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Battery Backup
ServiceFor homes and businesses · Since 1995

Battery Backup

Keep the lights on. Beat peak rates. Sleep better.

  • 5.0 rating300+ reviews
  • 1-hr callbackBusiness hours
  • Licensed & insuredCA Lic. #C-46
  • 13.5 kWh

    Per Powerwall unit

  • 1–3 days

    Typical backup runtime

  • 30%

    Federal tax credit

  • 10 yr

    Manufacturer warranty

What's included

What's Included in Battery Backup

Keep the lights on. Beat peak rates. Sleep better.

Battery storage isn't a luxury anymore — it's the missing half of a real energy system. We size every battery around the loads you actually want to back up, not a generic kWh number from a brochure.

Tesla Powerwall, Enphase IQ, and FranklinWH — we're certified on all three and we recommend the system that fits your home, not the one we have in stock.

Time-of-use rate plans have rewritten the math. A properly sized battery now saves money every single day, not just during outages, by storing cheap mid-day solar and discharging during peak evening pricing.

What you get

  • Whole-home and partial-home backup options
  • Tesla Powerwall, Enphase, and FranklinWH certified
  • Daily time-of-use savings on peak rates
  • Seamless transfer during grid outages
  • Stackable capacity — start small, expand later
  • Smart load management for critical circuits
Book Free Consultation

Process

Our Battery Backup Process

Premium engineering on premium hardware — handled end-to-end so you don't manage a thing.

Step 01

Energy Profile

We model what you really need to back up and for how long.

Step 02

Sizing

kWh and kW selected for your goals — not a one-size-fits-all box.

Step 03

Install

Permits, interconnect, gateway, and commissioning handled.

Step 04

App & Monitoring

Live visibility into every electron, on every device.

Recent work

Recent Battery Backup Projects

Wall-mounted residential home battery storage system installed in a clean garage with neat conduit and dedicated breaker panel.

Whole-home battery backup — garage install with dedicated subpanel.

Orange County, CA · 2025-01-08

Three Enphase IQ Battery 10C units mounted side by side on the exterior stucco wall of a modern California home, with clean black conduit and tidy landscaping at the base.

Enphase IQ Battery 10C — three-unit residential install on exterior wall.

San Diego, CA · 2025-03-21

Smartphone in hand showing the Enphase home energy mobile app with an 83% battery charge ring and live solar, home, grid, and battery power-flow icons.

Enphase mobile app — live battery state of charge and home power flow.

Homeowner dashboard · 2025-03-21

FAQ

Battery Backup — Frequently Asked Questions

The questions our customers ask most about this service.

What customers say

Battery Backup Customer Reviews

Pulled directly from our public Google Business Profile.

VerifiedGoogle review
Excellent service. We had an amazing experience with Sun Up Electric. Konstantin is a very professional, straightforward guy. The entire experience exceeded our expectations and we would recommend his company in a heartbeat.

Originally posted to Sun Up Electric — now part of Simmitri

Brooke BrawnerCalifornia · Solar + Electrical · 1 month ago
VerifiedGoogle review
Great company. Solar appointment was the best I have seen and very informative — no pressure and very polite approach focusing on my interests and needs. System was installed and it was a great experience.
Lanard C.California · Solar · 34 weeks ago
VerifiedGoogle review
Simmitri did our roof and a solar installation. It was a great experience from start to finish. Both jobs were completed faster than I expected, and everyone was very professional. Highly recommended!
Nitin GanatraCalifornia · Roofing + Solar · Feb 11, 2023

Ready when you are

Ready for battery backup?

Book a free consultation and we'll model your incentives, financing, and timeline — in writing.

  • 5.0 rating300+ reviews
  • 1-hr callbackBusiness hours
  • Licensed & insuredCA Lic. #C-46
◉ Simmitri · Est. 1995