Solar System Sizing Guide for East Bay Homes (2026)

Residential rooftop solar panel installation on a home in an East Bay California neighborhood on a sunny day.

Learn how to size a solar system based on your annual kWh usage, roof production, and future upgrades like EV chargers or battery backup. A practical 2026 guide for Dublin, Pleasanton, Livermore, San Ramon, Castro Valley, and East Bay homeowners.