DoesTheMath

OpenEI Utility Rate Database (URDB)

The actual filed tariff (tiered pricing, fixed charges, effective dates) of the utility serving a given postal code -- the input that turns a spec sheet into a real annual cost.


License class
P — public domain / open CC BY 4.0 -- attribution required on every figure derived from it.
Attribution
Required. Rate data from the OpenEI Utility Rate Database (National Laboratory of the Rockies / US DOE), CC BY 4.0.
Fetch cadence
Monthly
Last fetched
sources/snapshots/openei-urdb.yml (observed_at)

Worth knowing

  • `is_default=true` can return an expired tariff; this project rejects any rate whose `enddate` has passed.
  • Cost coverage (the share of postal codes with a verified, not state-average, tariff) is a separate denominator from model coverage and is never quoted in the same sentence.

Last updated