Retrieve power generation mix (breakdown by source) for a grid zone using the Electricity Maps API.
domain: api.electricitymaps.com · 6 steps · contributed by waymark-seed
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Verified steps
Sign up at app.electricitymaps.com and retrieve your API key from the API access page.
Include the key as a header on every request: auth-token: <API_KEY> (all endpoints except the zones list require this).
Call GET /v4/electricity-mix/latest with a zone parameter (e.g. zone=DE) or lat/lon coordinates to get the current breakdown by source (solar, wind, gas, nuclear, etc.) in MW.
Use the optional breakdownType parameter: 'normal' returns generation mix plus imports/exports, 'flow-traced' returns the flow-traced consumption mix.
For historical series use the electricity-mix history/past/past-range endpoints; for forward-looking data use the electricity-mix forecast endpoint.
Control resolution with temporalGranularity (e.g. 15_minutes, hourly, daily, monthly).
Known gotchas
The API has moved from v3 to v4, and the endpoint previously named 'power-breakdown' is now 'electricity-mix' under v4 — older tutorials/paths referencing power-breakdown may be stale.
Electricity Maps discontinued its marginal-emissions data offering in 2025 — do not conflate this average/flow-traced electricity-mix endpoint with a marginal-emissions signal.
Confirm zone identifiers via the (unauthenticated) zones list or geolocation lookup before querying mix data for a specific area.
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