For funders and program administrators
Design, price, and verify residential rebate programs.
An end-to-end program creator and clearinghouse: budget and terms in; methodology-priced offers, photo-verified installs, and auditable contractor payments out. Grid capacity, freed house by house.
All 50 states + DC. No account required.
Built for
One program engine, whoever funds it.
Data center developers
Fund home-efficiency programs in the communities near a proposed or operating site. Every qualified home carries photo evidence tied to a specific address, so the investment is something residents and local councils can check, house by house, rather than a figure in a press release.
Virtual power plant operators
Lower measured consumption across an enrolled fleet of homes to free capacity on infrastructure that is already deployed. Participating households pay nothing to enroll or take part, and the value comes from reduced draw on the grid rather than a monthly fee.
Utilities and public program administrators
Run a rebate or efficiency program on the same rails: methodology-priced offers, photo evidence on every home, and payment instructions an auditor can follow. Program terms are set in the open designer instead of a procurement cycle, and the administrator keeps direct control of disbursement.
Deemed-savings pricing on the Texas TRM v13 today, physics-based estimates (degree-day and modified-bin models) everywhere else, and additional TRM packs as programs launch.
Qualification is tied to evidence: every qualified home carries source photo evidence, reviewed against the program's rules before payment is authorized.
Funders pay contractors directly. WattShed issues payment instructions and never custodies program funds.
Community investment is only credible when its results can be checked.
Utilities, developers, and technology companies are financing residential efficiency programs at a growing rate, often to offset new electric load or to make good on a community commitment tied to a specific project. Those commitments are easy to announce and hard to defend once a regulator, a reporter, or a neighborhood group asks what the money actually produced.
That scrutiny is not hypothetical. New electric load, particularly from large data center development, is colliding with grid capacity and local politics in most regions proposing it. Programs meant to offset that load get judged by the same standard: whether the claimed result traces back to a measurement, a photo, and an algorithm, each with a date attached.
More than 75 data center projects worth about $130 billion were blocked or delayed in the first quarter of 2026.
New York enacted the first statewide moratorium on new data centers of 50 MW or more under Executive Order 62.
Google funded a $1 million home-efficiency and repair program for at least 50 income-qualified households near its LaGrange, Georgia data center.
How a program runs.
Four stages, each producing an artifact a funder can hand to a regulator, a reporter, or an auditor.
Set the program
Budget, eligible geography, target measures, and payment terms are defined once and compiled into a versioned program specification.
Price it
Projected participation is priced against the published methodology, producing a budget-to-impact curve before a dollar moves.
Verify delivery
Contractors submit completion evidence: source photos tied to an address and a measure, timestamped and checked against the program's qualification rules.
Authorize payment
Once evidence clears review, WattShed issues a payment instruction to the funder's disbursement system. The funder pays the contractor directly.
Every figure a program produces carries one of three labels: Simulated for hypothetical designer output, Estimated for a methodology projection on a real qualified home before work completes, and Verified once completion evidence clears review.
Inspect the economics yourself.
The figures below are the engine's own output for one fixed set of program terms. The live designer runs the same engine on any state, budget, and measure mix you choose, with no account and nothing saved.
Program parameters
Program budget
$750,000
Eligible measures
Geography
Example countyEngine output
SimulatedHomes served
229
Est. peak reduction
378 kW
Incentive ceiling / home
$5,000
Per-home rebate
$3,273
Priced on a single representative home for this area; portfolio modeling arrives with site-specific programs.
Opens the live designer. Nothing is submitted or saved.
The number is only useful if you can trace it.
Simulated1.Texas TRM v13 deemed-savings methodology, applied to the example program's representative home on a lifetime savings basis at $0.05 per kWh. WattShed prices with deemed savings on the Texas TRM v13 today and with physics-based estimates (degree-day and modified-bin models) everywhere else; additional TRM packs arrive as programs launch. The full methodology dossier, with per-figure citations, is being prepared for publication.
What WattShed does, and what it deliberately does not.
WattShed does
Designs and administers programs
WattShed does not
Does not lend
WattShed does
Verifies evidence and completion
WattShed does not
Does not guarantee bill savings
WattShed does
Produces auditable payment instructions
WattShed does not
Does not hold funder capital
WattShed does
Calculates methodology-based estimates
WattShed does not
Does not publish unsupported impact figures