Solar & Battery Storage in Danville, CA
Solar-ready panels, battery backup and SPAN smart panels — so your home keeps power when the grid goes down and you get the most from solar. Designed to NEC 705 interconnection code.
- Tesla Powerwall & battery backup
- SPAN smart panels
- Solar-ready service upgrades
- NEC 705.12 (120% rule) done right
- Backup sized around your must-run circuits
Licensed C-10 · CSLB #1114918 · Permitted & inspected
Certified & authorized installer
Solar & Battery Storage in Danville — done right
Every job in Danville starts with a free assessment and your home's Electrical Score, is sized by a real NEC load calculation, and is permitted and inspected in Contra Costa County. No guesswork, no cutting corners.
Tesla Powerwall & battery backup
SPAN smart panels
Solar-ready service upgrades
NEC 705.12 (120% rule) done right
Backup sized around your must-run circuits
Your local solar & battery team in Contra Costa County
Astral is a licensed C-10 electrical contractor. We know the local building departments and utilities, pull every permit, and stand behind the work. Danville homeowners get the same licensed, warrantied solar & battery we'd put in our own home.
Solar & Battery Storage nearby
Other electrical services in Danville
Not sure what your Danville home needs?
Start with your home's Electrical Score — a licensed C-10 electrician grades your panel, service and wiring 0–100 for safety and capacity. Know before you buy an EV, add solar, or sell.
solar & battery in Danville — FAQ
Do I need a panel upgrade for a battery in Danville?+
Often yes — battery and solar interconnections must meet NEC 705.12 (the 120% rule). We check your busbar rating and, if needed, upgrade to a solar-ready 200A panel so it's done once, correctly.
Can you add backup without full solar?+
Yes. A Tesla Powerwall or battery can back up your essential circuits with or without solar. We size it around your must-run loads — fridge, Wi-Fi, medical, well pump.
Solar & Battery Storage in Danville?
Book your free assessment with a licensed C-10 electrician today.