Compare storage capacity, output, panel efficiency, monitoring, expandability, warranty, and system compatibility before the model number goes into your proposal.
A battery must supply enough instantaneous power for the loads you want to start and enough stored energy for the runtime you expect. Panels must fit the roof, pair correctly with the inverter, and produce well under site conditions.
We compare equipment inside the complete design: roof, electrical service, utility, backup loads, monitoring preferences, product availability, and written warranty terms.
Current model: Powerwall 3 · Powerwall 3 Expansion
Tesla's current integrated battery platform, with a lower-cost expansion option for added runtime.
Current model: aPower S · APRS-10K15V1-US
FranklinWH's newest all-in-one battery with direct solar connection and an integrated hybrid inverter.
Current model: aPower 2
High-capacity, high-output storage built around flexible whole-home energy management.
Current model: IQBATTERY-10C-1P-NA
Enphase's current 10 kWh battery, built for higher power and the fourth-generation Energy System.
Current model: Battery EF-BP-10 · Hybrid inverter EF-PCS-24
A scalable, multi-source home-energy system designed for demanding whole-home backup goals.
Figures shown are published manufacturer specifications. The usable runtime of a completed system depends on household loads, configuration, settings, temperature, and solar recharge.
| Product | Usable energy | Continuous output | Solar input / architecture | Manufacturer warranty |
|---|---|---|---|---|
| Tesla Powerwall 3 + ExpansionPowerwall 3 · Powerwall 3 Expansion | 13.5 kWh per unit | Up to 11.5 kW per Powerwall 3 | Integrated inverter · 6 MPPTs · up to 20 kW DC input | 10 years |
| FranklinWH aPower SaPower S · APRS-10K15V1-US | 15 kWh | 11.5 kW | Integrated hybrid inverter · 4 MPPTs · up to 20 kW DC input | 15 years / 60 MWh throughput |
| FranklinWH aPower 2aPower 2 | 15 kWh | 10 kW | AC-coupled battery · managed through FranklinWH aGate | 15 years / 60 MWh throughput |
| Enphase IQ Battery 10CIQBATTERY-10C-1P-NA | 10.0 kWh | 7.08 kW | AC-coupled · 4 embedded grid-forming microinverters | 15 years / 6,000 cycles · 60% retained capacity |
| EcoFlow OCEAN ProBattery EF-BP-10 · Hybrid inverter EF-PCS-24 | 10–80 kWh system range | Up to 24 kW | Hybrid inverter · up to 40 kW solar input | 15 years |
Sunstorm Energy uses these two Enphase microinverter models. IQ8X serves compatible higher-voltage panels; IQ8HC serves compatible higher-current panels. The final proposal identifies the exact pairing.
Current model: IQ8X-80-M-US
The Enphase microinverter we use for compatible high-voltage residential solar modules.
Current model: IQ8HC-72-M-US
The Enphase microinverter we use for compatible higher-current residential solar modules.
| Product | Common module pairing | MPPT voltage range | Maximum DC input voltage | Maximum module short-circuit current | Peak / continuous output | CEC weighted efficiency | Manufacturer warranty |
|---|---|---|---|---|---|---|---|
| Enphase IQ8X MicroinverterIQ8X-80-M-US | 320–540 W | 43–60 V | 79.5 V | 13 A | 384 VA / 380 VA at 240 V | 96.5% | 25 years |
| Enphase IQ8HC MicroinverterIQ8HC-72-M-US | 320–540 W | 29.5–45 V | 60 V | 20 A | 384 VA / 380 VA at 240 V | 97.0% | 25 years |
Module wattage is not a compatibility guarantee. Voltage, current, temperature coefficients, Enphase compatibility documentation, local code, and the complete system design must also be checked.
Panel availability changes. Your proposal should still identify the exact manufacturer and model before you sign.
Premium high-density residential panels for roofs where usable space matters.
A 440 W, full-black N-type TOPCon residential panel with bifacial cell construction.
A current N-type residential series spanning 440–465 W with up to 23.85% efficiency.
| Product | Rated power | Module efficiency | Cell technology | Pmax temperature coefficient | Warranty |
|---|---|---|---|---|---|
| REC Alpha Pure-RXREC450AA–REC470AA Pure-RX | 450–470 W | Up to 22.6% | Heterojunction (HJT) | −0.24%/°C | 25-year product and performance · at least 92% power in year 25 |
| HD Hyundai Energy Solutions HiN-T440NF(BK)HiN-T440NF(BK) | 440 W | 22.53% | N-type TOPCon · bifacial · full black | −0.30%/°C | 25-year product · 30-year performance · 87.4% power in year 30 |
| Sirius PV USA ELNSM54M-HC-N SeriesELNSM54M-HC-N-440 through -465 | 440–465 W | 22.54–23.85% | N-type · 108 half-cut cells | −0.29%/°C | 25-year product · 30-year performance |
Where a product family contains several wattages, the signed proposal will identify the exact model installed.
Panel output, battery capacity, power, and temperature behavior are matched to the project goals.
Panels, inverters, batteries, controllers, electrical equipment, and monitoring must work as one approved design.
App controls, monitoring detail, future expansion, service path, and warranty terms matter after installation.
Final selection accounts for permitting, utility requirements, lead time, availability, and the written contract.
There is no universal best battery. The right choice depends on critical loads, peak power, desired runtime, solar-recharge potential, generator plans, electrical layout, monitoring preferences, expandability, and budget.
No. Electrical limits, listed combinations, rapid-shutdown requirements, manufacturer instructions, and system architecture all matter. Sunstorm verifies component compatibility in the final design.
Yes. A useful proposal should name the manufacturer and model for panels, inverters, batteries, controllers, and other major components. Any later substitution should be disclosed and reviewed.
No. Manufacturers update products and availability changes. The signed project documents identify the final equipment, configuration, pricing, and warranty terms for a specific installation.
Product names and trademarks belong to their respective owners. Manufacturer specifications are referenced for comparison; final availability and project terms are confirmed in writing.
We will show the named models and the reason each one fits.
