Is anyone else having problems not getting renewed in Digital Realty Facilities. We had the same customer not get renewed in Frankfurth last year and now in Ashburn this week. They are clearing out suites to lease to hyperscale customers. I totally understand the business decision on their side, but I think this will become more common place in the future. Thanks [Logo] <https://www.mejeticks.com/> Robert DeVita CEO and Founder (469) 441-8864 <tel:(469)%20441-8864> | (469) 581-2160<tel:(469)%20581-2160> radevita@mejeticks.com <mailto:radevita@mejeticks.com> | mejeticks.com<https://www.mejeticks.com/> 2323 N Akard Street, Dallas, TX [cid:956a49a6-051b-4b1f-9612-a73a2b7d696e]<https://smart.mejeticks.com/vsig/radevita/test.html>
They are doing that at 350 E. Cermak. When Hivelocity abandoned Chicago, they rushed everyone out of Suite 240. They are going to gut it and rebuild. -----Original Message----- From: Robert DeVita via NANOG <nanog@lists.nanog.org> Sent: Thursday, April 23, 2026 15:59 To: North American Network Operators Group <nanog@lists.nanog.org> Cc: Robert DeVita <radevita@mejeticks.com> Subject: Digital Realty- Non Renewal Is anyone else having problems not getting renewed in Digital Realty Facilities. We had the same customer not get renewed in Frankfurth last year and now in Ashburn this week. They are clearing out suites to lease to hyperscale customers. I totally understand the business decision on their side, but I think this will become more common place in the future. Thanks [Logo] <https://www.mejeticks.com/> Robert DeVita CEO and Founder (469) 441-8864 <tel:(469)%20441-8864> | (469) 581-2160<tel:(469)%20581-2160> radevita@mejeticks.com <mailto:radevita@mejeticks.com> | mejeticks.com<https://www.mejeticks.com/> 2323 N Akard Street, Dallas, TX [cid:956a49a6-051b-4b1f-9612-a73a2b7d696e]<https://smart.mejeticks.com/vsig/ radevita/test.html> _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/nanog@lists.nanog.org/message/5SSOWVXH XAF2N5PXPIQR5PGG4YOZICPC/
I don't understand compute and storage beyond nominal amounts in carrier hotels. That's what suburban, exurban, tier 2 cities are for. The hyperscalers have been building in corn fields states away from tier 1 markets for a decade. Sure, Akamai, Cloudflare, Google, etc. probably have large clusters for carrier hotels in tier 1s, but Cermak is a big building. They can't use up *THAT* much of it. Also, diversifying to tier 2 markets would probably help a lot not have so many eggs in one basket. ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP ----- Original Message ----- From: "John Palmer via NANOG" <nanog@lists.nanog.org> To: "North American Network Operators Group" <nanog@lists.nanog.org> Cc: "John Palmer" <nanog2@adns.net> Sent: Thursday, April 23, 2026 4:19:33 PM Subject: RE: Digital Realty- Non Renewal They are doing that at 350 E. Cermak. When Hivelocity abandoned Chicago, they rushed everyone out of Suite 240. They are going to gut it and rebuild. -----Original Message----- From: Robert DeVita via NANOG <nanog@lists.nanog.org> Sent: Thursday, April 23, 2026 15:59 To: North American Network Operators Group <nanog@lists.nanog.org> Cc: Robert DeVita <radevita@mejeticks.com> Subject: Digital Realty- Non Renewal Is anyone else having problems not getting renewed in Digital Realty Facilities. We had the same customer not get renewed in Frankfurth last year and now in Ashburn this week. They are clearing out suites to lease to hyperscale customers. I totally understand the business decision on their side, but I think this will become more common place in the future. Thanks [Logo] <https://www.mejeticks.com/> Robert DeVita CEO and Founder (469) 441-8864 <tel:(469)%20441-8864> | (469) 581-2160<tel:(469)%20581-2160> radevita@mejeticks.com <mailto:radevita@mejeticks.com> | mejeticks.com<https://www.mejeticks.com/> 2323 N Akard Street, Dallas, TX [cid:956a49a6-051b-4b1f-9612-a73a2b7d696e]<https://smart.mejeticks.com/vsig/ radevita/test.html> _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/nanog@lists.nanog.org/message/5SSOWVXH XAF2N5PXPIQR5PGG4YOZICPC/ _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/nanog@lists.nanog.org/message/CGB6KOK6...
