear and moving us towards a carbon free
economy. So, my question about all this is how do you incentivize these hyper-scalers and
data center developers to care about these things and to invest in these things? I mean, on the
one hand we're seeing large operators like Microsoft and Google come out and say that they want
to be energy partners rather than energy problems. They want to help produce a cost of electricity.
You're seeing one announcement after another about, for example, Google's acquisition
of a renewable energy developer. So, they're clearly doing some of this already on their own.
Part of it is I'm sure in response to this growing like NIMBY or not in my backyard movement.
But, you know, what are your thoughts on how we can incentivize these developers and
hyper-scalers to incorporate everything that you're talking about with these five pillars?
Yeah. So, it's a growth mindset. It's actually we are light-minded people in that regard.
It's to all of us basically have a growth mindset that we bias towards action
in a circularity thinking and we all get together to basically look at the issues or the problems
as an evidence.
framework. By actually having these three tools, a growth mindset, a circularity thinking
with the light-minded people, and all of us are following good science and focus on
evidence instead of just an opinion, an idea that people have, we would kind of like invite
those people not to be in our meeting. Sincerely guide organizations and leaders in the pursuit
of a circular thinking, not a linear growth thought, and not limited to just a quarter to
quarter KPI goals. The impact of a lot of these reuse comes easy, Samia, for a trial or
youth. Someone much younger than you, someone much much younger than me, and not to try to
really teach in a doubt like how to use the bin, you know, and you see that some of them
they stand in front of this color bin, and they have like no idea what the word compost
means, okay? It's like, it's really like really, okay? But not to, not to, you know, make
fun of anyone, it's not my goal is the thought of actually, I care about how the planet
is or what life is 50 years from now. Come yeas here for younger generation folks, because
that's when they actually peak. And for many of the leaders in their organization, they
don't even, you know, it doesn't come easy for many of us because we may not be around,
we probably won't be around, I guarantee you, I'm not around 50 years from today. And
so with that, the thinking in our daily life, because of the fact that it's just not within
our time frame. So my suggestion, be able to do change management and whatnot. I, you
know, and a couple of us teach those classes in Stanford University, right? About change
management. It's not, it is really focusing on the literacy and who might be, what might
be the group that basically cost the momentum and be able to show the facts. So hiring a young
talent with an innate ability to think and live sustainability is key in any groups. That's
why I'm the fan and I'm the co-founder of Kapo talent and tech initiatives, including
the UNU for AI Summit now, which we now have 1500 youths in there and no surprise. A lot
of them are girls just to kind of balance out the other goal with the standard equality.
I would say invite people to actually have more dialogue. We'll go from there. Importantly,
actually, you know, with all these nice words aside, the brand of actually be able to
do sustainable is extremely important. Okay. Because if light mind that you're going
to attract light-minded customers, light-minded supplier. So for many of the companies who,
you know, I don't want to list too many names because I don't want to get in trouble for
not listing their names on your broadcast. But I would say majority of all the folks that
basically in AI, majority of all the consumer devices company and whatnot, the brand of
being sustainable, they care beyond their own quarter to quarter performance for the environment
is extremely important to them. If nothing else, that is actually the goodwill multiplier
you get when you're actually doing a corporate transaction, not necessarily just your revenue
metrics. So, well, you know where you're going to focus, right? You actually, Samir,
can move the world. All you have to do is actually have a stake long enough and you know
where the lever is. And I would say sustainability, care about the environment, as a company you
stand for. Those principles, it's extremely important because that's why you're going to attract
innovators, you're going to attract customers, you're going to attract people who want to work
for your company and be part of your ecosystem. And they will vote by not buying your product
otherwise. Yeah, I will agree 100% with you on that. You know, we have clients who are,
some of the very largest tech companies in the world who are building a lot of these data centers.
And, you know, we've sat in on their internal meetings and summits. And it's very clear
up and down the change. They absolutely care about the environment. It's a huge priority for them.
