Go solar – residential
Battery Backup
Looking for a reliable way to keep the lights on during a power outage? A solar battery backup system lets you store excess solar energy and use it when you need it most—day or night, rain or shine. Ecotech Solar offers the best solar battery backup systems for home use, including trusted options from Tesla, Enphase, and FranklinWH.

Why Add a Solar System Battery Backup?
A solar system battery backup gives you more than just peace of mind—it gives you energy independence. While standard solar panels shut down during outages, adding a battery means your home stays powered even when the grid goes down.
Benefits of a Solar Battery Backup System:
- ^Power your home during grid outages
- ^Use more of your own solar energy
- ^Lower electric bills with time-of-use savings
- ^Reduce reliance on the utility
- ^Quiet, clean, and fully automatic
- ^Seamless integration with new or existing solar systems
Battery backup vs. a Generator
Unlike gas generators, solar battery backup systems are:
- Silent – no engine noice
- Fume Free – safe for indoor use, no emissions
- Automatic – kicks in instantly when the power goes out
- Low maintenance – no fuel refills or engine upkeep
- Smart – manage energy use with a mobile app
To dive deeper, check out our Battery Backup Guide
Our Top Solar Battery Backup Systems
We install some of the most reliable and advanced systems on the market. Whether you want to back up essentials or your whole home, we’ll help you choose the right fit. Some options we install include:
Tesla Powerwall
The gold standard in home energy storage. Sleek design, dependable performance.
- 13.5 kWh per unit
- Stackable for expanded storage
- Mobile app to monitor and control usage
- Ideal for whole-home or essential-load backup
- Eligible for PSE’s Flex Batteries program, currently offering $1,000 to enroll and $500/year to participate
Enphase IQ Battery
Safe, scalable, and optimized for homes with Enphase microinverters.
- Modular sizes: 5- 10 kWh
- Lithium iron phosphate (LFP) battery chemistry (safe and long-lasting)
- Storm Guard feature automatically charges the battery ahead of severe weather events
- Great for flexible expansion over time
FranklinWH Home Power
Powerful whole-home backup with smart energy management built in.
- 15 kWh capacity per unit
- Integrates with solar, grid, and generator power
- Intelligent load management system
- Ideal for large energy loads or full-home coverage
Is Battery Backup Right for You?
Whether you’re just starting with solar or want to upgrade your existing system, Ecotech can help you design the best solar battery backup system for your home.