On Thu, Apr 23, 2026 at 5:32 PM Mike Hammett via NANOG <nanog@lists.nanog.org> wrote:
but Cermak is a big building. They can't use up *THAT* much of it. Also, diversifying to tier 2 markets would probably help a lot not have so many eggs in one basket.
how much power, exactly, is landing in Cermak? do you think you could use all of that up with your set of 120kw NVidia racks?
On Thu, Apr 23, 2026 at 3:36 PM Christopher Morrow via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 5:32 PM Mike Hammett via NANOG <nanog@lists.nanog.org> wrote:
but Cermak is a big building. They can't use up *THAT* much of it. Also, diversifying to tier 2 markets would probably help a lot not have so many eggs in one basket.
how much power, exactly, is landing in Cermak? do you think you could use all of that up with your set of 120kw NVidia racks?
What, nobody is putting shipping-container-sized micro nuclear reactors on the rooftops of the buildings to augment power capacity? Come on, people, start thinking outside the box a little. ;) Matt (yes, yes, permitting, upgrading electrical wiring to handle 10MW coming in from a shipping container on the roof, not as trivial as it sounds...but still, I think we're coming up on the tail end of counting entirely on the power grid to deliver power to high-density compute facilities)
Once upon a time, Matthew Petach <mpetach@netflight.com> said:
What, nobody is putting shipping-container-sized micro nuclear reactors on the rooftops of the buildings to augment power capacity?
Come on, people, start thinking outside the box a little. ;)
I know your being funny, but even if we had Mr. Fusion, the real problem is all that power turns into heat that has to be dissipated. -- Chris Adams <cma@cmadams.net>
That sounds like a compute rack that would probably be better off somewhere *NOT* Cermak. ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP ----- Original Message ----- From: "Christopher Morrow via NANOG" <nanog@lists.nanog.org> To: "North American Network Operators Group" <nanog@lists.nanog.org> Cc: "Christopher Morrow" <morrowc.lists@gmail.com> Sent: Thursday, April 23, 2026 5:36:00 PM Subject: Re: Digital Realty- Non Renewal On Thu, Apr 23, 2026 at 5:32 PM Mike Hammett via NANOG <nanog@lists.nanog.org> wrote:
but Cermak is a big building. They can't use up *THAT* much of it. Also, diversifying to tier 2 markets would probably help a lot not have so many eggs in one basket.
how much power, exactly, is landing in Cermak? do you think you could use all of that up with your set of 120kw NVidia racks? _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/nanog@lists.nanog.org/message/ZPSCG7CX...
Want to bet the roofs of data centers will begin looking like CPU heat sinks? Fins and pipes, high up into the sky. Or maybe the reverse, deep into the ground. Stephen On 2026-04-23 19:04, Chris Adams via NANOG wrote:
I know your being funny, but even if we had Mr. Fusion, the real problem is all that power turns into heat that has to be dissipated.
Put them all in cold places and provide district heating in the winter. Fewer people would grouse about data centers if they came with free heat for your house :) On Thu, Apr 23, 2026 at 6:38 PM Stephen Fulton via NANOG < nanog@lists.nanog.org> wrote:
Want to bet the roofs of data centers will begin looking like CPU heat sinks? Fins and pipes, high up into the sky. Or maybe the reverse, deep into the ground.
Stephen
On 2026-04-23 19:04, Chris Adams via NANOG wrote:
I know your being funny, but even if we had Mr. Fusion, the real problem is all that power turns into heat that has to be dissipated.
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We've long surpassed the power available from the commercial power grid. MANY large scale data centers are using cogeneration with natural gas turbines. I don't however think they would be approved for that in the middle of downtown Chicago. shane On Thu, Apr 23, 2026 at 6:54 PM Matthew Petach via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 3:36 PM Christopher Morrow via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 5:32 PM Mike Hammett via NANOG <nanog@lists.nanog.org> wrote:
but Cermak is a big building. They can't use up *THAT* much of it. Also, diversifying to tier 2 markets would probably help a lot not have so many eggs in one basket.
how much power, exactly, is landing in Cermak? do you think you could use all of that up with your set of 120kw NVidia racks?
