Battery Manufacturer Integrations

At a glance

Flip has integrated more battery and inverter manufacturers into utility programs than almost anyone in the residential market. That work gives Flip a ground-level view of how each product actually behaves under dispatch, and it shapes the hardware Flip now chooses for its own deployments.

The challenge

Residential batteries are a fragmented market. Dozens of manufacturers sell into U.S. homes, and each speaks its own language: different cloud APIs, data formats, control modes, reporting intervals and quirks in how a battery responds to a command.

That fragmentation blocks both sides of a battery program:

• Utilities can't integrate with every manufacturer one by one, so most programs end up supporting a handful of brands and leave many customers out.
• Manufacturers can't integrate with every utility program and DERMS, so their customers miss out on incentives that make batteries easier to sell.
• Performance depends on details buried in each product, such as how a battery handles reserve settings, pre-charging or power limits. Getting those wrong quietly erodes the capacity a utility is paying for.

What Flip did

Flip built one integration layer that turns every supported battery into the same controllable, measurable resource, whatever the brand.

Deep integrations, not just connections. For each manufacturer, Flip handles commands, telemetry and device settings, and normalizes the data so a utility sees one consistent fleet.

A certification process. Before a product goes live in a program, Flip runs it through standard tests for telemetry quality, charge and discharge commands, event cancellation, opt-outs and more. Utilities get hardware that has already been proven under dispatch.

Partnerships with manufacturers. Several manufacturers rely on Flip as their path into utility programs:

• EG4 is in high demand nationwide, but its software and operations teams are stretched thin. Flip takes much of the VPP work off their plate while expanding EG4's footprint across utilities and DERMS: its customers can enroll in more than a dozen programs through Flip.
• Fortress Power's operations and engineering teams were spending a lot of effort running VPPs alongside many other priorities. Flip took over running all of Fortress's VPPs on its behalf, starting with LUMA in Puerto Rico.
• Sigenergy, Tigo and others rely on Flip the same way, to join new programs and run them without growing their own teams.

Running the VPP for its partners. Beyond the integration, Flip takes on the work of program participation so manufacturers don't have to:

• Utility and DERMS relationships. Flip manages relationships with utilities and DERMS providers, and advocates for manufacturers and their customers as programs are designed.
• Approved vendor lists. Flip helps manufacturers join new programs and get their hardware onto utilities' approved vendor lists, so their customers qualify.
• App integration. Flip integrates with manufacturers' mobile apps, so homeowners enroll and manage their participation where they already manage their battery.
• Homeowner payments. Where a utility doesn't pay customers directly, Flip does.
• VPP customer support. Flip answers homeowners' program questions, keeping that load off the manufacturer's support team.
• Performance monitoring. Flip monitors every fleet continuously and works closely with each manufacturer to maximize how its batteries perform in events.

Outcomes

• 15+ brands dispatched for real utilities. Batteries from more than 15 manufacturers have responded to live events in Flip-run programs since February 2025, including EG4, Sigenergy, Tesla, Tigo and many other brands.
• New manufacturers live in weeks. When Fortress joined LUMA's program in Puerto Rico in 2026, its customers went from enrollment to a live dispatch in under three weeks.
• A platform that scales. Flip's platform now connects about 11,000 homes and 150 MW of batteries across its manufacturer integrations.

Why it matters for utilities and partners

For utilities, Flip's integration work means a program can open to customers on almost any battery from day one, with one partner accountable for how every brand performs.

For manufacturers, Flip is a single path into utility programs across the country, without building integrations or running programs themselves.