Decarbonize Weekly DD008 — Why PJM Chose Gas for AI
📺 Decarbonize Deep Dive 008 | ~22 min
DEEP DIVE: The Gas Verdict — PJM Just Decided How AI Will Be Powered
On April 29, 2026, PJM Interconnection — the largest grid operator in North America — announced the results of the first cycle of its reformed interconnection queue. After four years of effective closure, 811 generation projects representing 220 gigawatts entered the queue. The composition is the story:
• 106 GW natural gas (48%)
• 67 GW battery storage (30%)
• 18 GW nuclear (8%)
• 15 GW stand-alone solar (7%)
• 9 GW solar-storage hybrid (4%)
• 5 GW wind (2%)
Combined with the parallel Texas behind-the-meter buildout — 58 GW of gas in planning, half of it dedicated to data centers on private grids that bypass the public grid entirely — this is the verdict on how American AI infrastructure will be powered through 2032. Not with geothermal. Not with small modular reactors. Not with renewables-plus-storage. With natural gas.
Key topics:
• The PJM Cycle 1 numbers and what they mean — first reformed queue with first-ready, first-served filtering
• Why gas wins on the five variables: speed of build, capacity factor, capital intensity, site control, federal regulatory environment
• Texas behind-the-meter — Pacifico's 7.7 GW GW Ranch, the Lancium / Crusoe / Stargate clusters, and the private-grid pattern
• Why the 67 GW of storage in the queue is mostly a complement to gas, not a replacement
• Why the 18 GW of nuclear is smaller than it sounds — uprates, restarts, aspirational SMR pipeline
• The state climate plan implications for Maryland, Virginia, New Jersey, Illinois — RPS targets calibrated against assumptions Cycle 1 has just broken
• The federal regulatory dismantling that locked the gas verdict — 2025 budget reconciliation, EPA 111(b) rollback, 45V cancellation, PTC/ITC acceleration removed
• The transatlantic split — EU Hydrogen Bank's €0.44/kg auction announced May 7 vs. US 45V cancellation
• Realistic 2026-2032 buildout projection — gas at 80-110 GW, storage 50-70 GW, solar 30-45 GW, then a sharp drop
• What this means for 2030 NDC math — roughly 100 Mt/yr of CO2 added to the power sector from AI load alone
• Three things to watch through end of 2026: PJM Cycle 2 composition, Texas BTM regulation, Maryland PSC response
The clean firm power story (geothermal, SMR, nuclear restarts) is real but second-tier in the 2026-2032 buildout window. AI training capacity needs to be online before any of those scale. PJM Cycle 1 is the math made visible.
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