Battery Storage Installation in San Jose and Santa Clara County. Built for NEM 3.0, outages, and real Bay Area rates.

No, provided your solar system isn't substantially modified at the same time. Per PG&E's NEM 2.0 Sunset FAQ, adding a battery to an existing NEM 2.0 solar interconnection does not trigger the Net Billing Tariff (NEM 3.0), as long as the solar array isn't expanded beyond a 10% or 1 kW increase. The battery is interconnected as a separate paired-storage application after permission to operate. For homeowners with a grandfathered NEM 2.0 export rate, adding storage is the single strongest way to capture more value from existing solar without losing that grandfathering. Cali Rollin Electric files the PG&E SNEM-PS interconnection paperwork as part of the install.

It depends on what you already have and what you're solving for. Tesla Powerwall 3 (13.5 kWh, 11.5 kW continuous, integrated DC-coupled solar inverter) is the strongest choice for new solar-plus-storage installs because it consolidates inverter and battery in one unit. Enphase IQ Battery 10C (10.08 kWh, 7.08 kW continuous, AC-coupled with grid-forming microinverters) is the best fit for retrofits onto existing Enphase microinverter solar systems and is the most modular option for scaling up in roughly 10 kWh increments. FranklinWH aPower 2 (15 kWh per unit, 10 kW continuous, 15-year and 60 MWh throughput warranty) is brand-agnostic (compatible with any PV inverter) and carries the longest warranty in the mainstream residential market. All three use LFP chemistry and are IP67 outdoor-rated. Cali Rollin Electric is a SPAN Certified Installer and installs all three brands directly under C-10 #1144031.

Very little is claimable by a new applicant in 2026, and we would rather say that plainly than quote a number that no longer exists. The federal 25D Residential Clean Energy Credit ended December 31, 2025 under the One Big Beautiful Bill Act, so systems completed after that date do not qualify. The SJCE EcoHome battery storage rebate closed to new applications on July 1, 2026. SGIP general-market residential storage funding is exhausted and moving to a waitlist, and the SGIP equity residential storage program is already waitlisted. PG&E's Residential Storage Initiative is invitation-based: PG&E or its administrator reaches out first to eligible customers on outage-impacted circuits, and no contractor can enroll you in it. One program that is still active is the Silicon Valley Power Smart Panel rebate, which applies to a qualifying smart electric panel installed in place of a main-service upgrade for SVP residential customers in the City of Santa Clara. We verify every program against the live utility rules at your estimate.

No, and we recommend strongly against quoting Powerwall 2 for any new install. Powerwall 2 was discontinued and recalled in November 2025. The CPSC-registered recall (approximately 10,500 US units sold November 2020 through December 2022) cites lithium-ion battery cells that can overheat and cause fire or burn injury. Tesla is remotely discharging affected units and replacing them at no cost. If you have an existing Powerwall 2 and were planning to add another, the right path is replacement, not expansion. The recall does not affect Powerwall 3, which uses different cells and is the current US residential offering.

Battery storage is one of the few residential electrical jobs where a published price range is close to meaningless, because the spread between an easy install and a hard one is enormous. The variables that actually move your number are usable capacity and how many units you stack, the brand and whether its inverter is integrated or sits behind existing PV, whether you are retrofitting onto matching solar hardware or building new, the conduit and conductor distance between the battery, the main panel, and the meter, whether your main panel has room or needs a subpanel or an upgrade first, and whether you want essential-circuit backup or whole-home load management. Residential ESS permits run $500 to $1,000 depending on jurisdiction. Rather than publish a figure that would be wrong for most homes, our team quotes in writing after a free on-site assessment, with the conduit route, backup circuits, and permit line itemized.

All three brands we install (Powerwall 3, Enphase IQ Battery 10C, FranklinWH aPower 2) are IP67 outdoor-rated and use LFP chemistry, which suits the Bay Area climate well. Garage walls, exterior side walls, and outdoor pads are all viable. California Fire Code 1207 and NFPA 855 require a minimum 3-foot separation from doors, operable windows, HVAC inlets, and other openings into habitable space, plus 10 feet from vegetation. Some jurisdictions also limit the aggregate kWh installed inside an attached garage. We confirm the setbacks against your local fire department's requirements at the site assessment and route every install around them.

Effective March 1, 2026, PG&E added a fixed monthly Base Services Charge (roughly $24 a month for most residential customers, about $6 for CARE, and about $12 for FERA and Affordable Housing) paired with a per-kWh reduction of roughly $0.05 to $0.07. Directionally, that compresses the value of time-of-use arbitrage slightly, because export and avoided-import rates both fall under the new structure. It does not fundamentally change the case for battery storage, which is still driven by outage resilience, NEM 3.0 self-consumption economics, and preserving grandfathered NEM 2.0 terms for existing solar owners. We size systems against your actual usage and rate plan, not against a generic payback claim.

Not for every install, but it solves a specific problem well. A battery only backs up the circuits wired into the backup load center. For partial-home backup (refrigerator, lights, internet, one HVAC zone), a standard backup load center works fine. For whole-home backup, where the battery dynamically prioritizes loads while the grid is down, a smart panel such as SPAN replaces your main panel and lets you control which circuits run and in what order on stored energy. Cali Rollin Electric is a SPAN Certified Installer and can pair SPAN with Powerwall 3, IQ Battery 10C, or aPower 2. We assess whether SPAN earns its cost at the estimate, based on your actual backup priorities.

Yes, always. Every residential energy storage system in Santa Clara County requires an electrical permit, plan check, and final inspection. The 2025 California Energy Code (Title 24 Part 6, section 150.0(s)) makes new single-family homes with electric service above 125A battery-storage ready by default. NEC Article 706 governs the installation: a readily accessible disconnect within sight, an externally accessible emergency shutdown, DC overcurrent protection, 30 inch by 36 inch working clearance, and eight required nameplate data points. Cali Rollin Electric pulls the permit, files the PG&E paired-storage interconnection, and coordinates the city inspection, so you do not navigate any of it.

Yes. A storage-only install is common for two reasons: outage backup, and charging from the grid during cheap off-peak hours to cover the 4 PM to 9 PM peak. The interconnection path differs. With no on-site generation there is no paired-storage net-metering application, so the system is filed as a non-export or limited-export interconnection instead, and the battery is programmed so it never pushes energy back onto the grid. Our team files whichever application your configuration requires. If solar is on your roadmap, tell us at the assessment and we will size the gateway and conductors so the array drops in later without redoing the electrical work.

It depends entirely on what you back up. A critical-loads setup (refrigerator, lights, internet, garage door, a few outlets, and a furnace fan) typically draws somewhere around 3 to 6 kWh a day, so a single 13.5 kWh battery generally carries those loads for a day or two on stored energy alone, and indefinitely when paired solar recharges it each morning. Add central air conditioning, an electric range, or an electric water heater to the backup panel and the same battery may last only a few hours. That trade-off is the whole reason we start with a backup-priority conversation rather than a battery model, and it is where a SPAN smart panel or a second battery earns its place.

Very little. All three brands we install are sealed LFP units with no fluids to check and no scheduled service intervals. Firmware updates arrive over your Wi-Fi connection, and the manufacturer app reports state of charge, throughput, and any fault codes. The practical homeowner tasks are keeping the code-required clearances clear of stored items and vegetation, keeping the Wi-Fi connection alive so updates and monitoring keep working, and calling us if a fault code appears or the unit stops carrying its backup loads. We also recommend a visual check of the disconnect, conduit, and mounting hardware whenever you have other electrical work done.