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. California’s SGIP rebate can offset battery cost when you qualify, and pairing storage with solar on our pre-paid lease keeps your effective cost low.

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.

Not by itself. A standard battery gives you backup during outages while you stay connected to SDG&E — that’s a hybrid setup, and for most homes with grid access it’s the smarter, cheaper choice. Going fully off-grid means disconnecting from the utility entirely, which takes a much larger battery bank (3–7 days of autonomy), an off-grid inverter, and a backup generator. If you own a remote backcountry parcel or simply want total energy independence, that’s our dedicated off-grid solar service.

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. California’s SGIP (Self-Generation Incentive Program) offers rebates for home battery storage when you qualify, with the amount depending on your equipment and situation. Whether you’re adding a battery to existing solar, installing both together, or installing only a battery, we check your SGIP eligibility and fold any rebate into your pricing during your quote.