And it's nice to see and it's nice to work to your point with people who have a similar mindset.
I want to ask you to put on your operating partner of digital gravity infrastructure partners
hat for a minute and tell us your perspective on 2026 capital trends of digital infrastructure
investments. Yes, I can say it's excellent and the future look really bright. Especially,
especially, you know, we're all kind of like brief the air of Nvidia ecosystem. So I always say
seriously, if I'm a the capital trend perspective, the outlook for AI digital infrastructure
and digital gravity is only one of the fun that I work in. There's other ones that I also support.
The outlook is really good. From a pipeline perspective somewhere, we have no short capital
and actually raising capital when we actually have these projects that build out, you know,
DXS reference architecture design and the different AI factories. So we are not so much just going
and grab the power because we can. We actually look for those opportunities that we can actually
be a coach contributor because when we showed up, we can be an excellent anchor tenant.
We can be an excellent off-ticker for a lot of new clean energy projects. So we speak not just
loudly. We actually take action in terms of showing up as anchor tenant contract contractual
revenue multi-year with credit worthiness credit that we earn for. Nice to have to have those
multiple. So from a capital perspective, there's genuinely no short supply. Now, obviously,
there's pruning going on and it is a competitive field because similar to energy storage, we all
have seen, right? You know, the price have gone down and we are going to drive the efficiency.
You know, we are going to drive the efficiency. You will stay profitable because
you are adding value during creation and we will continue to actually drive the cost curve down
for building the data center in a much shorter time frame and using less capital to do a lot more.
So let me be specific. We are expecting the megawatt that we're actually going to build. Maybe,
I don't know, just pick 40 to 60 is a good range. 40 to 60 megawatt where we're actually going to pay
used to be is 46 megawatt. We are actually driving that efficiency in that regard. So, you know,
stay alert for some of the people we're going to negotiate with you, but however, you're building
40 to 60 megawatt, you shouldn't be spending, you know, connects of what we used to build for
four megawatt, right? Because there's a lot more efficient. So, we actually wanted to kind of see
that reverse because by doing so, Samir, we make that to be affordable. We make it to be
pervasive and that's how we actually try to push the innovation envelope be able to measure that. So,
that's no distinction between just a sustainable data center, you know, just good for the environment.
We want the cake and we want to eat it too, right? Meaning that we are building sustainable data
center that is going to deliver enterprise revenue at the same time. It has to advance humanity.
It has to advance protecting the environment and make it better. Yeah, I'm curious. How do you
distinguish between investments that are sustainable and create, you know, this value and the
contrast of that and just, you know, investments that create enterprise value. Like, how do you
how do you think about it and your investment thesis? We look at that in terms of a value matrix
that we actually created by location, okay? So, we input a lot of data in terms of what is
available to us that a lot of the providers or vendors or partners information might be.
And then we go back and we basically use our design, you know, I drive a lot of those
discussion by saying that, hey, we are not a singular, we're not sequential. What we like to do
is actually work backwards, right? So, I'll give you three example that we happen this week.
We want to do an AI factory commercial transactions in days, not months. Not to say I want you to work
late at night last night and you don't go to sleep so you give it to me in two days versus I give you
six weeks to get back with me on a boat. No, not at all. What we have done is basically the preparation
work timing. It takes longer and we basically do due diligence during your preparation work.
When we start socializing with line-minded people, it's just a lot faster. When we genuinely have
to trust with each other, we used to tool call speed of trust. So, you and I don't even, you and I
will finish each other's sentence, so to speak, because we are line-minded in terms of what we have
and you're going to help me to fill the gap and I'm going to help you to create value over your assets,
right? So, so when it comes time to we sitting down to do the contractual signature,
we already have vetted out the fuel at the financial efficiency. We already vetted out the resources,
we already vetted out regulatory constraints and whatnot. So, we then be able to clearly transact
in 48 hours because it doesn't take that long and it's all digital signature anyway, right?
