Sunshine, stored at home,ready when the grid isn't.

For whole-home backup, most households land somewhere in the 10-30 kWh range of usable storage; the exact figure depends on which loads you treat as essential and how long an outage you want to cover. An average US home uses 20-30 kWh a day. If you only keep the essentials going (lights, internet, fridge, well pump), 16 kWh can last a day or longer, whereas HVAC and other heavy loads call for something closer to 28 kWh, or a stacked setup. Our sizing guide shows the calculation step by step.

LiFePO4 (lithium iron phosphate) cells carry a cycle rating of 6,500-8,000+ at an 80% depth of discharge. Cycled once a day, that works out to about 15-20 years of use, a big step up from older lithium-ion chemistries, which typically manage between 1,000 and 2,000 cycles. Their capacity also fades more slowly with age, and they cope with a broader spread of temperatures.

A grid-tie inverter has one job: turning solar DC into AC for your loads or the grid, and it switches off whenever the power goes out. Hybrid inverters also handle battery charging and discharging and offer a backup mode, which means they can power your home through a grid failure, save solar energy for later and operate off-grid. The split-phase hybrids we sell switch over to battery in less than 10 ms.

They can. With a hybrid inverter, sufficient solar and enough LiFePO4 storage, a home can run with no grid connection at all. How big the system should be comes down to your daily energy consumption, how much sun you get, and the number of autonomy days you'd like as a buffer for overcast spells. The majority of off-grid homes pair an inverter in the 10-12 kW class with stacked battery capacity of 28 kWh or more.

Among mainstream lithium chemistries for home storage, LiFePO4 is the safest. It strongly resists thermal runaway, the cells don't give off oxygen if damaged, and they operate at lower temperatures than NMC lithium-ion. On top of that, our systems include a BMS (battery management system) protecting against short circuits, over-discharge, over-charge and extreme temperatures, and they hold safety certifications from UL and IEC.

Yes. Battery-and-inverter setups connect to the main electrical panel in your home, and most jurisdictions require a permit and a licensed electrician for that work. Along with the equipment, we provide system diagrams and datasheets, and we can put you in touch with installers or offer trade pricing via our dealer program.