{ "openapi": "3.1.1", "info": { "title": "Energy Grid Explorer API", "version": "1.0.0", "summary": "Generation mix, load, renewable share, cross-border flows and power prices for European grids.", "description": "Every endpoint performs the same calculation as the human page and returns inputs, result, units, assumptions, sources, warnings and computedAt. MCP endpoint: /mcp." }, "servers": [ { "url": "https://energygridexplorer.usefulweb.site" } ], "paths": { "/api/v1/calculate": { "post": { "operationId": "calculate", "summary": "Generation mix, load, renewable share, cross-border flows and power prices for European grids.", "description": "Pulls public net electricity generation per source, load, cross-border physical flows and day-ahead prices from the Energy-Charts API by Fraunhofer ISE for a country and date range, then computes energy per source, renewable share, peak and minimum load, net imports per neighbour and price statistics. Paste saved Energy-Charts JSON to analyse offline.\n\nMethodology:\n- Live data: GET https://api.energy-charts.info/public_power?country=…&start=…&end=… (net public generation per source in MW, usually 15-minute steps), /cbpf (cross-border physical flows in GW, positive = import) and /price?bzn=… (day-ahead price, EUR/MWh). Dates are local (Central European) calendar days, end inclusive.\n- Energy per source = Σ(MW × step) using the median sampling step; load, residual load, share series, scheduled trading and pumped-storage charging are excluded from generation.\n- Renewable share = renewable energy ÷ total generation, counting hydro run-of-river, reservoir, biomass, geothermal, wind and solar fully and waste at 50 % (biogenic share). This reproduces Energy-Charts' own \"Renewable share of generation\" series, whose plain mean is shown for comparison.\n- Peak / minimum load are the highest and lowest samples of the \"Load\" series with their UTC timestamps; prices report mean, extremes and the number of negative-price intervals.\n- Prices are only requested for bidding zones Energy-Charts publishes under CC BY 4.0 (SMARD.de data: DE-LU, AT, BE, CH, CZ, DK1, FR, HU, IT-North, NL, NO2, PL, SE4, SI); other zones are marked private/internal use by the API terms.\n- Outages: no keyless public outage API was verified (ENTSO-E Transparency requires a registered security token), so outage data is not provided.", "tags": [ "public-data" ], "x-mcp-tool": "energy_grid_explorer", "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/EnergyGridExplorerInput" }, "examples": { "example1": { "summary": "Germany, 1 Oct 2026 midday (pasted Energy-Charts JSON)", "value": { "source": "pasted", "country": "de", "pastedPower": "{\"unix_seconds\":[1790848800,1790849700,1790850600,1790851500,1790852400,1790853300,1790854200,1790855100,1790856000,1790856900,1790857800,1790858700,1790859600],\"production_types\":[{\"name\":\"Hydro pumped storage consumption\",\"data\":[-1589.9,-2220.2,-2488.5,-3176.3,-3006.0,-2738.7,-3014.6,-2900.1,-2477.4,-1063.5,-530.4,-436.8,-732.1]},{\"name\":\"Cross border electricity trading\",\"data\":[2048.2,1843.7,2148.2,2703.1,3983.9,4178.4,4904.4,5045.5,5272.9,5347.4,5075.1,5226.4,7183.6]},{\"name\":\"Hydro Run-of-River\",\"data\":[1122.5,1111.9,1109.8,1113.8,1111.1,1118.2,1104.1,1101.1,1102.8,1097.9,1078.9,1060.1,1056.6]},{\"name\":\"Biomass\",\"data\":[3721.5,3715.5,3698.3,3688.7,3663.6,3667.1,3659.5,3660.0,3653.3,3659.2,3658.9,3668.0,3667.5]},{\"name\":\"Fossil brown coal / lignite\",\"data\":[8913.6,8918.4,8918.4,8930.0,8926.5,8968.8,9014.4,9023.2,9052.5,9012.6,9053.1,9093.8,9086.2]},{\"name\":\"Fossil hard coal\",\"data\":[3481.9,3383.1,3203.2,2974.7,2894.4,2888.0,2931.5,2946.8,3034.8,3173.1,3322.9,3343.2,3170.0]},{\"name\":\"Fossil oil\",\"data\":[230.7,230.8,230.9,230.3,230.2,230.0,230.1,230.7,232.0,231.7,231.2,222.9,119.1]},{\"name\":\"Fossil coal-derived