NVE Open Data APIs

NVE Open Data APIs

NVE (the Norwegian Water Resources and Energy Directorate, api.nve.no) publishes a family of JSON APIs covering electricity certificates, flood/landslide/avalanche warnings, regObs observations, hydrological data, grid-tariff statistics and reservoir-filling statistics. A live reservoir-statistics query confirms weekly filling percentages by price area.

Coverage

Norwegian reservoir-filling statistics by price area, hydrological data, flood/landslide/avalanche warnings, regObs observations and grid-tariff statistics, confirmed live today via the reservoir-statistics endpoint (weekly filling percentage, capacity and next-publication date by price area). NVE's own page lists the themes currently on api.nve.no (Signal Lab translation in brackets): "Foreløpig finner du data knyttet til følgende temaer på api.nve.no Elsertifikater Flomvarsling Jordskredvarsling Snøskredvarsling regObs webAPI (observasjoner) Hydrologiske data Nettleiestatistikk Vassmagasinstatistikk" [So far, you will find data related to the following themes on api.nve.no: electricity certificates, flood warnings, landslide warnings, avalanche warnings, regObs observations (regObs webAPI), hydrological data, grid-tariff statistics, reservoir statistics]. Authentication varies per API on the portal; the reservoir-statistics endpoint used here needs no key. History start and update frequency: Not stated.

Verdict

JSON APIs from NVE (the Norwegian Water Resources and Energy Directorate) covering reservoir-filling statistics by price area, hydrological data, flood/landslide/avalanche warnings, regObs observations and grid-tariff statistics; a reservoir-statistics query was confirmed live today. Licensed NLOD-2.0: data.norge.no's NLOD page links the current Norwegian and English 2.0 legal texts; NVE's own page says (Signal Lab translation in brackets): "Data som ligger på api.nve.no er lisensiert under Norsk lisens for offentlige data (NLOD) som er kompatibel med CC Navngivelse 3.0 Norge (CC BY 3.0)." [Data on api.nve.no are licensed under the Norwegian Licence for Open Government Data (NLOD), compatible with CC Attribution 3.0 Norway (CC BY 3.0).] Attribution: NVE's page says (Signal Lab translation in brackets): "Når du bruker data skal du så langt det lar seg gjøre lenke til den aktuelle tjenesten." [When you use the data, you should, as far as possible, link to the relevant service.] Authentication varies per API on the portal; the reservoir-statistics endpoint used here needs no key. Rate limits: HydAPI's (the hydrological-data API's) user documentation says: "Throttling: The API will only support a fixed number of requests from a client (API-key) per time unit, and will deny request when this limit is reached. Clients that violate this policy will be temporarily blocked by the API, and an error-message will show. Each response will contain information in the header (x-rate-limit-limit, x-rate-limit-remaining, x-rate-limit-reset)." No numeric value is stated; the keyless reservoir-statistics endpoint used here is a separate API and is not documented as subject to this HydAPI throttling. Signal Lab links only.