What, nobody is putting shipping-container-sized micro nuclear reactors on the rooftops of the buildings to augment power capacity?
Come on, people, start thinking outside the box a little. ;)
Matt
(yes, yes, permitting, upgrading electrical wiring to handle 10MW coming in from a shipping container on the roof, not as trivial as it sounds...but still, I think we're coming up on the tail end of counting entirely on the power grid to deliver power to high-density compute facilities) _______________________________________________ NANOG mailing list
https://lists.nanog.org/archives/list/nanog@lists.nanog.org/message/KHRBBKCQ...
And now thanks to the Iran war, I suspect they’ll all hurriedly transition to wind or solar or anything other than natural gas. From: Shane Ronan via NANOG <nanog@lists.nanog.org> Date: Friday, 24 April 2026 at 6:51 AM To: North American Network Operators Group <nanog@lists.nanog.org> Cc: Shane Ronan <shane@ronan-online.com> Subject: Re: Digital Realty- Non Renewal We've long surpassed the power available from the commercial power grid. MANY large scale data centers are using cogeneration with natural gas turbines. I don't however think they would be approved for that in the middle of downtown Chicago. shane On Thu, Apr 23, 2026 at 6:54 PM Matthew Petach via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 3:36 PM Christopher Morrow via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 5:32 PM Mike Hammett via NANOG <nanog@lists.nanog.org> wrote:
but Cermak is a big building. They can't use up *THAT* much of it. Also, diversifying to tier 2 markets would probably help a lot not have so many eggs in one basket.
how much power, exactly, is landing in Cermak? do you think you could use all of that up with your set of 120kw NVidia racks?
What, nobody is putting shipping-container-sized micro nuclear reactors on the rooftops of the buildings to augment power capacity?
Come on, people, start thinking outside the box a little. ;)
Matt
(yes, yes, permitting, upgrading electrical wiring to handle 10MW coming in from a shipping container on the roof, not as trivial as it sounds...but still, I think we're coming up on the tail end of counting entirely on the power grid to deliver power to high-density compute facilities) _______________________________________________ NANOG mailing list
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Neither solar or wind is particularly cost effective, even at scale. Shane
On Apr 23, 2026, at 10:00 PM, Suresh Ramasubramanian <ops.lists@gmail.com> wrote:
And now thanks to the Iran war, I suspect they’ll all hurriedly transition to wind or solar or anything other than natural gas.
From: Shane Ronan via NANOG <nanog@lists.nanog.org> Date: Friday, 24 April 2026 at 6:51 AM To: North American Network Operators Group <nanog@lists.nanog.org> Cc: Shane Ronan <shane@ronan-online.com> Subject: Re: Digital Realty- Non Renewal
We've long surpassed the power available from the commercial power grid. MANY large scale data centers are using cogeneration with natural gas turbines. I don't however think they would be approved for that in the middle of downtown Chicago.
shane
On Thu, Apr 23, 2026 at 6:54 PM Matthew Petach via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 3:36 PM Christopher Morrow via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 5:32 PM Mike Hammett via NANOG <nanog@lists.nanog.org> wrote:
but Cermak is a big building. They can't use up *THAT* much of it. Also, diversifying to tier 2 markets would probably help a lot not have so many eggs in one basket.
how much power, exactly, is landing in Cermak? do you think you could use all of that up with your set of 120kw NVidia racks?
What, nobody is putting shipping-container-sized micro nuclear reactors on the rooftops of the buildings to augment power capacity?
Come on, people, start thinking outside the box a little. ;)
Matt
(yes, yes, permitting, upgrading electrical wiring to handle 10MW coming in from a shipping container on the roof, not as trivial as it sounds...but still, I think we're coming up on the tail end of counting entirely on the power grid to deliver power to high-density compute facilities) _______________________________________________ NANOG mailing list
https://lists.nanog.org/archives/list/nanog@lists.nanog.org/message/KHRBBKCQ...
NANOG mailing list https://lists.nanog.org/archives/list/nanog@lists.nanog.org/message/TFTAO6ZZ...