Okay, so the part on that one is good and another one varies. My favorite metric is basically call
time to market and commissioning. When we can absolutely use the reference architecture that we
actually also have announced this week in addition to the older version of the AI factory reference
architecture. Well, actually every hyperscaler and when they do the cloud or even the enterprise
data center that I support at Goldman Sachs and whatnot, we always have reference architecture.
We, you know, you got to be kidding, right? We don't build everything one off and we don't do that.
So there's templates, you know, similar to how you do the podcast just like, you know,
instructions on actually how you supported it. There's like, empathize how you do that to be more
efficient and you continue to improve your performance. It's the fact that we use the reference
architecture, be able to freeze the code, freeze the design. So when you have the design
freeze to commissioning, you know what are the key things you need to kind of get done, right?
Okay. Then obviously there's some life things that you need to pivot because there's always
some issues coming up and we're driving for 180 days and we're going to drive for 90 days in
terms of being burning up for live production. So no more about be able to have a baby in nine months.
Those days are gone. Okay. So we're going to be driving efficiency in that regard and let's see
what else. And then the third one, I would say you think about it from a ecosystem.
There's a lot of talk right now or at least this year or last year, a lot of people just kind of
like freak out. It's like, oh my god, the AI systems are so dense, you know, they're megawatt
per rack. And so you need to kind of like who those guys, you know, this and that the whole thing.
And a lot of people came on and start talking about thermal management.
Well, at the end of the day, what we actually trying to do is not to solve the cooling problem.
Same here. What is the problem you think we're trying to solve? Remove the heat.
You don't need an air conditioning if you actually don't feel heat in the first place, right?
So those are some of the things that we really do. So it's like being a critical thinker is like
not to solve problems faster. It's solve the problem. So that's actually really great to be able to
work together on that when you talk to capital investments. It's not to pay, you know, attention
to all issues, but identify what are the priority and the severity of the of the topics that we
need to address. And then you go all the way, which is called integration in that regard. So what
we're working on is a stack integration vertically, but we want to keep everything open as an open
system, use open source for horizontal partnership. Yeah. And you're doing
this work at a global scale. You have a very cool role as the senior data center advisor
to the UN SDG, the sustainable development goals. Can you talk a little bit about what those are
and what pathways are, what what the pathways are and which pathways are the most off track today?
Yes. Well, that was actually changed. It actually turned out to be something that I have to say
I sit in a meeting with Stanford professor, but he was actually just too busy to be able to
do the mapping of the data center with the UN SDG goal. And I was at that time to see all
for eBay international, right? And I say, hey, you know, the goals looked really great. They're all
very pretty and whatnot, but we'll never use it. And I think I was then thrown into the ring,
as by saying that, well, okay, why would you say you won't use it? And so I start identifying
through the sigma, the six sigma method and being able to identify, okay, the UN SDG goal set all
this. Well, we kind of say it this way. So it's more like a language diversification. So when I
start mapping the language and the taxonomy by saying that, hey, we actually meant the same thing.
Why don't we say it the same way? Then all of a sudden, we actually then very quickly be able to
identify many of the innovation goals and whatnot. And I have an illustration for a white paper that
I did that probably about I would say 15 years ago. And it still worked today. And I used that to
discussing classes like what is innovation infrastructure mean? What is responsible generation
mean? What is responsible consumption really mean? Right? Okay. So what I talked about a little bit
early about, hey, don't use water if you don't need to. You know, don't waste resource. You don't
need to. Well, that is responsible consumption, right? Okay. So as long as we actually start mapping
those goals in our design, we were able to come up with carbon neutrality goals, we were able to
actually come up with, you know, more extension of that like the CSI report and whatnot. And we just
start mapping the elements in there. So in a way, I'm very proud that we all be able to say,
you know, what we really meant in a common language, and we all understand each other, you know,
when we in the same room or not even in the room, myself, when we felt like that way. So I think
that was important to be able to unify that. The one that I would say the UNSDG goal that we most
of track on specifically in the data center is the education of young talents and gender equality.
