The grid is the last wall
Inside the fence, everything a data centre needs can be bought, eventually. Outside it, the power has to come from somewhere, and every way of getting more is measured in years. An engraved walk from the data hall out along the line to the gas turbines, the reopened reactor and the geothermal wells that buyers are now paying for, then country by country: where the wall is highest.
trying to answer →What becomes scarce when intelligence becomes cheap?Where does value move when intelligence becomes commoditized?
The constraint in AI hardware has been walking outward for three years: from the chip to its memory, to the package, to the rack, to the building. This is where it stops walking, because past the fence nothing can be ordered on a timescale that matters to a model. Scroll, and follow the line out.
inside the fence
Everything inside the fence can be bought
So a new data centre starts from one number, how much power can I get, and everything else is drawn around it. Two to four years from land to first power, at roughly ten million dollars a megawatt.
the substation
The transformer is the first thing money cannot hurry
Power transformers averaged 128 weeks to deliver and generator step-up transformers 144 weeks in 2025; substation transformers passed 160 weeks in 2026. US transformer lead times reached as long as four years by 2026.
POWER Magazine, Transformers in 2026: shortage, scramble, or self-inflicted crisis? · pv magazine USA, transformer lead times extend to four years (11 May 2026)
the line
Then the queue to connect at all
Nobody queued for interconnection when a large site was 30 MW and utilities had spare capacity. At gigawatt scale the interconnection study decides the schedule, and it runs in years while model generations run in months.
LBNL, Queued Up — interconnection queues · IEA, Energy and AI (2025)
2026-07-23
Gas: a turbine ordered now arrives around 2031
GE Vernova's gas turbine backlog reaches 116 GW, and it is taking reservations for 2031 delivery. A turbine ordered now arrives in about five years. Anything with a shorter lead time gets solved first, which is why the constraint ends up here.
Utility Dive, GE Vernova gas turbine backlog climbs to 116 GW (2026)
2024-09-20
Nuclear: reopen what was shut
Constellation rises 22% on a 20-year, 835 MW deal to restart a Three Mile Island reactor for Microsoft. A data centre buyer pays to reopen a shut nuclear unit rather than wait in the connection queue. Power becomes something bought years ahead.
CNBC, Constellation Energy to restart Three Mile Island (20 Sep 2024)
2026-09-01
Geothermal: drill for a new kind of plant
Google agrees to buy 396 MW of enhanced geothermal power from Fervo for a Utah data centre. At the end of the path the constraint is still the connection, and buyers now pay for new kinds of generation to get one.
the whole wait
Every one of these waits outlasts several models
Interconnection queues run four to seven years while model generations run months.
each blue tick: one more frontier model shipped while you wait
LBNL, Queued Up: interconnection queues · Utility Dive, GE Vernova gas turbine backlog climbs to 116 GW (2026)
Where the wall is highest
The wall is not the same height everywhere. Whether a place is short of power depends on how much more its data centres want, how fast it can build, and above all how long it takes to connect what it builds. Some places have power to spare and are short of something else. Others have the plants on paper and can’t plug them in.
the world
415 → 945 TWh a year of data-centre electricity, 2024 → 2030
The IEA expects data centres to use more than twice as much electricity by 2030, slightly more than Japan uses today. The US and China account for nearly 80% of the growth. About half of it is expected to be met by renewables, and gas adds 175 TWh, mostly in the US.
data centres now expected by 2030, on one scale
United States
the wall is hereData centres were 4.4% of US electricity in 2023; by 2028 they could be 6.7 to 12%.
Building: A record 86 GW of new plants is planned for 2026, mostly solar and batteries.
The catch: 1,312 GW of plants are waiting in queues to connect, and the median project built in 2025 waited more than five years. The power exists on paper; the connection is the wall.
IEA, Energy and AI: energy demand from AI (2025) · Berkeley Lab, 2024 United States Data Center Energy Usage Report · Enerdata, US EIA forecasts record 86 GW of capacity additions in 2026 · Berkeley Lab, Queued Up: 2026 Edition
China
power to spareChina used 10,400 TWh in 2025. Its data centres’ whole increase to 2030 is under 2% of that.
Building: More than 430 GW of wind and solar in 2025 alone, a record.
The catch: Power is not China’s wall. Its wall is the chips, which export controls keep out of reach.
IEA, Energy and AI: energy demand from AI (2025) · Gov.cn, China’s power consumption hits 10-trillion-kWh milestone in 2025 (17 Jan 2026) · Gov.cn, China’s newly installed wind and solar capacity up 22% in 2025 (12 Feb 2026)
Europe
tightThe smallest rise of the big regions: more than 45 TWh by 2030.
Building: Renewables, slowly; grids were built for flat demand.
The catch: Connection waits run to years in the main hubs, and Dublin and Amsterdam have both paused new data centres at points.
IEA, Energy and AI: energy demand from AI (2025) · Norwegian SciTech News, Data centres’ demand for electricity (Nov 2025)
Japan
tightFrom 19 TWh in 2024 to 57 to 66 TWh by 2034, by Wood Mackenzie’s estimate.
Building: Mostly gas and coal around Tokyo and Osaka, where the data centres are.
The catch: Reserve margins are above 15%, so no immediate shortage, but a new gas plant takes seven to ten years.
IEA, Energy and AI: energy demand from AI (2025) · DCD, Data center energy consumption in Japan to triple by 2034 (Wood Mackenzie)
India
tightCapacity from about 1.2 GW in 2025 to almost 10 GW by 2030.
Building: Fast-growing solar, with about $200bn of data-centre investment hoped for by 2030.
The catch: The hubs are concentrated in a few states, whose grids take the whole load.
Outlook Business, Data centre boom pushes India to rethink power planning (8 Apr 2026)
Ireland
the wall is hereData centres used 22% of Ireland’s metered electricity in 2024, up from 5% in 2015.
Building: Since December 2025, a new data centre has to bring its own on-site generation and match at least 80% of its demand with new Irish renewables.
The catch: The first country where the grid said no, and then wrote the price of yes.
CSO, Data centres metered electricity consumption 2024 · CRU, decision on new electricity connection policy for data centres (Dec 2025)
The Gulf
power to spareAbu Dhabi’s planned 5 GW UAE–US AI campus; its first 200 MW goes live in 2026.
Building: Nuclear from Barakah, solar and gas in the UAE; Saudi Arabia’s Humain targets 1.9 GW by 2030 on land with access to 14 GW of power.
The catch: Cheap power and fast permits. The wall here is access to the chips, set by US export licences, and water for cooling in the desert.
DCD, Companies behind UAE Stargate offer additional details · Blackridge Research, Middle East data centre projects 2026
The Nordics
power to spareNorway’s data centres could use 6 to 8 TWh by 2030.
Building: Hydropower already makes over 90% of Norway’s electricity, with a surplus to spare.
The catch: Among the least congested grids in Europe; the limit is distance from users, and a cold climate is a cooling bonus.
Norwegian SciTech News, Data centres’ demand for electricity (Nov 2025)
Read down the stamps and a pattern shows. China and the Gulf have power to spare and are short of chips, which export rules decide. The US has the chips and the money, and its wall is the queue to connect. Ireland hit the wall first and turned it into a rule: bring your own power. For anyone choosing where to build, location is no longer a real-estate question. It decides which wall you meet.