Battery Installation · Central Valley, CA
Whole-home battery backup with built-in solar inverter — the most popular home battery in the Central Valley.
Licensed contractor #1063682. Serving 94 cities across Fresno, Madera, Kings, Tulare, and Merced counties. Call (559) 355-1025.
The Tesla Powerwall 3 is a 13.5 kWh lithium iron phosphate home battery with a built-in 11.5 kW solar inverter. It stores solar energy for evening use, provides whole-home backup during outages, and integrates with the Tesla app for real-time monitoring. A single Powerwall 3 can back up most Central Valley homes; two units cover high-load households with EV charging.
One Powerwall 3 (13.5 kWh) covers essential loads for 12–24 hours for most Central Valley homes. Two units are recommended for whole-home backup including AC, or for households with EV charging. Robbins Energy sizes battery systems based on your actual PG&E usage data.
Powerwall 3 includes a built-in solar inverter — for new installations, no separate string inverter is needed. For retrofits onto existing solar systems, a Gateway 2 or Backup Switch is required. Robbins Energy handles both new installs and retrofits.
Powerwall 3 supports whole-home backup — not just a critical loads panel. During a PG&E outage, your home transitions to battery power in under 20 milliseconds. Storm Watch mode monitors PG&E outage alerts and pre-charges the battery before a PSPS event.
Powerwall 3 installation requires a 200-amp main panel. Homes with 100-amp service (common in older Fresno, Madera, and Tulare County neighborhoods) need a panel upgrade first. Robbins Energy performs panel upgrades as part of the installation.
Battery storage installations require a building permit and PG&E interconnection approval in all Central Valley jurisdictions. Permit timelines vary: Fresno and Clovis typically 2–3 weeks; rural county jurisdictions 3–5 weeks. Robbins Energy handles all permitting.
Licensed contractor #1063682. We handle the full project — design, permitting, installation, PG&E interconnection, and monitoring setup. No subcontractors. Same crew from start to finish.
Robbins Energy installs Tesla Powerwall 3 across 94 cities in the Central Valley. Select your city for local installation details, utility information, and permitting specifics.
Yes. Robbins Energy installs Tesla Powerwall 3 throughout Fresno, Clovis, Madera, Visalia, and all 94 cities in our service area. We are a licensed electrical contractor (#1063682) serving Fresno, Madera, Kings, Tulare, and Merced counties.
Tesla Powerwall 3 installation cost depends on system size, electrical panel condition, and any required upgrades. Robbins Energy provides free, no-obligation quotes. Call (559) 355-1025 or submit a request at 559solarbattery.com/quote.
Most Tesla Powerwall 3 installations take 1–2 days once permits are approved. Permit timelines vary by jurisdiction: Fresno and Clovis typically 2–3 weeks; rural county jurisdictions 3–5 weeks. Robbins Energy handles all permitting.
Yes. Tesla Powerwall 3 can be retrofitted onto most existing solar systems. Powerwall 3 includes a built-in solar inverter — for new installations, no separate string inverter is needed. For retrofits onto existing solar systems, a Gateway 2 or Backup Switch is required. Robbins Energy handles both new installs and retrofits.
10-year warranty Robbins Energy provides a workmanship warranty on all installations and handles warranty claims on your behalf.
Related Services & Pages