We, we lack future generation leaders in the data center. The average age in our sector
is 52 and a half. That is unacceptable. Okay. I'm not advocating that if you are all for that,
you shouldn't be in a sector. Absolutely not. That is not what I meant. Okay. But there is
something wrong in terms of the thinking, especially I mentioned a little bit earlier that it
comes this year for the young generation to have the literacy of sustainability, and they don't
even need to learn in the classroom. Actually, I tell into all of you in the audience, how did you
actually start to recycle? Well, in my case, intellectually, I kind of understand, but it tick,
it actually took my two young daughter who was doing a science project at seven and nine,
that actually I sincerely start practicing recycling. I understand it, but why don't I do it? Why
don't you add those to it? But from a young talent perspective, of course, you should recycle,
mommy. So that's basically what I meant. So I would say invite a young talent in your group,
invite a woman into your team. All of a sudden, if you genuinely have an open mind, we all
would think very differently. And that's basically what is all about education for all everyone,
every being in that regard. And that's basically what you and SVG stand for. And I really admire
the leaders that put those goals in place, and we just need to embrace it and practice it.
So I really think the off track is the education right now that we're not investing enough
for the young talent. And I think we need to happen at all level, at the federal level, and also
around your neighborhood. It's great. I mean, fantastic goal and
appreciate all the work that you're doing on that front. And what I love about these goals is that
it has the philosophy of having all of these countries move together at the same pace.
And there are a lot of countries, obviously, they need a lot more help than others. And it's good
to know that there are people out there thinking about these things and working on these problems,
including you, of course. So you're someone that has a global reputation and a huge,
you know, record of success over the last three decades as you think about the data center market
and how it's going to evolve over the next five years. How do you think about where you're going to
spend your time and create your impact? Yes, where I would like to spend my time is continue the
journey because we have a little bit of a road back that I didn't kind of expect. Oftentimes,
we'll also think for what movement, but we didn't, you know, it's a surprise that we didn't think
about we're going to have a road back in our country. So I still think there's a lot of work
right now, specifically the US in the clean energy transition and sustainability leadership.
We're not going to give up. We're going to continue to focus our effort to work with climate
experts, researchers at the Intergovernmental Panel of Climate Change in short is IPCC,
who are worldwide experts who help influence the duration of effective climate environmental policy
and economic model that can align to uplift the environmental protection index for, you know,
basically globally, right? It really doesn't matter the countries. We just need to continue to
actually have those sort of discussions. So I'm going to spend some time on that. Specifically,
in the AI world, I will continue to actually contribute as a reference architecture designer
and where it makes sense is to accelerate it through capital and talent. So I very much
like to see a data center. Maybe some year, one day I will come back and say, "You know,
I was wrong in answering this question. I do have a favorite." And the average age of building
the entire data center is actually 23. Now, wouldn't that be delightful? And they're all women, okay?
So, stay tuned. We are actually building some wood data center now that is using non-flammable
materials. That has zero carbon. And we're already done the zero-dm. We're done the zero water.
So I think we just need to show the world that it's actually possible. And people will enjoy
to see the metrics because success breeds, you know, success as many fathers as with it this way.
And it breeds ecosystem a lot each year. And it's wonderful to use many of these projects right
now. And I have like gigawatts of pipeline of our project. And now we should continue to kind of
demonstrate it. What I love to see is be able to come back to you. And when you can invite me back
if it's helpful and say, "Hey, you know, you've done 4.8 over 33 years." And it hopefully do not
take me another 33 years for me to double that number. And I am very committed that I think we need
to basically make every gigawatt update AI factory
to be sustainable, and that is actually happening.
I think it's happening.
It's happening in the location,
which is not what I prefer, but it's actually happening.
So I love this country.
I love to see more of that, just in my backyard, right?
- Hi to two, I'm with you.
I hope we get there.
I wanna thank you for your time today
and the great conversation.