We both know that - but we also know that LNG has suddenly gone from being cheap and plentiful to crazy expensive and often in short supply thanks to the Iran war. From: sronan@ronan-online.com <sronan@ronan-online.com> Date: Friday, 24 April 2026 at 7:52 AM To: Suresh Ramasubramanian <ops.lists@gmail.com> Cc: nanog@lists.nanog.org <nanog@lists.nanog.org>; Shane Ronan <shane@ronan-online.com> Subject: Re: Digital Realty- Non Renewal Neither solar or wind is particularly cost effective, even at scale. Shane On Apr 23, 2026, at 10:00 PM, Suresh Ramasubramanian <ops.lists@gmail.com> wrote: And now thanks to the Iran war, I suspect they’ll all hurriedly transition to wind or solar or anything other than natural gas. From: Shane Ronan via NANOG <nanog@lists.nanog.org> Date: Friday, 24 April 2026 at 6:51 AM To: North American Network Operators Group <nanog@lists.nanog.org> Cc: Shane Ronan <shane@ronan-online.com> Subject: Re: Digital Realty- Non Renewal We've long surpassed the power available from the commercial power grid. MANY large scale data centers are using cogeneration with natural gas turbines. I don't however think they would be approved for that in the middle of downtown Chicago. shane On Thu, Apr 23, 2026 at 6:54 PM Matthew Petach via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 3:36 PM Christopher Morrow via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 5:32 PM Mike Hammett via NANOG <nanog@lists.nanog.org> wrote:
but Cermak is a big building. They can't use up *THAT* much of it. Also, diversifying to tier 2 markets would probably help a lot not have so many eggs in one basket.
how much power, exactly, is landing in Cermak? do you think you could use all of that up with your set of 120kw NVidia racks?
What, nobody is putting shipping-container-sized micro nuclear reactors on the rooftops of the buildings to augment power capacity?
Come on, people, start thinking outside the box a little. ;)
Matt
(yes, yes, permitting, upgrading electrical wiring to handle 10MW coming in from a shipping container on the roof, not as trivial as it sounds...but still, I think we're coming up on the tail end of counting entirely on the power grid to deliver power to high-density compute facilities) _______________________________________________ NANOG mailing list
https://lists.nanog.org/archives/list/nanog@lists.nanog.org/message/KHRBBKCQ...
NANOG mailing list https://lists.nanog.org/archives/list/nanog@lists.nanog.org/message/TFTAO6ZZ...
Nor suitable for 24/7 loads. The past year has seen a lot of attention paid to small and large nuclear. We'll probably see a lot more of it. ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP ----- Original Message ----- From: "sronan--- via NANOG" <nanog@lists.nanog.org> To: "Suresh Ramasubramanian" <ops.lists@gmail.com> Cc: nanog@lists.nanog.org, "Shane Ronan" <shane@ronan-online.com>, sronan@ronan-online.com Sent: Thursday, April 23, 2026 9:22:24 PM Subject: Re: Digital Realty- Non Renewal Neither solar or wind is particularly cost effective, even at scale. Shane
On Apr 23, 2026, at 10:00 PM, Suresh Ramasubramanian <ops.lists@gmail.com> wrote:
And now thanks to the Iran war, I suspect they’ll all hurriedly transition to wind or solar or anything other than natural gas.
From: Shane Ronan via NANOG <nanog@lists.nanog.org> Date: Friday, 24 April 2026 at 6:51 AM To: North American Network Operators Group <nanog@lists.nanog.org> Cc: Shane Ronan <shane@ronan-online.com> Subject: Re: Digital Realty- Non Renewal
We've long surpassed the power available from the commercial power grid. MANY large scale data centers are using cogeneration with natural gas turbines. I don't however think they would be approved for that in the middle of downtown Chicago.
shane
On Thu, Apr 23, 2026 at 6:54 PM Matthew Petach via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 3:36 PM Christopher Morrow via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 5:32 PM Mike Hammett via NANOG <nanog@lists.nanog.org> wrote:
but Cermak is a big building. They can't use up *THAT* much of it. Also, diversifying to tier 2 markets would probably help a lot not have so many eggs in one basket.
how much power, exactly, is landing in Cermak? do you think you could use all of that up with your set of 120kw NVidia racks?
