Financing solar and battery storage — and why ownership matters

Own it, do not lease it

A lease or power purchase agreement means the provider owns the equipment on your roof. Three consequences follow, and they are rarely explained clearly at the kitchen table.

• A UCC-1 fixture filing goes on record. The provider records its interest in the equipment, which can complicate a sale.
• It complicates selling. Your buyer must qualify to assume the agreement or you must buy it out at closing. This regularly delays and occasionally kills Orange County transactions.
• Escalator clauses. Many agreements increase the payment annually, sometimes faster than utility rates have actually risen.

Buying the system with a HELOC avoids all three. You own the equipment, nothing goes on title beyond your own lien, and there is nothing for a buyer to assume.

Solar and battery costs in Los Angeles

Los Angeles County is split between two very different solar regimes, and which one you are in matters more than the panel brand. Inside the city, LADWP is a municipal utility outside the state commission’s jurisdiction: it still credits exports at the full retail rate, and the credits don’t expire. The rest of the county is Southern California Edison territory under the state’s net billing tariff, which pays exports at avoided cost and makes a battery close to essential to the economics. One installer’s 2026 estimate puts payback at seven to nine years under LADWP against ten to thirteen for panels alone under Edison. LADBS issues rooftop permits for systems up to 10 kW on one- and two-family homes online without plan check; arrays in Very High fire-hazard zones fall under a separate Fire Department requirement.

Sources: CPUC net billing; LADWP net metering summary. Checked October 2026.

Batteries and backup: what the brands cost in Southern California

Battery prices have settled into a narrow band, and the brand matters less than the installer and the rebate tier. Installed figures below are 2026 Southern California quotes from installers’ published guides, before any rebate.

• Tesla Powerwall 3 (13.5 kWh, built-in solar inverter): about $12,000 to $18,500 installed for one unit, including the Backup Gateway. The unit itself is $8,500–$9,500; the rest is switchgear, labor and permits.
• Enphase IQ Battery 10C (10 kWh): about $13,000 to $18,000 installed with the system controller — the usual pairing with Enphase microinverters.
• Generac PWRcell (9–18 kWh, modular): about $12,000 to $20,000 installed depending on capacity.
• FranklinWH aPower: priced with the Powerwall and Enphase systems above; quotes vary more by installer than by product.
• Standby generator (Generac or Kohler, 22 kW, natural gas): about $8,000 to $16,000 installed with the transfer switch, gas line and permit. No solar required, no daily cycling, and a fuel bill when it runs.
• Your car. A Tesla Cybertruck or new Model 3/Y with Powershare, a Ford F-150 Lightning, a GM EV truck or SUV, or a Kia EV9 can back up the house through that brand’s charger and a transfer switch — a 100 kWh battery you already own. How vehicle-to-home works and what it needs.

Rebates change the arithmetic for some households, but most SGIP budgets are spent. As of October 2026 the program’s own metrics show the small-residential ($150 per kWh) and Equity Resiliency ($1,000 per kWh) budgets closed, and the Residential Solar and Storage Equity budget at $1,100 per kWh for income-qualified households — open for customers of publicly owned utilities such as LADWP and Anaheim, waitlisted for SCE customers. Your installer files the application; ask which budget, if any, applies before you sign, and don’t price the battery on a rebate that is waitlisted.

Tesla, Powerwall, Enphase, Generac, Kohler and FranklinWH are trademarks of their owners. We have no affiliation with any manufacturer; names are used to identify products.

The Tesla Solar Roof is discontinued

Tesla stopped taking Solar Roof orders on August 20, 2026 and removed the product from its site, after roughly 3,000 installations nationwide in seven years. If you were quoted one, the comparison that matters now is a new roof plus conventional panels, which runs about $29,000 to $43,000 installed in California against the $85,000 to $125,000 that a Solar Roof cost on a typical home.

Adding an EV to the plan

If an electric car is in the household or coming, the panel upgrade that solar and a battery need is the one the charger needs too, and the permit is pulled once. What the house needs before the EV arrives puts the six steps in order; the sequence that saves money is panel, solar, battery, charger.

Re-roof first, or solar first?

Roof first, if the roof has less than ten years left. Removing and reinstalling a solar array to replace the roof underneath it is a separate line item — get it quoted alongside the roof — and a roof warranty is generally void where panels were installed over a surface the roofer didn’t prepare. Where the roof is sound, solar and battery go on together, and the panel upgrade that an EV charger needs is often done in the same visit. EV charging and panel upgrades covers that side; roofs the other.

Sources: NRG Clean Power, Powerwall 3 cost in California (2026); Helios Energy, Enphase IQ 10C installed cost; HomeGuide, Generac PWRcell cost; Alternative Power, Generac standby installed cost; SGIP program metrics (10/18/2026); NRG Clean Power, Tesla Solar Roof discontinued. Checked October 2026.

Buying out an existing lease

If you already have a lease or PPA, request a buyout figure. Where it is reasonable relative to the remaining term, funding the buyout with a HELOC can clear the UCC filing, removes the transfer problem, and converts an escalating payment into owned equipment. Whether it pays depends on the specific numbers, and it is worth modeling properly rather than assuming either way.