AI is running out of Power

Watch on YouTube ↗  |  September 06, 2026 at 11:13  |  52:23  |  SemiAnalysis
Speakers
Dylan Patel — Founder, CEO, and Chief Analyst at SemiAnalysis

Summary

The video argues that after chips, power is the next major AI bottleneck, especially firm grid capacity. It explains why AI datacenter developers are moving to behind-the-meter gas generation despite higher cost, because early power can be worth billions. It contrasts ERCOT and PJM market outcomes and says the AI supply chain is expanding into turbines, transformers, fuel cells and skilled labor.

  • SemiAnalysis forecasts US AI datacenter power demand rising from about 3 GW in 2023 to 28+ GW by 2026 and 84 GW by 2030.
  • Grid interconnection queues are clogged with speculative requests, and available grid headroom is approaching zero before turning negative by 2027.
  • xAI's Colossus used rented truck-mounted turbines and engines, making behind-the-meter generation the template for the industry.
  • Behind-the-meter power is not cheaper than grid power; it is a timing arbitrage because six months of AI cluster revenue can be worth about a billion dollars.
  • Labor shortages in turbine manufacturing and specialized casting are a hard physical limit on the buildout.
  • PJM capacity market prices rose 9.3x due to simulation and forecasting issues, while ERCOT's energy-only market kept household prices roughly stable.
  • The AI supply chain is expanding from chips to gas turbines, fuel cells, engines, transformers, substations, switchgear and rare earths.
Ideas
Dylan Patel Founder, CEO, and Chief Analyst at SemiAnalysis 14:51
Doosan Enerbility booked large xAI order.
Doosan Enerbility timed its H-class turbine launch to the AI datacenter buildout and booked a 1.9-gigawatt order to serve xAI, making it a direct beneficiary of the scramble for onsite gas generation.
Dylan Patel Founder, CEO, and Chief Analyst at SemiAnalysis 15:08
Wärtsilä wins marine-to-AI power contracts.
Wärtsilä has converted its marine engine franchise into AI datacenter power, signing 800 megawatts of US datacenter contracts. That gives it a differentiated demand driver from behind-the-meter reciprocating engine deployments.
Dylan Patel Founder, CEO, and Chief Analyst at SemiAnalysis 16:08
Aeroderivative gas turbines are datacenter preferred.
Aeroderivative gas turbines are the most interesting datacenter power category because they ramp from cold to full output in five to ten minutes, can later serve as emergency backup once grid power arrives, and require limited headcount compared with many small engines. GE Vernova, Siemens Energy and Mitsubishi Power are exposed through their aero-derived turbine products.
Dylan Patel Founder, CEO, and Chief Analyst at SemiAnalysis 18:14
Bloom fuel cells have permitting advantage.
Bloom Energy solid-oxide fuel cells have no combustion, which dramatically simplifies EPA air permitting and enables fast installation near population centers. The tradeoff is roughly double turbine capital cost and short stack life, so this is a permitting and speed-driven setup rather than a clear cheapest-power win.
Dylan Patel Founder, CEO, and Chief Analyst at SemiAnalysis 28:28
Turbine casting houses are supply bottleneck.
The labor constraint does not mainly bottleneck datacenter operators; it bites upstream at the four Western turbine blade and vane casting houses: Precision Castparts, Howmet Aerospace, Consolidated Precision Products and Doncasters. These suppliers are small relative to their customers and face a hard physical limit on expansion, creating potential bottleneck pricing power as demand scales.
Dylan Patel Founder, CEO, and Chief Analyst at SemiAnalysis 45:22
Power equipment becomes AI bottleneck.
The AI supply chain is expanding beyond chips into heavy industrial power equipment: gas turbines, fuel cells, reciprocating engines, transformers, switchgear, high-voltage breakers, substations, power electronics and cooling systems. Since power is the gatekeeper for AI infrastructure, the winners may also be companies that can deliver the equipment needed to power chips, especially where lead times make availability a strategic bottleneck.
Dylan Patel Founder, CEO, and Chief Analyst at SemiAnalysis 49:19
Natural gas is AI's bridge fuel.
For firm 24/7 gigawatt-scale power on near-term timelines, renewables and batteries cannot yet replace dispatchable generation. Natural gas may become the bridge fuel that allows AI infrastructure to grow while the grid and cleaner firm resources catch up.
Dylan Patel Founder, CEO, and Chief Analyst at SemiAnalysis 51:16
Behind-the-meter power market grows massively.
SemiAnalysis expects behind-the-meter generation to power well over half of new US datacenters from 2028 onward, with the equipment market for datacenter behind-the-meter solutions crossing 50 gigawatts per year by 2029. This makes onsite power one of the highest-growth parts of the AI buildout.
Up Next

This SemiAnalysis video, published September 06, 2026, features Dylan Patel discussing 034020.KS, WRTBY, GEV, ENR.DE, Mitsubishi Power, BE, HWM, XLI, Transformers, Switchgear, UNG, Behind-the-meter power generation. 8 trade ideas extracted by AI with direction and confidence scoring.

Speakers: Dylan Patel  · Tickers: 034020.KS, WRTBY, GEV, ENR.DE, Mitsubishi Power, BE, HWM, XLI, Transformers, Switchgear, UNG, Behind-the-meter power generation