What, nobody is putting shipping-container-sized micro nuclear reactors on the rooftops of the buildings to augment power capacity?
Come on, people, start thinking outside the box a little. ;)
Matt
(yes, yes, permitting, upgrading electrical wiring to handle 10MW coming in from a shipping container on the roof, not as trivial as it sounds...but still, I think we're coming up on the tail end of counting entirely on the power grid to deliver power to high-density compute facilities) _______________________________________________ NANOG mailing list
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CBS Sunday Morning, April 19, 2026 had a story on a company named Panthalassa, who take a large steel tube and basically make it into an ocean wave generator which can bounce around untethered, communicating via satellite, with a data center inside. Then there is Senator Mike Rounds (R-SD) who thinks an orbiting data center can be cooled by the low temperature in space, but nobody has explained where the heat can go if there is only vacuum surrounding it. On 4/23/26 7:24 PM, Mike Hammett via NANOG wrote:
Nor suitable for 24/7 loads.
The past year has seen a lot of attention paid to small and large nuclear. We'll probably see a lot more of it.
----- Mike Hammett Intelligent Computing Solutions
Midwest Internet Exchange
The Brothers WISP
----- Original Message ----- From: "sronan--- via NANOG" <nanog@lists.nanog.org> To: "Suresh Ramasubramanian" <ops.lists@gmail.com>
Neither solar or wind is particularly cost effective, even at scale.
Shane
On Apr 23, 2026, at 10:00 PM, Suresh Ramasubramanian <ops.lists@gmail.com> wrote:
And now thanks to the Iran war, I suspect they’ll all hurriedly transition to wind or solar or anything other than natural gas.
From: Shane Ronan via NANOG <nanog@lists.nanog.org>
We've long surpassed the power available from the commercial power grid. MANY large scale data centers are using cogeneration with natural gas turbines. I don't however think they would be approved for that in the middle of downtown Chicago.
shane
On Thu, Apr 23, 2026 at 6:54 PM Matthew Petach via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 3:36 PM Christopher Morrow via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 5:32 PM Mike Hammett via NANOG <nanog@lists.nanog.org> wrote:
but Cermak is a big building. They can't use up *THAT* much of it. Also, diversifying to tier 2 markets would probably help a lot not have so many eggs in one basket.
how much power, exactly, is landing in Cermak? do you think you could use all of that up with your set of 120kw NVidia racks?
What, nobody is putting shipping-container-sized micro nuclear reactors on the rooftops of the buildings to augment power capacity?
Come on, people, start thinking outside the box a little. ;)
Matt
(yes, yes, permitting, upgrading electrical wiring to handle 10MW coming in from a shipping container on the roof, not as trivial as it sounds...but still, I think we're coming up on the tail end of counting entirely on the power grid to deliver power to high-density compute facilities) _______________________________________________
On Thu, Apr 23, 2026 at 11:37 PM Dale Carstensen via NANOG <nanog@lists.nanog.org> wrote:
CBS Sunday Morning, April 19, 2026 had a story on a company named Panthalassa, who take a large steel tube and basically make it into an ocean wave generator which can bounce around untethered, communicating via satellite, with a data center inside.
Perfect. What was that saying? "I encorage my competitors.. something something..."
Then there is Senator Mike Rounds (R-SD) who thinks an orbiting data center can be cooled by the low temperature in space, but nobody has explained where the heat can go if there is only vacuum surrounding it.
There was once this fellow that spun a story about space travel... how great and how much it'd be good... and then, apparently, after talking about this for nye on 10 years that person suddenly had orbital mechanics explained to them... I imagine that a similar case is happening with the senator... Also, also your 'gotta repair a harddrive' costs suddenly got very much more expensive.
That's right up there with the congressman who was worried that Guam was going to sink into the ocean because we had too many Marines on it.... On Thursday, April 23rd, 2026 at 11:45 PM, Christopher Morrow via NANOG <nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 11:37 PM Dale Carstensen via NANOG <nanog@lists.nanog.org> wrote:
CBS Sunday Morning, April 19, 2026 had a story on a company named Panthalassa, who take a large steel tube and basically make it into an ocean wave generator which can bounce around untethered, communicating via satellite, with a data center inside.
