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.
MO License #20250016884.9 Star Average. 410+ Reviews.In Business Since 2010Cottleville, MO
Pick what you're noticing. We'll tell you what it usually means, how urgent it is, and what fixes it.
If storms or grid outages keep taking out heat, sump pumps or medical equipment, backup power can keep the essentials running.
Common causes
An estimate, not a quote. Estimates for installs and upgrades are free; your exact flat price comes after we see the job, and it's the price you pay.
$10,000–$20,000
Typical installed range without solar. Every system is designed for the home, so we quote after a load review.
$20,000–$35,000+
Typical installed range. Every system is designed for the home, so we quote after a load review.
Anker SOLIX
Anker's newest whole-home system. With the Power Dock it connects at a 200A panel and switches the house over in 20 ms or less.
7.6 kW continuous per unit (10 kW turbo with 2+ batteries) · Up to 30 kWh per unit, expandable to 90 kWh · 9 kW solar input per unit · Up to 12 smart branch circuits on the Power Dock
Anker SOLIX
A modular system built from stackable 5 kWh LiFePO4 battery modules, sized to exactly what you need.
Up to 30 kWh and 6 kW per system · Systems can be paralleled for larger homes · Under 20 ms switchover · 10-year warranty
EG4
A hybrid inverter and 200A interconnect for whole-home backup with larger solar arrays and higher loads.
12 kW from battery, 16 kW with solar · Up to 21 kW of solar input · GridBOSS manages whole-home transfer for up to 3 inverters · Pairs with EG4 wall-mount batteries
Equipment we install: SOLIX E10, Power Dock, B6000 Battery, EG4 FlexBOSS21, EG4 GridBOSS, EG4 WallMount All Weather.
Typical job: Varies by system; most whole-home installs take a few days.
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.
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.
You get an itemized quote for the batteries, inverter or Power Dock, solar, panel work, permits and installation.
We pull the permits and coordinate with your utility where the system or solar requires it.
We mount the batteries and inverter, install the solar array, and connect everything at your main panel for automatic whole-home switchover.
After inspection, we commission the system, test a simulated outage and confirm the switchover.
We set up monitoring on your phone and walk you through how the system behaves in an outage.
Reviews that mention this work first.
4.9 Star Average. 410+ Reviews. Google, Facebook, BBB and Angi.
Fully licensed and insured in Missouri:MO State License #2025001688,St. Charles County #E25-000008,St. Louis County #ES4501.Lifetime workmanship warranty on installed work.
Flat-rate pricing before work begins, from an office in Cottleville.
5377 State Route N. Suite 437, Cottleville, MO 63304
Mon-Fri 8:00 AM - 4:00 PM
By county
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.
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.
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.
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.
Battery backup is silent, needs no fuel and no oil changes, and recharges from solar. A generator can run longer on a gas line. With enough capacity and solar, a battery system covers most outages here.
Yes. Anker SOLIX and EG4 systems are modular, so we can add batteries or solar as your needs grow.
Sometimes. We check your panel and service during the load review. If an upgrade is needed, we can do it as part of the same project.
Most estimates booked within 1-3 business days.