gas\",\"data\":[347.7,347.4,338.8,342.7,340.4,333.4,332.6,388.4,423.9,426.2,430.7,435.8,440.1]},{\"name\":\"Fossil gas\",\"data\":[5622.5,5602.2,5592.2,5562.9,5511.9,5499.8,5456.2,5462.9,5560.2,5708.7,5675.1,5708.7,5645.4]},{\"name\":\"Geothermal\",\"data\":[13.2,13.2,13.2,13.2,13.2,13.2,13.2,13.2,13.2,13.2,13.2,13.2,13.2]},{\"name\":\"Hydro water reservoir\",\"data\":[4.7,3.5,3.8,4.8,4.7,5.1,5.3,7.4,6.9,6.7,4.4,5.0,4.7]},{\"name\":\"Hydro pumped storage\",\"data\":[11.8,9.5,9.5,9.5,9.6,9.9,14.7,58.9,130.9,34.6,153.7,94.6,38.2]},{\"name\":\"Others\",\"data\":[132.7,132.4,132.4,132.4,132.4,132.4,132.4,132.4,132.4,132.4,132.7,132.4,132.4]},{\"name\":\"Waste\",\"data\":[1267.3,1269.8,1271.7,1275.2,1275.0,1270.6,1270.0,1267.8,1268.1,1263.0,1261.6,1264.2,1261.1]},{\"name\":\"Wind offshore\",\"data\":[2587.1,2725.8,2791.7,2695.3,2342.7,2244.7,2341.6,2251.5,2478.8,2584.7,2668.5,2657.9,3229.2]},{\"name\":\"Wind onshore\",\"data\":[5458.9,5368.5,5325.4,5267.3,5132.2,4930.4,4911.5,4796.6,4735.9,4691.6,4583.5,4598.6,4485.3]},{\"name\":\"Solar\",\"data\":[26884.6,27149.8,27194.6,26952.3,26494.0,25820.4,24943.3,24151.8,23060.4,22124.0,20922.8,19650.5,18329.3]},{\"name\":\"Load\",\"data\":[64505.5,64119.0,63860.0,63954.7,64183.1,63568.0,63056.5,63155.2,62686.6,63541.9,62723.3,61936.9,62818.8]},{\"name\":\"Residual load\",\"data\":[29574.8,28874.8,28548.3,29039.8,30214.1,30572.6,30860.1,31955.3,32411.5,34141.7,34548.5,35030.0,36775.0]},{\"name\":\"Renewable share of load\",\"data\":[62.6,63.5,63.8,63.1,61.3,60.4,59.6,57.9,56.9,54.7,53.5,52.1,50.0]},{\"name\":\"Renewable share of generation\",\"data\":[67.6,67.8,68.1,68.2,67.8,67.2,66.7,66.0,65.1,64.2,63.2,62.2,62.0]}],\"deprecated\":false}", "pastedPrice": "{\"license_info\":\"CC BY 4.0 (creativecommons.org/licenses/by/4.0) from Bundesnetzagentur | SMARD.de\",\"unix_seconds\":[1790848800,1790849700,1790850600,1790851500,1790852400,1790853300,1790854200,1790855100,1790856000,1790856900,1790857800,1790858700,1790859600],\"price\":[160.89,164.01,160.45,163.41,153.31,152.45,151.37,150.96,152.14,147.09,150.64,151.47,150.03],\"unit\":\"EUR / MWh\",\"deprecated\":false}", "pastedFlows": "{\"unix_seconds\":[1790848800,1790849700,1790850600,1790851500,1790852400,1790853300,1790854200,1790855100,1790856000,1790856900,1790857800,1790858700,1790859600],\"countries\":[{\"name\":\"Austria\",\"data\":[-0.936,-1.08,-1.037,-0.885,-0.44,-0.402,-0.366,-0.332,-0.105,-0.031,-0.002,-0.044,0.012]},{\"name\":\"Belgium\",\"data\":[0.548,0.428,0.228,0.312,-0.094,-0.348,-0.106,-0.366,-0.552,-0.46,-0.654,-0.426,-0.313]},{\"name\":\"Czech Republic\",\"data\":[0.97,0.904,0.968,1.078,1.617,1.753,1.781,1.874,2.088,2.146,2.145,2.353,2.605]},{\"name\":\"Denmark\",\"data\":[2.692,2.751,2.584,2.48,2.429,2.377,2.279,2.298,1.73,1.533,1.123,1.115,2.533]},{\"name\":\"France\",\"data\":[-0.914,-0.901,-0.93,-0.553,-0.579,-0.582,-0.378,-0.292,-0.484,-0.554,-0.529,-0.393,-0.464]},{\"name\":\"Luxembourg\",\"data\":[-0.53,-0.546,-0.512,-0.487,-0.481,-0.461,-0.459,-0.428,-0.412,-0.421,-0.382,-0.386,-0.416]},{\"name\":\"Netherlands\",\"data\":[0.522,0.881,1.218,1.201,1.407,1.709,1.63,1.625,1.951,1.885,2.026,1.96,1.958]},{\"name\":\"Norway\",\"data\":[0.925,0.965,1.006,1.002,0.953,0.874,0.826,0.852,0.819,0.872,1.063,1.191,1.195]},{\"name\":\"Poland\",\"data\":[0.581,0.549,0.648,0.697,1.152,1.286,1.34,1.442,1.599,1.516,1.408,1.644,1.828]},{\"name\":\"Sweden\",\"data\":[0.413,0.414,0.413,0.414,0.421,0.421,0.421,0.422,0.431,0.431,0.431,0.432,0.432]},{\"name\":\"Switzerland\",\"data\":[-1.446,-1.607,-1.417,-1.096,-0.88,-0.981,-0.782,-0.665,-0.975,-0.938,-0.955,-0.933,-0.98]},{\"name\":\"sum\",\"data\":[2.825,2.757,3.17,4.162,5.505,5.646,6.187,6.43,6.089,5.98,5.674,6.512,8.388]}],\"deprecated\":false}", "includePrices": true, "includeFlows": true } } } } } }, "responses": { "200": { "description": "Calculation result envelope.", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/EnergyGridExplorerResult" } } } }, "400": { "description": "Malformed