Home Battery Backup in O'Fallon, MO
Whole-home battery backup for St. Louis area homes, designed around your house. We install Anker SOLIX whole-home systems (the E10 and the modular X1) and EG4 FlexBOSS inverters with the GridBOSS, solar-ready or paired with solar, wired at your main panel so the whole house switches over automatically when the grid goes down. We serve all of O'Fallon, from Fort Zumwalt Park to the neighborhoods toward St. Peters.
O'Fallon homes
O'Fallon's newer subdivisions mostly have 200-amp service, while homes in the older neighborhoods closer to downtown can still be on 100 or 150 amps with their original panels.
Permits and utility
- Permit: pulled with St. Charles County or the City of O'Fallon, whichever has jurisdiction, and inspected before we finish.
- Utility: Ameren Missouri or Cuivre River Electric Cooperative, depending on your address. We schedule any disconnect, reconnect or meter work.
- ZIP codes: 63366, 63368, 63376
What it costs in O'Fallon
Whole-Home Battery Backup (Solar-Ready)
$10,000–$20,000
- Anker SOLIX E10 or X1, or EG4 FlexBOSS + GridBOSS
- Main-panel connection for automatic whole-home switchover
- Load review and battery sizing
- Ready for solar whenever you add it
Typical installed range without solar. Every system is designed for the home, so we quote after a load review.
Whole-Home Battery + Solar
$20,000–$35,000+
- Anker SOLIX E10 or X1, or EG4 FlexBOSS + GridBOSS
- Solar array designed for your home
- Main-panel connection for automatic whole-home switchover
- Permits, inspection and utility coordination
Typical installed range. Every system is designed for the home, so we quote after a load review.
Typical ranges. Your written quote follows a free on-site assessment.
How the job goes
Load Review
We walk your home, review your panel and service, and list what you need running in an outage, from the HVAC and well or sump pump to the EV charger.
System Design
Every system is designed for the home: battery capacity, inverter, solar array size and where everything mounts. We compare Anker SOLIX and EG4 options for your loads.
Detailed Quote
You get an itemized quote for the batteries, inverter or Power Dock, solar, panel work, permits and installation.
Permits & Utility
We pull the permits and coordinate with your utility where the system or solar requires it.
Installation
We mount the batteries and inverter, install the solar array, and connect everything at your main panel for automatic whole-home switchover.
Home Battery Backup questions from O'Fallon
Do you handle the permit for home battery backup in O'Fallon?
Yes. We pull the permit with the office that has jurisdiction at your address, St. Charles County or the City of O'Fallon, and schedule the inspection. The permit is included in our quote.
Who is the utility for O'Fallon homes?
O'Fallon is served by Ameren Missouri or Cuivre River Electric Cooperative, depending on your address. When the work needs the power disconnected or a meter changed, we coordinate it with the utility for you.
Which parts of O'Fallon do you serve?
All of O'Fallon (63366, 63368, 63376) and the surrounding area, including St. Peters, Lake St. Louis, Wentzville, Dardenne Prairie.
Can a battery power my whole house?
Yes, with a whole-home system sized for it. The Anker SOLIX E10 with its Power Dock and EG4 FlexBOSS systems with the GridBOSS connect at your main panel and switch the whole house over automatically. How long it runs depends on battery size and what you run, so we size it to your loads, and solar extends it.
How much does whole-home battery backup cost?
A solar-ready whole-home battery system typically runs $10,000 to $20,000 installed. With solar, most projects run $20,000 to $35,000 or more. Every home is different, so the price depends on battery capacity, solar array size, your loads and any panel work. We quote it after a load review.
Anker SOLIX E10, X1 or EG4: which is right for me?
The E10 is Anker's newest whole-home system: 7.6 kW continuous per unit, up to 30 kWh per unit and expandable to 90 kWh, with a 200A Power Dock for automatic whole-home switchover. The X1 is modular, adding 5 kWh battery modules up to 30 kWh per system. EG4 FlexBOSS systems suit larger solar arrays and higher loads. We recommend one after a load review.
Do I need solar?
No. We install whole-home battery backup that is ready for solar, and you can add panels now or later. Solar recharges the batteries during a long outage and lowers your bills the rest of the year.
More from First Choice Electric
See everything about home battery backup, or all our electrical services in O'Fallon.
Home Battery Backup nearby: St. Charles, Chesterfield, St. Peters, Kirkwood, Wildwood