Tesla Powerwall vs Enphase IQ Battery vs FranklinWH in Southern California

All three are credible home batteries, and for most Southern California homeowners the brand matters less than three other things: how much backup you actually need, whether your solar is owned or leased, and which rebate or program your home qualifies for. Tesla Powerwall is an all-in-one AC-coupled unit with its own inverter and app. Enphase IQ Batteries are modular and pair naturally with microinverter solar. FranklinWH uses a separate gateway device to manage the home, the grid, solar and sometimes a generator. Apollo Home Power LLC takes a different route: it serves California homeowners with LiFePO4 battery backup installed through a vetted installer network and funded through California's Self-Generation Incentive Program (SGIP) and other state and federal rebates.

The short version: how the three differ

• Tesla Powerwall — an integrated battery and inverter in one enclosure, controlled through a single consumer app. It is widely installed, so most regions have multiple certified installers, which matters for service later.
• Enphase IQ Battery — modular, so capacity is added in increments, and designed around the same microinverter ecosystem many existing homes already have. If your roof already runs Enphase microinverters, the monitoring and the control logic stay in one place.
• FranklinWH — a battery plus a separate gateway that sits between the grid, the solar, the loads and (optionally) a generator. Homeowners who want generator integration or more granular load management often shortlist it.

All three use lithium chemistries, all three can run selected circuits during an outage, and all three can be programmed to charge when power is cheap and discharge when it is expensive. Capacity, output and warranty terms change by model year, so check the current spec sheet and the current warranty document before you compare numbers.

What actually matters in Southern California

Time-of-use rates, not brand badges

Most storage savings in SCE and SDG&E territory come from shifting consumption: charging during cheap off-peak hours and discharging during the expensive late-afternoon-to-evening peak window. Apollo Home Power explains this as the core of how battery savings work — charge off-peak, discharge during the peak window. Exact charge and discharge windows differ by utility, so do not assume one schedule fits both SCE and SDG&E. Any of the three brands can do this if it is programmed correctly for your rate.

Your solar billing plan

If you are on an older net metering arrangement, exports credit close to one-for-one. Under the newer solar billing plan, exports return far less than one-for-one, which is why self-consumption with a battery has become the point rather than selling power back. A homeowner blaming a battery for a high bill is frequently on a newer export rate — worth checking before you blame hardware.

Owned vs leased solar

This is the detail that quietly decides your options. A battery can only be DC- or AC-coupled directly to a solar array the homeowner owns outright, with ownership documentation. Apollo Home Power states that connecting a leased or financed solar system would void both the solar and the battery warranties. Where a direct connection is not possible, the battery can still charge off-peak from the grid during the same daytime hours solar produces, so the two work in parallel.

Backup scope: "whole home" is often a sales phrase

Ask every installer, for every brand, exactly which circuits stay live during an outage and what the continuous backup output is. Apollo Home Power is explicit about this for its own systems: they provide backup during outages but do not export to the grid, and backup output is approximately 33A, covering roughly six to eight critical circuits — not an entire 200A panel. A single battery of any brand rarely runs central air conditioning, an EV charger and a pool pump at once.

Siting, heat and your AHJ

Batteries are most commonly installed outside the house or garage, and some authorities having jurisdiction do not allow garage installation at all for code and safety reasons. In inland Southern California, shade and clearance matter. If you have an HOA architectural committee, you will need schematics and dimensions; Apollo Home Power can supply those for its systems. Batteries also cannot be painted, for safety and code reasons, so plan for how the unit will look.

Permission to Operate

Whichever brand you choose, the utility — not the city and not the installer — issues Permission to Operate after installation, a passed AHJ inspection, an interconnection application, utility review and any meter work. Apollo Home Power reports PTO typically arrives one to four weeks after inspection, with delays usually caused by paperwork or utility backlog.

Questions to ask any battery installer

1. Which specific circuits will be backed up, and what is the continuous backup output in amps?
2. Is my solar owned outright, and if not, how does that change the design?
3. Which rate plan will I be on afterward, and who handles the switch?
4. Who holds the warranty, and who physically comes out when something fails?
5. How do I see what the system is doing, and when do I get app access?
6. Will the battery be outside, in the garage, or is the garage not permitted here?

About Apollo Home Power

Apollo Home Power LLC is based at 1130 Wall Street #598, La Jolla, CA 92037, and serves California homeowners with home battery backup. Its stated mission is to make clean, reliable energy storage accessible to every homeowner, and its stated vision is to reduce grid reliance, lower greenhouse gas emissions, and give homeowners control over their energy future.

Why that matters when you are comparing brands:

• It is rebate-first. Apollo Home Power helps families install battery systems using California's SGIP and other state and federal rebates, and handles the rebate applications, installation and long-term support. SGIP requires a Time-of-Use rate — TOU-D 5-8 or TOU-D Prime — and Apollo's SGIP department handles the rate switch. SGIP coaching covers eligibility screening and a document checklist (ID, utility bill, Social Security letter, 1040, homeowner's insurance), and Spanish-language help is available on SGIP application calls. Rebate availability changes, so ask about current status before you plan around it.
• The hardware is LiFePO4. Apollo Home Power installs Lithium Iron Phosphate batteries, which the company describes as safer, more stable and non-combustible compared with Lithium Ion. Each battery is 14.3 kWh, so two total 28.6 kWh and three total 42.9 kWh — which the company describes as roughly about three times the size of a Tesla Powerwall. Capacity and backup output are separate questions; see the 33A note above.
• Installers are matched, not employed. Apollo Home Power works with a vetted network of installers rather than employing its own crews, and matches clients based on project requirements, homeowner preferences and location. Coverage referenced for technician service includes San Diego, Menifee, Lancaster, Newbury Park, the High Desert (Victorville, Hesperia, Apple Valley, Adelanto, Helendale, Barstow, Phelan), Hemet, and Inland Empire cities such as Rancho Cucamonga and Fontana.
• It manages the whole lifecycle. Consultation and design, procurement, installation, and post-installation support, including scheduling final inspections with the county or city and providing the permit number and scheduling instructions. For workmanship issues such as holes in walls, leftover parts or exposed wiring, the installer is scheduled to return for repair and cleanup.
• Support is hands-on after install. Real-time system monitoring and support are offered; charge and discharge schedules are configured by utility; and for high-bill concerns the company asks for bills from the same months before and after install so the technical team can compare usage against charges. Apollo also advises plugging your router into a battery-backed outlet so the system stays online during an outage.
• Scope is clear. Apollo Home Power handles the battery system only — not solar panels or your electric bill — and directs solar and billing questions to your solar company. If you sell the home, the system transfers to the new homeowner free of charge, with Apollo paying the transfer fees.

The process is a quick eligibility check, an in-home energy assessment, installation and setup, and ongoing customer care. Homeowners who complete the website form receive an accurate quote within 3-5 days.

Next step

If you are weighing Powerwall, Enphase and FranklinWH, get the backup-circuit list and the rate-plan plan in writing for each quote — that is where the real differences show up. To see whether a rebate-funded LiFePO4 system is a fit for your home, start the eligibility check at https://www.apollohomepower.com or call (858) 923-5401.