June 29, 2026
Gridlocked and gaslit
US Grid Constraints: Towards 40GW+ of Behind-the-Meter Datacenter by 2028?
AI’s power grab could force tech giants off the grid — and commenters are already melting down
TLDR: A new forecast says the US power grid may be too crowded for the coming AI datacenter surge, pushing Big Tech to build their own on-site power plants by 2028. Commenters are split between climate panic, fairness arguments over who should pay, and one blunt question: if clean power is cheaper, why all the gas?
The big claim in this analysis is simple: America may not have enough electric grid capacity to keep up with the wild AI datacenter boom, so tech giants could start building huge power systems on their own property instead. In plain English, the companies training AI may stop waiting for the public power system and bring in their own gas-powered backup-style plants at massive scale. The forecast says this could become the norm for more than half of new US datacenters by 2028, and that has the comment section in full fight mode.
The loudest reaction? Pure horror. One commenter called it an “absolute ecological disaster” and basically begged for the AI bubble to burst before America becomes one giant server room belching fumes. Another person zoomed in on the awkward long-term question: if companies rush to build all these gas turbines now, are we creating tomorrow’s stranded junk pile when the tech changes or demand cools off? That’s where the anxiety really kicks in — this isn’t just about keeping the lights on, it’s about who gets stuck with the bill later.
But not everyone was clutching pearls. One of the spiciest replies argued that if datacenters want a ridiculous amount of power, then good — let them pay for it themselves instead of hogging a shared system used by everyone else. And then came the brutally direct question that sums up the whole vibe: if renewable energy is supposedly cheaper, why are they burning gas? No memes beat that one-liner, because it landed like a comment-section mic drop.
Key Points
- •The article forecasts US datacenter buildout increasing from 21GW in 2026 to 84GW by 2030.
- •It projects that behind-the-meter power will supply well over half of new US datacenters from 2028 onward.
- •The article estimates the total addressable market for datacenter BTM equipment will exceed 50GW per year by 2029.
- •Its model forecasts roughly 15GW of net-new ELCC capacity added annually, rising toward more than 20GW by the end of the decade.
- •The article says available grid headroom approaches zero and turns negative by 2027, making generation and transmission major bottlenecks for grid-connected datacenter growth.