Fortress Power · Nationwide

Fortress Power battery installers, town by town.

Request installer matches in the US, subject to availability

What could a Fortress Power save you?

Enter your ZIP code to estimate savings and request quotes.

Fortress Power eVault MAX battery enclosure

No contact details needed to see your estimate. Request quotes only when you’re ready.

  • ✓ eVault MAX uses lithium iron phosphate battery chemistry
  • ✓ Plan a larger battery bank using supported parallel units
  • ✓ Check state and utility rebates; eligibility varies
  • ✓ Shortlist Solar-vetted installers, subject to availability
  • ✓ 100% free, no obligation
  • ✓ Up to 3 vetted installers — and no one else sees your details
  • ✓ Vetted installers — typically 2+ years in business
  • We pick them, nobody bids

    Matching depends on current participating installers for your address and requested brand. There may be fewer than three or no matches. A location page does not establish installer availability. Free for homeowners.

  • Vetted for battery work

    Workmanship warranty, trading history and brand experience — checked before any installer sees your inquiry.

  • Incentives at quote

    No federal residential credit applies to 2026 installs; any verified state or utility program is applied by the installer at quote.

Fortress Power at a glance — sourced

  • Current Fortress Power line-up in the US: Fortress batteries and Envy hybrid inverters. source

Find Fortress Power installers near you.

Each state page lists its cities, the outage and incentive picture for that state, and information for comparing systems. These directories show page coverage, not verified installer availability. You can request a match by ZIP code.

Fortress Power questions, answered

Is every Fortress Power quote a complete Envy system?
No. Ask whether the proposal uses Envy inverter equipment or pairs a Fortress battery with a different manufacturer’s inverter. The selected battery family, control equipment and communication arrangement should all be identified. Have the designer explain the documented combination and who supports integration issues. A quote carrying the Fortress name could describe a battery supply, a broader equipment package or a completed installation. Compare those scopes explicitly, including mounting, electrical protection and commissioning, before treating two proposals as offers for an equivalent home-storage system.
What should my Fortress Power installation include?
Fortress Power offers residential batteries and Envy inverter products. A proposal should make clear whether it uses a complete Fortress system or a Fortress battery with another inverter. List the Fortress battery series and the inverter that will control it. Include the required gateway, mounting arrangement and electrical protection. Discuss how future storage expansion would affect the original design.
What should I check before choosing Fortress Power?
The Fortress name does not identify the inverter, battery series or gateway supplied in a particular quote. Are you proposing a Fortress Envy system or a mixed-brand pairing? Which gateway and mounting equipment are included? Who verifies communication between the battery and inverter at commissioning?
Who supports a completed Fortress Power installation?
Get a single written commissioning checklist covering the battery, inverter and monitoring, even if different suppliers support those components.

Go deeper

Read before you commit.