Environment · September 19

Energy demand, water use, emissions, data centers, grids, chips, and local siting conflicts.

Source-linked items from the current edition for this beat.

Today's environment items · September 19

Current edition

Source-linked items from the current edition. Story dates are shown separately from the September 19 edition date.

September 19 · 2025 DC electricity

IEA: data-centre electricity demand soared 17% in 2025; AI-focused sites faster still, vs 3% global electricity demand.

Observed-2025 layer — not earlier IEA 2030 TWh paths; not LBNL share.

IEA
September 19 · Capex and offtake

Five large tech firms spent more than $400 billion in 2025, set for +75% in 2026; tech ~40% of 2025 corporate renewable PPAs; SMR conditional offtake 25 → 45 GW.

Bottleneck and offtake response — not ERCOT Batch Zero; not PJM ride-through.

IEA
September 19 · Onsite gas and batteries

Slow grid connections push U.S. onsite natural-gas projects; many still early-stage on IEA satellite tracking; onsite batteries critical for AI demand swings.

Near-term design response — not Electricity 2026 Grids queue totals.

IEA