
What's Happening To Wholesale Electricity Prices? (construction-physics.com) 86
Transmission congestion spreads are widening in most Independent System Operators and Regional Transmission Organizations, particularly in PJM, SPP, and NYISO, where bottlenecks increasingly prevent access to cheaper generation. California's CAISO stands alone among major grid operators as wholesale prices remain flat or decline in 2025 despite natural gas volatility. The cheapest wholesale electricity continues to trade in SPP's Oklahoma-Kansas region at $16-17 per megawatt-hour.