Perfect. What was that saying? "I encorage my competitors.. something something..."
Then there is Senator Mike Rounds (R-SD) who thinks an orbiting data center can be cooled by the low temperature in space, but nobody has explained where the heat can go if there is only vacuum surrounding it.
There was once this fellow that spun a story about space travel... how great and how much it'd be good... and then, apparently, after talking about this for nye on 10 years that person suddenly had orbital mechanics explained to them...
I imagine that a similar case is happening with the senator... Also, also your 'gotta repair a harddrive' costs suddenly got very much more expensive. _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/nanog@lists.nanog.org/message/KQGKWBNH...
The past year has seen a lot of attention paid to small and large nuclear. We'll probably see a lot more of it.
Random articles on the clickbait tech press circuits are a far cry from actual in production use. (See also, IPv8 lulz from last week. ) Very few SMRs are actually running anywhere. Canada approved a 4 unit SMR project at Darlington in 2020, they didn't start construction on the 1st until until May 2025, and don't expect that to be online until 2030. 10 years for 300 MW thermal isn't a great value proposition when you can spend the same 10 years to get a 1GW thermal reactor up. Large nuclear will unlikely be a solution either. You don't just blow the dust bunnies off a decommissioned reactor to fire it up again, and even Big Tech isn't likely to be able to grease the NRC into easing most regulations. Even the dumbest of politicians is smart enough to know that a TMI in your district is REALLY REALLY BAD. On Thu, Apr 23, 2026 at 10:24 PM Mike Hammett via NANOG < nanog@lists.nanog.org> wrote:
Nor suitable for 24/7 loads.
The past year has seen a lot of attention paid to small and large nuclear. We'll probably see a lot more of it.
----- Mike Hammett Intelligent Computing Solutions
Midwest Internet Exchange
The Brothers WISP
----- Original Message ----- From: "sronan--- via NANOG" <nanog@lists.nanog.org> To: "Suresh Ramasubramanian" <ops.lists@gmail.com> Cc: nanog@lists.nanog.org, "Shane Ronan" <shane@ronan-online.com>, sronan@ronan-online.com Sent: Thursday, April 23, 2026 9:22:24 PM Subject: Re: Digital Realty- Non Renewal
Neither solar or wind is particularly cost effective, even at scale.
Shane
On Apr 23, 2026, at 10:00 PM, Suresh Ramasubramanian < ops.lists@gmail.com> wrote:
And now thanks to the Iran war, I suspect they’ll all hurriedly transition to wind or solar or anything other than natural gas.
From: Shane Ronan via NANOG <nanog@lists.nanog.org> Date: Friday, 24 April 2026 at 6:51 AM To: North American Network Operators Group <nanog@lists.nanog.org> Cc: Shane Ronan <shane@ronan-online.com> Subject: Re: Digital Realty- Non Renewal
We've long surpassed the power available from the commercial power grid. MANY large scale data centers are using cogeneration with natural gas turbines. I don't however think they would be approved for that in the middle of downtown Chicago.
shane
On Thu, Apr 23, 2026 at 6:54 PM Matthew Petach via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 3:36 PM Christopher Morrow via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 5:32 PM Mike Hammett via NANOG <nanog@lists.nanog.org> wrote:
but Cermak is a big building. They can't use up *THAT* much of it. Also, diversifying to tier 2 markets would probably help a lot not have so many eggs in one basket.
how much power, exactly, is landing in Cermak? do you think you could use all of that up with your set of 120kw NVidia racks?
What, nobody is putting shipping-container-sized micro nuclear reactors on the rooftops of the buildings to augment power capacity?
Come on, people, start thinking outside the box a little. ;)
Matt
(yes, yes, permitting, upgrading electrical wiring to handle 10MW coming in from a shipping container on the roof, not as trivial as it sounds...but still, I think we're coming up on the tail end of counting entirely on the power grid to deliver power to high-density compute facilities) _______________________________________________ NANOG mailing list
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Nuclear on the roof you say? Just a matter of time. There are a bunch of startups in this area, shipping container sized operation intentions. Just saw a news report on this place that just started their HQ here in South Florida. Interesting stuff. https://www.ampera-x.com/ On Fri, Apr 24, 2026 at 12:32 PM Tom Beecher via NANOG <nanog@lists.nanog.org> wrote:
The past year has seen a lot of attention paid to small and large nuclear. We'll probably see a lot more of it.