Congratulations on all the incredible success
and appreciate all the work that you're doing
in the leadership on the sustainability
and data center front, as well as the advocacy work
that you're doing on behalf of women in this industry.
Thank you so much for your time.
- Thank you, thank you for having me.
It's a pleasure.
- Thank you for listening to Up Time Now.
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pass it along to someone in New Network.
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Podcast Summary
Key Points:
Susanna Cass advocates for absolute zero over net zero, emphasizing on-site clean energy generation hour by hour rather than relying on offsets.
The shift to circular economy models—reducing waste, reusing resources, and regenerating materials—is critical for achieving carbon neutrality in data centers.
Key pillars to carbon neutrality include clean energy adoption, resource efficiency, carbon capture and reuse, zero landfill goals, and eliminating water use entirely.
She highlights the importance of leadership mindset, youth engagement, and inclusive hiring to drive sustainability and innovation across the industry.
Data centers must align with UN Sustainable Development Goals, especially in education and gender equality, to ensure long-term progress and intergenerational responsibility.
AI-driven design and reference architectures enable faster deployment, reduced time-to-market, and greater efficiency in building sustainable data centers.
Countries like Sweden and the Nordic nations lead in sustainability due to hydro-based renewable energy and circular lifestyles, while the U.S. lags due to policy withdrawal and environmental performance decline.
Sustainable data center investments must deliver both environmental benefits and enterprise value, with capital trends showing rising efficiency and demand for green, scalable AI infrastructure.
Summary:
Susanna Cass, a leading sustainability advocate in the data center industry, emphasizes a transformative shift from net zero to absolute zero, where data centers generate clean energy on-site in real time rather than relying on offsets. She outlines five pillars of carbon neutrality—clean energy, efficiency, emission capture, zero waste, and zero water use—all rooted in a circular economy that replaces linear, resource-depleting models. Her work highlights how data centers, especially those powered by AI, can drive environmental and social progress through innovation and responsible design.
She stresses the urgency of youth engagement, gender diversity, and leadership mindset changes to align with the UN Sustainable Development Goals. Case studies from global projects, including a zero-generator, 90MW London data center, demonstrate feasibility and efficiency. S.
faces environmental setbacks, nations like Sweden lead through systemic sustainability. Ultimately, sustainable digital infrastructure is not just environmentally sound but economically viable, with capital trends favoring compact, efficient, and AI-integrated facilities. As she envisions, future data centers will be operated by younger, inclusive teams, with metrics showing a median age of just 23, built with zero-carbon, non-flammable materials—proving that sustainability and innovation are not only possible, but essential for the future.
FAQs
Net zero offsets energy consumption with renewable energy purchases at the end of the year. Absolute zero goes further by generating clean energy on-site, hour by hour, and measuring real-time greenhouse gas reductions instead of relying on offsets.
Sustainability is critical to ensure that AI expansion doesn't accelerate environmental degradation. It promotes a carbon-free future, protects natural ecosystems, and ensures that technological growth supports planetary health and long-term resilience.
The Nordic countries, like Sweden and Norway, lead due to abundant renewable energy (e.g., hydro), strong government support for circular economy, and deeply embedded sustainable lifestyles. The U.S. is lagging in sustainability rankings despite being a leader in data center deployment.
The five pillars are: (1) clean energy use, (2) energy and resource efficiency, (3) capturing and reusing emissions, (4) zero landfill and zero embodied carbon, and (5) eliminating water use entirely to achieve water-negative operations.
Operators can improve efficiency by reducing over-professioning of backup resources, using AI-driven failover systems, and optimizing power usage effectiveness (PUE) to approach 1.0. They can also eliminate waste through circular design, reuse of materials, and heat recovery for agriculture or industrial use.
Sustainability is incentivized by brand reputation, customer loyalty, and access to light-minded talent. Companies benefit from positive public perception, competitive advantage, and long-term resilience—making sustainability a key driver of enterprise value.
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