Battery Storage in San Diego.
Energy Independence.

A single battery unit typically costs between $12,000 and $16,000 installed, depending on the brand and capacity. Most homes need 1–2 batteries for meaningful backup and savings. The 30% federal tax credit applies to battery storage when paired with solar, which can reduce your cost significantly.

A single battery (13–14 kWh) can power essential loads — refrigerator, lights, Wi-Fi, phone chargers, and a few outlets — for 10–12 hours. With two batteries, you can run most of your home for a full day or longer. If your solar is producing during the outage, the batteries recharge during the day for extended backup.

Under NEM 3.0, the value of solar energy exported to the grid has dropped significantly. Battery storage lets you store your excess solar production and use it during expensive peak evening hours (4–9 PM) instead of selling it back at a low rate. This maximizes the value of every kilowatt-hour your panels produce.

It depends on your priorities. Tesla Powerwall is great for whole-home backup and has excellent app integration. Enphase IQ is ideal if you already have Enphase microinverters. Franklin WH offers the most advanced energy management with circuit-level control. We’ll recommend the best option during your free consultation.

Yes. We retrofit battery storage onto existing solar systems regularly, regardless of who installed your panels. The process typically requires a sub-panel for backup circuits and an updated utility interconnection agreement. We handle all of this for you.

A standalone battery installation typically takes 1–2 days on-site after permits are approved. A combined solar + battery installation runs 2–4 days. Total project time from signed contract to commissioning is usually 3–6 weeks, including SDG&E approval and the city electrical inspection. We coordinate everything so you’re only without service for a brief switchover window.

It depends on your battery capacity and the loads you choose to back up. A single Tesla Powerwall 3 (13.5 kWh) typically runs essentials — refrigerator, lights, internet/WiFi, garage door, a few outlets, and a small AC unit — for roughly 12–24 hours. Adding a second battery doubles runtime or expands which loads stay on. We design the backup load panel during your free consultation to match what you actually need running.

Yes. As of 2023, the 30% federal Investment Tax Credit (Section 25D) applies to standalone battery storage of at least 3 kWh, even without solar. So whether you’re adding a battery to existing solar, installing both together, or installing only a battery, the federal credit reduces your cost by 30%. California also offers the SGIP rebate for batteries in some cases — we check eligibility during your quote.