SunPower Shed

Services / Battery storage

Solar Battery Storage for Power That Stays On

Hybrid inverters and lithium battery storage that keep essential circuits running during outages and let you use more of the solar energy you generate.

Hybrid inverter and battery bank installed on a wall

How hybrid storage works

Your Own Power Station, Quietly Working in the Background

A hybrid system combines solar panels, a hybrid inverter and a battery bank. The inverter decides, many times per second, where energy should flow — into your loads, into the battery, or to and from the grid.

1

Daytime: solar first

Panels power your home or business directly. Surplus energy charges the battery instead of being wasted.

2

Evening: stored energy

After sunset the battery supplies lights, fans, routers and other essential loads before drawing from the grid.

3

Outage: automatic backup

If the grid fails, the inverter isolates your backup circuits and switches to battery power within milliseconds.

Choosing a battery

Storage Chemistry, Explained Honestly

Batteries are the most expensive part of a hybrid system, so the right choice matters. Here is how the two most common options compare in day-to-day use.

Budget option

Tubular Lead-Acid

Lower upfront cost and widely available, but heavier, shorter-lived and best kept at shallow discharge levels.

When the grid goes down

Lights On. Internet Up. Fridge Cold.

We help you choose a backup circuit around what matters most — lighting, fans, refrigeration, routers, security systems, medical devices or office servers — and size the battery for the hours you need.

Storage FAQ

Battery Questions, Answered

That depends on battery capacity and what you connect. A 5 kWh lithium battery can typically run lights, fans, a router and a refrigerator for several hours. We calculate runtime from your actual appliance list.
Often yes. If you have a grid-tied inverter, we can add an AC-coupled battery or replace the inverter with a hybrid model. We assess compatibility during a site visit.
LiFePO4 is one of the most thermally stable lithium chemistries. We install it with proper clearances, ventilation, breakers and a battery management system.
Quality LiFePO4 batteries are commonly rated for 6,000 cycles or more, which can mean well over a decade of daily use when operated within recommended limits.
Yes, a battery with an inverter can charge from the grid and act as an uninterruptible power supply. With solar, it charges for free from your panels.

Start with a free site assessment

Plan Your Backup Power

Tell us which appliances you need during outages and for how long. We will recommend a battery size and inverter that fits.