US Environmental Protection Agency
ENERGY STAR replacement guidance and rebate finder
Equipment planning signals, certified-product context, and ZIP-based partner offer discovery.
Open the primary source ↗Source registry / verified 14 Aug 2026
A working data feed is not enough. Every city and project category must pass sample, coverage, classification, duplicate, and disclosure gates before supporting a local price claim.
National methods and live program paths
Method sources change slowly. Incentive and tax sources can change quickly, so the site records a verification date and sends the final eligibility decision back to the program owner.
US Environmental Protection Agency
Equipment planning signals, certified-product context, and ZIP-based partner offer discovery.
Open the primary source ↗US Department of Energy
State-program status and authoritative program-owner routing. Availability varies by state.
Open the primary source ↗Internal Revenue Service
Federal tax-credit status. The former 25C credit does not apply to property placed in service after 31 Dec 2025.
Open the primary source ↗US Department of Energy
Conventional storage water-heater planning-age evidence used by repair-or-replace v1.
Open the primary source ↗Local cost evidence audits
Ingestion works, but target-equipment valuation coverage is too weak for local price bands.
Open the official source ↗No current official machine-readable endpoint or licensed snapshot was proven usable.
Open the official source ↗Five labels pass automated sample and coverage gates after exact-fingerprint suppression. Classification and duplicate review still block publication.
Open the official source ↗Publication gate
SampleAt least 100 included observations
CoverageAt least 70% usable positive valuation coverage
PrecisionAt least 90% on a human-reviewed stratified sample
DuplicatesLess than 5% unresolved duplicate-project rate
DisclosureSource, dates, sample, exclusions, method, and limits visible
National calculator work continues independently. Local evidence will be added only after the full gate passes, never because a page needs a number.