Random articles on the clickbait tech press circuits are a far cry from actual in production use. (See also, IPv8 lulz from last week. )
Very few SMRs are actually running anywhere. Canada approved a 4 unit SMR project at Darlington in 2020, they didn't start construction on the 1st until until May 2025, and don't expect that to be online until 2030. 10 years for 300 MW thermal isn't a great value proposition when you can spend the same 10 years to get a 1GW thermal reactor up.
Large nuclear will unlikely be a solution either. You don't just blow the dust bunnies off a decommissioned reactor to fire it up again, and even Big Tech isn't likely to be able to grease the NRC into easing most regulations. Even the dumbest of politicians is smart enough to know that a TMI in your district is REALLY REALLY BAD.
On Thu, Apr 23, 2026 at 10:24 PM Mike Hammett via NANOG < nanog@lists.nanog.org> wrote:
Nor suitable for 24/7 loads.
The past year has seen a lot of attention paid to small and large nuclear. We'll probably see a lot more of it.
----- Mike Hammett Intelligent Computing Solutions
Midwest Internet Exchange
The Brothers WISP
----- Original Message ----- From: "sronan--- via NANOG" <nanog@lists.nanog.org> To: "Suresh Ramasubramanian" <ops.lists@gmail.com> Cc: nanog@lists.nanog.org, "Shane Ronan" <shane@ronan-online.com>, sronan@ronan-online.com Sent: Thursday, April 23, 2026 9:22:24 PM Subject: Re: Digital Realty- Non Renewal
Neither solar or wind is particularly cost effective, even at scale.
Shane
On Apr 23, 2026, at 10:00 PM, Suresh Ramasubramanian < ops.lists@gmail.com> wrote:
And now thanks to the Iran war, I suspect they’ll all hurriedly transition to wind or solar or anything other than natural gas.
From: Shane Ronan via NANOG <nanog@lists.nanog.org> Date: Friday, 24 April 2026 at 6:51 AM To: North American Network Operators Group <nanog@lists.nanog.org> Cc: Shane Ronan <shane@ronan-online.com> Subject: Re: Digital Realty- Non Renewal
We've long surpassed the power available from the commercial power grid. MANY large scale data centers are using cogeneration with natural gas turbines. I don't however think they would be approved for that in the middle of downtown Chicago.
shane
On Thu, Apr 23, 2026 at 6:54 PM Matthew Petach via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 3:36 PM Christopher Morrow via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 5:32 PM Mike Hammett via NANOG <nanog@lists.nanog.org> wrote:
but Cermak is a big building. They can't use up *THAT* much of it. Also, diversifying to tier 2 markets would probably help a lot not have so many eggs in one basket.
how much power, exactly, is landing in Cermak? do you think you could use all of that up with your set of 120kw NVidia racks?
What, nobody is putting shipping-container-sized micro nuclear reactors on the rooftops of the buildings to augment power capacity?
Come on, people, start thinking outside the box a little. ;)
Matt
(yes, yes, permitting, upgrading electrical wiring to handle 10MW coming in from a shipping container on the roof, not as trivial as it sounds...but still, I think we're coming up on the tail end of counting entirely on the power grid to deliver power to high-density compute facilities) _______________________________________________ NANOG mailing list
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Nuclear on roof in this age of drones is a truly wonderful idea. Everyone designs top floors to carry thousands of tonnes of armour and shielding. File under the “even if we could, should we?” folder. -I wonder how many of these startups are going to be running the Ocean Gate playbook of willfull ignorance in the pursuit of VC cash. Good luck pulling hard drives when even your robot dog can’t get near the rack without dying to gamma.
On 24 Apr 2026, at 21:59, Javier J via NANOG <nanog@lists.nanog.org> wrote:
Nuclear on the roof you say? Just a matter of time. There are a bunch of startups in this area, shipping container sized operation intentions. Just saw a news report on this place that just started their HQ here in South Florida. Interesting stuff.
