Battery Storage
Whole-house battery backup
Los Angeles County
20kWh lithium-iron system with backup subpanel, commissioned in three days.

Battery Storage • Whole-house backup
Lithium-iron chemistry — safe, no fire, no puncture explosion — rated at 20kWh, with on-grid and off-grid capability and a 3-day whole-house installation.
Introduction
Public safety power shutoffs, fire-season outages and time-of-use rates all point at the same fix: store your own power and use it when it's worth the most. ECO installs whole-house battery backup as a 3-day project.
We use lithium-iron (LFP) chemistry specifically for its safety profile — no fire, no puncture explosion — with 20kWh of rated energy and both on-grid and off-grid capability.
Sizing starts with your loads, not a brochure. We map what actually has to stay alive during an outage — refrigeration, medical equipment, well pumps, a home office — and configure backup around it.
Problems we solve
Whole-house backup keeps critical circuits — or the entire panel — running through the event.
Store cheap daytime solar production and discharge it during peak-rate evening hours.
Grid-tied solar without storage stops producing in an outage. A battery restores islanded operation.
Lithium-iron chemistry is chosen for stability: no fire, no puncture explosion.
We run a load analysis so the system covers your real backup priorities.
Benefits
Verified programs, warranties and incentives — not marketing language.
Whole-house backup commissioned inside three working days.
Enough capacity to carry a typical home through an evening peak or an outage.
Lithium-iron cells: no fire, no puncture explosion.
Run tied to the utility, or island the house when the grid fails.
Add storage to an ECO array or to a system someone else installed.
Storage rebates, tax credits and financing evaluated with your estimate.
Our approach
A dedicated project manager owns the schedule from inspection through warranty registration.
We map your usage curve and the circuits that must stay live during an outage.
Capacity, inverter strategy and backup panel configuration, on-grid or off-grid.
Plans submitted and permits pulled by ECO.
Battery, inverter and backup subpanel installed and commissioned.
City inspection, monitoring setup and a walkthrough of outage behavior.
Relevant projects
Battery Storage
Los Angeles County
20kWh lithium-iron system with backup subpanel, commissioned in three days.
Reviews
"The team at ECO Systems are great. They removed all 3 layers of my old shingle and trucked it off at the end of the day just like they said they would. My new shingle roof has a 50 year warranty so I never have to think about it again. Cleaned up at the end of each day and I was updated daily of the progress. If you don't have a solid referral for a company to replace your roof, I did the company comparisons for you. I highly recommend Eco."
"I am extremely happy with my roofing experience using ECO Systems! They explained all of my options and were completely transparent about all of the costs up front. The roof crews were punctual and cleaned up at the end of every work day. I would not hesitate to recommend them to anyone in need of a new roof. They get Five Stars!"
"ECO Systems was my first estimate. They did a complete inspection and evaluation of my roof and explained in detail their process of replacing my roof. Eco emailed a complete proposal with all of the details I requested, including finance options that afternoon. They started the job on the day and time promised. Even with a few unexpected issues, the final price matched up with their upfront price quotes."
Works well with
Worth knowing about while the crew is already on site — no pressure either way.
FAQ
For most homes running essentials — refrigeration, lighting, internet, a few outlets — that is roughly a day. Running air conditioning or an EV charger shortens it considerably, which is why we start with a load analysis.
Next step
Free written estimate, permits and city inspections handled, warranty registered by us. Call or text 24/7.