Long Island · Suffolk & Nassau County
Battery Backup Systems on Long Island
When the grid goes down, a home battery keeps your lights, fridge, and well pump running. Berman Electric installs Tesla Powerwall, FranklinWH, and Enphase systems across Long Island — sized for the loads that matter to you, wired by licensed electricians, and ready to pair with solar.
Benefits
Why it's worth doing right.
Storm-ready
Keep critical circuits powered through Long Island's storm-season outages — automatically.
Grid independence
Store solar production by day and run on it at night to cut reliance on the grid.
Whole-home or essentials
We scope backup to your budget — essential circuits or true whole-home coverage.
Quiet & maintenance-free
No fuel, no fumes, no noise — unlike a traditional standby generator.
Interactive tool
Run the numbers for your home.
Battery Runtime & ROI Calculator
See how long a battery powers your essentials.
Choose what to back up
Our process
From assessment to clean finish.
Load & runtime review
We map the circuits you want backed up and estimate runtime per battery.
System sizing
Single or stacked batteries sized to your essential loads and any solar.
Install & integration
Battery, gateway, and backup panel wired and configured to code.
Commissioning
We test failover and walk you through the app so you know exactly how it behaves.
What we cover
A full authority on the topic.
Recent work
Real installs across Long Island.
Reviews
Trusted by Long Island homeowners.
"Rob installed our EV charger and walked us through what our panel could handle before buying anything. Clean, professional, on time."
— Michael S.
"Electrician-led from start to finish. Our panel upgrade was done to code, permitted, and the communication was excellent."
— Jennifer L.
"Planned our service upgrade with future solar and a battery in mind. Felt like we were getting a real long-term plan, not just a quote."
— David R.
FAQ
Questions Long Island customers ask.
How long will a battery run my home?
Runtime depends on how many circuits you back up and your battery capacity. We size the system around your essential loads and give you a realistic runtime estimate.
Tesla Powerwall vs FranklinWH vs Enphase?
Each has strengths in capacity, expandability, and solar pairing. We recommend the right fit based on your loads, roof, and budget — no one-size-fits-all.
Do I need solar to add a battery?
No. A battery delivers storm backup on its own, though pairing it with solar lets you recharge during the day and maximize independence.
Is a battery better than a generator?
Batteries are quiet, fuel-free, and maintenance-light, and they pair with solar. Generators run longer for multi-day outages. We'll help you weigh the trade-offs.
Start with a free energy assessment
Licensed, insured, and backed by our lifetime workmanship promise. Berman Electric will design the right system for your home.
Or email rob@rbermanelectric.com