Environment · head-to-head
Danish data service Energi vs UK Carbon Intensity
Energi Data Service is the Danish transmission system operator Energinet's open-data platform, publishing dozens of live datasets — day-ahead power prices, grid emissions, consumption, and more — as a free public JSON API with no key required. Its older Elspotprices dataset was retired after the Nordic market's move to 15-minute settlement on 2025-09-30, superseded by the still-live DayAheadPrices dataset.
This is the official carbon intensity forecast and outturn API for Great Britain's electricity grid, published by National Grid ESO, giving live and forecast gCO2/kWh figures nationally and regionally. It's a fully open government data feed with no key required.
| Danish data service Energi | UK Carbon Intensity | |
|---|---|---|
| Authentication | None | None |
| Pricing | free | free |
| Formats | JSON | JSON |
| CORS | no | yes |
| HTTPS | Yes | Yes |
UK Carbon Intensity supports CORS, while Danish data service Energi doesn't — pick UK Carbon Intensity for direct browser calls.