Data sources and attribution

Last updated: 24 September 2026

CompoundVision's forecasts, accuracy scorecards and revenue estimates are built from data published by grid operators, market platforms, weather services and public plant registers. This page lists each source, what we use it for, and its attribution statement. Where a provider's licence prescribes the wording, it is reproduced exactly. The providers listed here do not endorse CompoundVision. For the conditions that apply to each dataset, read the provider's own licence or terms, linked below. Questions: christopher@compoundingenergy.com.

Jump to: Great Britain · Europe · United States · Weather and climate · Power plant registers · Map

Great Britain

Elexon — BMRS and the Insights Solution

What we use it for GB generation by fuel type (Skill and Backtest views); per-unit metered output (B1610) for per-farm power-curve calibration and the GB Accuracy Proof scorecard; system wind forecast and balancing-action data used to screen curtailed hours out of that scorecard; the BM Unit register behind /v1/reference/gb/bmu-map; and Market Index Data, used as the GB day-ahead price in the Revenue view. Market Index Data is supplied to Elexon by EPEX SPOT and Nord Pool.

Attribution statement (prescribed by the licence)

Contains BMRS data © Elexon Limited copyright and database right 2026

Licence: Licence to use BMRS open data · Source: bmrs.elexon.co.uk

National Energy System Operator (NESO) — data portal

What we use it for Estimates of embedded (distribution-connected) wind and solar output, added to Elexon's metered generation to form the GB actual totals in the Skill and Backtest views; NESO's published wind forecasts, collected to evaluate our own forecasts.

Attribution statement (prescribed by the licence)

Supported by National Energy SO Open Data

Licence: National Energy SO Open Data Licence v1.0 · Source: NESO data portal

PV_Live — Sheffield Solar, University of Sheffield

What we use it for National GB solar generation estimates, used to calibrate our GB solar totals. Changes made: the estimates are compared with our forecasts to derive calibration factors.

Attribution statement

Contains PV_Live data from Sheffield Solar, University of Sheffield, licensed under CC BY 4.0

Licence: CC BY 4.0 · Source: PV_Live

Europe

ENTSO-E Transparency Platform

What we use it for Actual generation by production type for European countries (Skill and Backtest views); per-unit generation for the EU Accuracy Proof scorecard and per-farm power-curve calibration; day-ahead prices per bidding zone (EU Revenue view); system operators' day-ahead wind and solar forecasts, collected to evaluate our own forecasts; generating-unit codes used to match farms to their metered units. Data on the platform is submitted by European system operators, power exchanges and other data providers.

Attribution statement

Source: ENTSO-E Transparency Platform (transparency.entsoe.eu)

Terms: Transparency Platform legal terms and conditions · Source: transparency.entsoe.eu

United States

U.S. Energy Information Administration (EIA)

What we use it for Hourly wind and solar generation by balancing authority from the Hourly Electric Grid Monitor (Form EIA-930), used to score US forecasts (Skill and Backtest views); the Form EIA-860 and EIA-860M generator inventories, part of the US wind and solar fleet; Form EIA-923 monthly plant generation, the metered comparison and calibration reference in the Climatology view.

Attribution statement

Source: U.S. Energy Information Administration (Sep 2026)

EIA asks for an acknowledgment that includes the publication date. We retrieve EIA-930 data every hour, so the date shown is the current month.

Terms: EIA copyrights and reuse · Source: Hourly Electric Grid Monitor

ERCOT — Electric Reliability Council of Texas

What we use it for Day-ahead hub prices (Revenue view) and system fuel mix, used to score forecasts (Skill and Backtest views).

Attribution statement

Contains data from the Electric Reliability Council of Texas (ERCOT)

Terms: ERCOT terms of use

California ISO (CAISO)

What we use it for Day-ahead prices from OASIS (Revenue view, and the reference price for nearby western regions that have no day-ahead market of their own) and fuel-source data, used to score forecasts (Skill and Backtest views).

Attribution statement

Contains data from the California ISO (CAISO)

Terms: CAISO privacy and terms of use · Source: OASIS

Midcontinent Independent System Operator (MISO)

What we use it for Day-ahead prices (Revenue view, and the reference price for nearby south-eastern regions that have no day-ahead market of their own) and fuel mix, used to score forecasts (Skill and Backtest views).

Attribution statement

Contains data from the Midcontinent Independent System Operator (MISO)

Terms: MISO legal and privacy

Southwest Power Pool (SPP)

What we use it for Day-ahead prices (Revenue view) and generation mix, used to score forecasts (Skill and Backtest views).

Attribution statement

Contains data from Southwest Power Pool (SPP)

Terms: SPP terms and conditions

New York Independent System Operator (NYISO)

What we use it for Day-ahead zonal prices (Revenue view) and real-time fuel mix, used to score forecasts (Skill and Backtest views).

Attribution statement

Contains data from the New York Independent System Operator (NYISO)

Terms: NYISO legal notice

ISO New England (ISO-NE)

What we use it for Day-ahead hub prices (Revenue view) and generation fuel mix, used to monitor our data feeds.

Attribution statement

Contains data from ISO New England (ISO-NE)

Terms: ISO New England legal and privacy

Weather and climate

Open-Meteo

What we use it for Numerical weather prediction forecasts and ensembles (wind, solar irradiance, temperature, cloud cover) that drive every forecast, and historical weather records for the Climatology view. Changes made: we combine several weather models, adjust wind to each turbine's hub height and convert the weather into power output with our own models.

