Solar and storage cut wholesale power prices 42% in Texas and 51% in California

A new SEIA analysis found average wholesale electricity prices fell 42% in Texas and 51% in California between summer 2021 and summer 2026. Solar generation grew 421% in Texas and 90% in California over five years, while battery storage capacity rose more than 26-fold and nearly sevenfold respectively.

• Texas wholesale prices fell from $54.97 to $31.77/MWh despite 30% demand growth
• California prices dropped from $77.54 to $38.32/MWh
• Solar and storage saved Texans about $3.55B and Californians $2.5B in summer 2026
• Residential generation costs fell 4% in Texas and 10% in California