ADU Battery Storage in Yolo County, California

Pairing a battery with your ADU solar system in Yolo County dramatically improves ROI under NEM 3.0. PG&E/Valley Clean Energy customers save more by storing midday solar and discharging during expensive peak hours.

Why Batteries Make Sense in Yolo County

Under NEM 3.0, exporting to the grid pays only $0.05–$0.10/kWh while PG&E retail rates exceed $0.40/kWh during peak. A battery captures that arbitrage instead of giving it back to the utility.

  • Self-consumption: 70–95% with a single 13.5 kWh battery
  • Backup power during grid outages and PSPS events
  • 30% federal Investment Tax Credit applies to standalone batteries ≥3 kWh
  • SGIP rebates available to qualifying PG&E customers

Battery Cost Across Yolo County

Adding a single 13.5 kWh battery to your ADU project in Yolo County typically adds $9,000–$13,000 cash. After the 30% federal ITC, effective cost drops to $6,300–$9,100. SGIP rebates may further reduce cost.

FAQs

Are batteries required for ADUs in Yolo County?

No — California Title 24 does not mandate batteries on ADUs in Yolo County. They're optional but increasingly common under NEM 3.0.

Which battery is most popular in Yolo County?

Tesla Powerwall 3 leads thanks to its integrated inverter and 13.5 kWh capacity. Enphase IQ Battery 5P is preferred for modular sizing on smaller ADU systems.

Yolo County