Attribution statement

Weather data by Open-Meteo.com, licensed under CC BY 4.0

Licence: Open-Meteo licence and data sources · Terms: Open-Meteo terms

Open-Meteo builds its data from national weather services' models. These are the ones we use:

Provider and models	Attribution statement	Licence
NOAA National Centers for Environmental Prediction (NCEP): GFS, the GEFS ensemble, HRRR	Contains data from NOAA's National Centers for Environmental Prediction (NCEP)	NOAA / NWS disclaimer
European Centre for Medium-Range Weather Forecasts (ECMWF): IFS, the IFS ensemble	Contains data from the European Centre for Medium-Range Weather Forecasts (ECMWF)	ECMWF open data (CC BY 4.0)
Deutscher Wetterdienst (DWD): ICON, ICON-EU	Contains data from Deutscher Wetterdienst (DWD)	DWD open data
Environment and Climate Change Canada, Canadian Meteorological Centre: GEM	Data Source: Environment and Climate Change Canada	ECCC Data Server End-use Licence
UK Met Office: UKV 2 km (Great Britain only)	Contains data from the Met Office	CC BY-SA 4.0 (as listed by Open-Meteo)
Copernicus Climate Change Service (C3S) at ECMWF: ERA5 and ERA5-Land reanalyses (Climatology view)	Contains data from ERA5 (doi:10.24381/cds.adbb2d47) and ERA5-Land (doi:10.24381/cds.e2161bac), Copernicus Climate Change Service	CC BY 4.0

Power plant registers

Farm names, locations, capacities and turbine details come from public plant registers. Outside the United States they reach CompoundVision through CEAtlas, Compounding Energy's plant database, which compiles the registers below. Changes made: records from different registers are matched, merged and de-duplicated, and missing turbine details are estimated.

U.S. Wind Turbine Database (USWTDB)

What we use it for US wind farm locations and turbine specifications.

Attribution statement (as requested by the publisher)

Map services and data are available from U.S. Wind Turbine Database, provided by the U.S. Geological Survey, American Clean Power Association, and Lawrence Berkeley National Laboratory via https://energy.usgs.gov/uswtdb

Source: energy.usgs.gov/uswtdb · doi:10.5066/F7TX3DN0

U.S. Large-Scale Solar Photovoltaic Database (USPVDB)

What we use it for US solar farm locations and array specifications.

Attribution statement (as requested by the publisher)

Map services and data are available from Large-Scale Solar Photovoltaic Database, provided by the U.S. Geological Survey and Lawrence Berkeley National Laboratory via https://energy.usgs.gov/uspvdb

Source: energy.usgs.gov/uspvdb · doi:10.5066/P9IA3TUS

Renewable Energy Planning Database (REPD) — Department for Energy Security and Net Zero

What we use it for GB wind and solar farms, their status and turbine details.

Attribution statement (prescribed by the Open Government Licence)

Contains public sector information licensed under the Open Government Licence v3.0.

Licence: Open Government Licence v3.0 · Source: Renewable Energy Planning Database: quarterly extract

Offshore wind lease areas — The Crown Estate and Crown Estate Scotland

What we use them for Locations of GB offshore wind projects that the REPD lists without coordinates: each is placed at the centroid of its seabed lease area.

Attribution statements (prescribed by the licences)

Contains data provided by The Crown Estate that is protected by copyright and database rights.

Contains public sector information, licensed under the Open Government Licence v3.0, from Crown Estate Scotland

Licences: The Crown Estate Open Data Licence (GIS) v1.1 · Open Government Licence v3.0 · Sources: Wind Site Agreements (England, Wales & NI), The Crown Estate · Offshore Wind (Crown Estate Scotland)

Marktstammdatenregister (MaStR) — Bundesnetzagentur

What we use it for German wind and solar units, their locations, capacities and turbine models.

Source note (in the form the licence prescribes)

Bundesnetzagentur, Marktstammdatenregister (https://www.marktstammdatenregister.de/MaStR/Datendownload), Datenlizenz Deutschland – Namensnennung – Version 2.0 (dl-de/by-2-0, www.govdata.de/dl-de/by-2-0); data modified: units aggregated to farms by Compounding Energy

Licence: dl-de/by-2-0 · Source: MaStR data download

Other national registers

What we use them for Wind and solar farms in France, Sweden, Denmark, the Netherlands, Ireland and Norway.

Attribution statements

Contains data from the Registre national des installations de production et de stockage d'électricité, published by RTE and the French distribution system operators on ODRÉ (Open Data Réseaux Énergies)

Contains data from Vindbrukskollen, the Swedish county administrative boards' wind power register (vbk.lansstyrelsen.se)

Contains data from the Danish Energy Agency (ens.dk)

Contains data from RIVM, the Dutch National Institute for Public Health and the Environment (rivm.nl)

Contains data from the Sustainable Energy Authority of Ireland (seai.ie)

Contains data from the Norwegian Water Resources and Energy Directorate, NVE (nve.no)

Pan-European and global plant databases

What we use them for Wind and solar farms across Europe where no national register is used, and cross-checks between registers.

Attribution statements

Contains data from the Global Integrated Power Tracker, Global Energy Monitor (globalenergymonitor.org)

Contains data compiled by powerplantmatching, part of the PyPSA project (github.com/PyPSA/powerplantmatching)

Map

Esri World Light Gray and Dark Gray Canvas basemaps

What we use it for The background map on the globe.

Attribution statement (as published with the map service)

Esri, HERE, Garmin, (c) OpenStreetMap contributors, and the GIS user community

Terms: Esri World Light Gray Canvas · OpenStreetMap copyright