On Fri, Apr 24, 2026 at 12:32 PM Tom Beecher via NANOG <nanog@lists.nanog.org> wrote:
The past year has seen a lot of attention paid to small and large nuclear. We'll probably see a lot more of it.
Random articles on the clickbait tech press circuits are a far cry from actual in production use. (See also, IPv8 lulz from last week. )
Very few SMRs are actually running anywhere. Canada approved a 4 unit SMR project at Darlington in 2020, they didn't start construction on the 1st until until May 2025, and don't expect that to be online until 2030. 10 years for 300 MW thermal isn't a great value proposition when you can spend the same 10 years to get a 1GW thermal reactor up.
Large nuclear will unlikely be a solution either. You don't just blow the dust bunnies off a decommissioned reactor to fire it up again, and even Big Tech isn't likely to be able to grease the NRC into easing most regulations. Even the dumbest of politicians is smart enough to know that a TMI in your district is REALLY REALLY BAD.
On Thu, Apr 23, 2026 at 10:24 PM Mike Hammett via NANOG < nanog@lists.nanog.org> wrote:
Nor suitable for 24/7 loads.
The past year has seen a lot of attention paid to small and large nuclear. We'll probably see a lot more of it.
----- Mike Hammett Intelligent Computing Solutions
Midwest Internet Exchange
The Brothers WISP
----- Original Message ----- From: "sronan--- via NANOG" <nanog@lists.nanog.org> To: "Suresh Ramasubramanian" <ops.lists@gmail.com> Cc: nanog@lists.nanog.org, "Shane Ronan" <shane@ronan-online.com>, sronan@ronan-online.com Sent: Thursday, April 23, 2026 9:22:24 PM Subject: Re: Digital Realty- Non Renewal
Neither solar or wind is particularly cost effective, even at scale.
Shane
On Apr 23, 2026, at 10:00 PM, Suresh Ramasubramanian < ops.lists@gmail.com> wrote:
And now thanks to the Iran war, I suspect they’ll all hurriedly transition to wind or solar or anything other than natural gas.
From: Shane Ronan via NANOG <nanog@lists.nanog.org> Date: Friday, 24 April 2026 at 6:51 AM To: North American Network Operators Group <nanog@lists.nanog.org> Cc: Shane Ronan <shane@ronan-online.com> Subject: Re: Digital Realty- Non Renewal
We've long surpassed the power available from the commercial power grid. MANY large scale data centers are using cogeneration with natural gas turbines. I don't however think they would be approved for that in the middle of downtown Chicago.
shane
On Thu, Apr 23, 2026 at 6:54 PM Matthew Petach via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 3:36 PM Christopher Morrow via NANOG < nanog@lists.nanog.org> wrote:
On Thu, Apr 23, 2026 at 5:32 PM Mike Hammett via NANOG <nanog@lists.nanog.org> wrote:
> but Cermak is a big building. They can't use up *THAT* much of it. Also, diversifying to tier 2 markets would probably help a lot not have so many eggs in one basket.
how much power, exactly, is landing in Cermak? do you think you could use all of that up with your set of 120kw NVidia racks?
What, nobody is putting shipping-container-sized micro nuclear reactors on the rooftops of the buildings to augment power capacity?
Come on, people, start thinking outside the box a little. ;)
Matt
(yes, yes, permitting, upgrading electrical wiring to handle 10MW coming in from a shipping container on the roof, not as trivial as it sounds...but still, I think we're coming up on the tail end of counting entirely on the power grid to deliver power to high-density compute facilities) _______________________________________________ NANOG mailing list
https://lists.nanog.org/archives/list/nanog@lists.nanog.org/message/KHRBBKCQ... _______________________________________________ NANOG mailing list
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participants (16)
-
Chris Adams -
Christopher Morrow -
Dale Carstensen -
Dorn Hetzel -
Javier J -
John Palmer -
Lucien Hoydic -
Matthew Petach -
Mike Hammett -
Mike Simpson -
Robert DeVita -
Shane Ronan -
sronan＠ronan-online.com -
Stephen Fulton -
Suresh Ramasubramanian -
Tom Beecher