JSON body.", "content": { "application/problem+json": { "schema": { "$ref": "#/components/schemas/Problem" } } } }, "422": { "description": "Invalid input (see errors[]).", "content": { "application/problem+json": { "schema": { "$ref": "#/components/schemas/Problem" } } } }, "429": { "description": "Rate limit exceeded (see Retry-After).", "content": { "application/problem+json": { "schema": { "$ref": "#/components/schemas/Problem" } } } } } } }, "/api/v1/tool": { "get": { "operationId": "getToolDefinition", "summary": "Inputs, output schema and examples for this tool", "responses": { "200": { "description": "Tool definition.", "content": { "application/json": { "schema": { "type": "object" } } } } } } } }, "components": { "schemas": { "Problem": { "type": "object", "description": "RFC 9457 problem details. 422 responses include per-field `errors`.", "required": [ "type", "title", "status", "detail" ], "properties": { "type": { "type": "string" }, "title": { "type": "string" }, "status": { "type": "integer" }, "detail": { "type": "string" }, "code": { "type": "string" }, "errors": { "type": "array", "items": { "type": "object", "required": [ "field", "message" ], "properties": { "field": { "type": "string" }, "message": { "type": "string" } } } } } }, "EnergyGridExplorerInput": { "type": "object", "additionalProperties": false, "properties": { "source": { "title": "Data source", "type": "string", "enum": [ "live", "pasted" ], "default": "live" }, "country": { "title": "Country", "type": "string", "enum": [ "de", "at", "be", "bg", "ch", "cy", "cz", "dk", "ee", "es", "fi", "fr", "gr", "hr", "hu", "ie", "it", "lt", "lu", "lv", "nl", "no", "pl", "pt", "ro", "se", "si", "sk", "uk", "ba", "ge", "md", "me", "mk", "rs", "ua", "xk", "eu" ], "default": "de" }, "startDate": { "title": "From (local date)", "description": "Default: yesterday. Energy-Charts interprets dates in Central European time.", "type": "string", "format": "date" }, "endDate": { "title": "To (local date, inclusive)", "description": "Max 31 days per request.", "type": "string", "format": "date" }, "includePrices": { "title": "Day-ahead prices", "type": "boolean", "default": true }, "includeFlows": { "title": "Cross-border physical flows", "type": "boolean", "default": true }, "pastedPower": { "title": "Pasted /public_power JSON", "type": "string", "maxLength": 3000000 }, "pastedPrice": { "title": "Pasted /price JSON (optional)", "type": "string", "maxLength": 1000000 }, "pastedFlows": { "title": "Pasted /cbpf JSON (optional)", "type": "string", "maxLength": 2000000 } }, "required": [] }, "EnergyGridExplorerResult": { "type": "object", "additionalProperties": false, "required": [ "schemaVersion", "tool", "computedAt", "inputs", "summary", "result", "units", "assumptions", "sources", "warnings", "presentation", "links" ], "properties": { "schemaVersion": { "type": "string", "const": "1.0" }, "tool": { "type": "object", "additionalProperties": false, "required": [ "id", "name", "version" ], "properties": { "id": { "type": "string" }, "name": { "type": "string" }, "version": { "type": "string" } } }, "computedAt": { "type": "string", "format": "date-time" }, "inputs": { "type": "object", "description": "Normalised inputs actually used, including applied defaults." }, "summary": { "type": "string" }, "result": { "type": "object", "additionalProperties": false, "required": [ "country", "countryName", "period", "generation", "mix", "load", "prices", "flows", "outages" ], "properties": { "country": { "type": "string" }, "countryName": { "type": "string" }, "period": { "type": "object", "additionalProperties": false, "required": [ "requestedStart", "requestedEnd", "firstSample", "lastSample", "samples", "stepMinutes" ], "properties": { "requestedStart": { "type": [ "string", "null" ] }, "requestedEnd": { "type": [ "string", "null" ] }, "firstSample": { "type": "string" }, "lastSample": { "type": "string" }, "samples": { "type": "integer" }, "stepMinutes": { "type": "number" } } }, "generation": { "type": "object", "additionalProperties": false, "required": [ "totalGWh", "renewableGWh", "renewableSharePct", "apiRenewableShareOfGenerationPct", "apiRenewableShareOfLoadPct", "netTradingGWh", "pumpedStorageChargingGWh", "residualLoadPeakMW" ], "properties": { "totalGWh": { "type": "number" }, "renewableGWh": { "type": "number" }, "renewableSharePct": { "type": "number" }, "apiRenewableShareOfGenerationPct": { "type": [ "number", "null" ], "description": "Unweighted mean of the Energy-Charts series." }, "apiRenewableShareOfLoadPct": { "type": [ "number", "null" ] }, "netTradingGWh": { "type": [ "number", "null" ], "description": "Scheduled cross-border trading balance (positive = import)." }, "pumpedStorageChargingGWh": { "type": [ "number", "null" ] }, "residualLoadPeakMW": { "type": [ "number", "null" ] } } }, "mix": { "type": "array", "items": { "type": "object", "additionalProperties": false, "required": [ "name", "gwh", "sharePct", "peakMW", "renewableWeight" ], "properties": { "name": { "type": "string" }, "gwh": { "type": "number" }, "sharePct": { "type": "number" }, "peakMW": { "type": "number" }, "renewableWeight": { "type": "number" } } } }, "load": { "type": [ "object", "null" ], "additionalProperties": false, "required": [ "avgMW", "peakMW", "peakAt", "minMW", "minAt", "energyGWh" ], "properties": { "avgMW": { "type": "number" }, "peakMW": { "type": "number" }, "peakAt": { "type": "string" }, "minMW": { "type": "number" }, "minAt": { "type": "string" }, "energyGWh": { "type": "number" } } }, "prices": { "type": [ "object", "null" ], "additionalProperties": false, "required": [ "zone", "unit", "avg", "max", "maxAt", "min", "minAt", "negativeIntervals", "intervals", "license" ], "properties": { "zone": { "type": [ "string", "null" ] }, "unit": { "type": "string" }, "avg": { "type": "number" }, "max": { "type": "number" }, "maxAt": { "type": "string" }, "min": { "type": "number" }, "minAt": { "type": "string" }, "negativeIntervals": { "type": "integer" }, "intervals": { "type": "integer" }, "license": { "type": [ "string", "null" ] } } }, "flows": { "type": [ "object", "null" ], "additionalProperties": false, "required": [ "netImportGWh", "neighbours" ], "properties": { "netImportGWh": { "type": "number" }, "neighbours": { "type": "array", "items": { "type": "object", "additionalProperties": false, "required": [ "name", "netImportGWh", "maxImportGW", "maxExportGW" ], "properties": { "name": { "type": "string" }, "netImportGWh": { "type": "number" }, "maxImportGW": { "type": "number" }, "maxExportGW": { "type": "number" } } } } } }, "outages": { "type": "object", "additionalProperties": false, "required": [ "available", "note" ], "properties": { "available": { "type": "boolean" }, "note": { "type": "string" } } } } }, "units": { "type": "object", "additionalProperties": { "type": "string" } }, "assumptions": { "type": "array", "items": { "type": "string" } }, "sources": { "type": "array", "items": { "type": "object", "additionalProperties": false, "required": [ "title" ], "properties": { "title": { "type": "string" }, "url": { "type": "string" }, "publisher": { "type": "string" }, "retrievedAt": { "type": "string" }, "note": { "type": "string" } } } }, "warnings": { "type": "array", "items": { "type": "string" } }, "presentation": { "type": "array", "items": { "type": "object" }, "description": "Display blocks used by the human page (same data)." }, "links": { "type": "object", "additionalProperties": false, "required": [ "human", "api", "openapi", "methodology" ], "properties": { "human": { "type": "string", "format": "uri" }, "api": { "type": "string", "format": "uri" }, "openapi": { "type": "string", "format": "uri" }, "methodology": { "type": "string", "format": "uri" } } } } } } } }