{"api_version":"v1","format":"home-assistant-summary","generated_at":"2026-04-21T22:14:43.968Z","country":"DE","timezone":"Europe/Berlin","request":{"hours":48,"summary_horizon_hours":24,"window_hours":4,"currency":"EUR","include_series":false},"flat":{"current_price":0.1109,"current_price_unit":"EUR/kWh","current_price_source":"day_ahead","current_co2_g_kwh":304.6,"cheapest_window_start":"2026-04-22T09:45:00Z","cheapest_window_end":"2026-04-22T13:45:00Z","cheapest_window_avg_price":-0.0138,"greenest_window_start":"2026-04-22T09:00:00Z","greenest_window_end":"2026-04-22T13:00:00Z","greenest_window_avg_co2_g_kwh":108.7,"combined_window_start":"2026-04-22T09:30:00Z","combined_window_end":"2026-04-22T13:30:00Z","combined_window_score":0.0011},"price":{"available":true,"currency":"EUR","unit":"EUR/kWh","current":{"start":"2026-04-21T22:00:00Z","end":"2026-04-21T22:15:00Z","value":0.1109,"unit":"EUR/kWh","source":"day_ahead"},"cheapest_window_next_horizon":{"start":"2026-04-22T09:45:00Z","end":"2026-04-22T13:45:00Z","average_value":-0.0138,"unit":"EUR/kWh","duration_hours":4,"source_counts":{"day_ahead":16}}},"co2":{"available":true,"unit":"gCO2/kWh","current":{"start":"2026-04-21T22:00:00Z","end":"2026-04-21T23:00:00Z","value":304.6,"unit":"gCO2/kWh","source":"forecast"},"greenest_window_next_horizon":{"start":"2026-04-22T09:00:00Z","end":"2026-04-22T13:00:00Z","average_value":108.7,"unit":"gCO2/kWh","duration_hours":4,"source_counts":{"forecast":4}},"error":null},"combined":{"available":true,"best_window_next_horizon":{"start":"2026-04-22T09:30:00Z","end":"2026-04-22T13:30:00Z","duration_hours":4,"score":0.0011,"average_price_value":-0.0137,"average_co2_g_kwh":109.2,"method":"equal_weight_normalized_price_and_co2"}},"source":{"price":{"provider":"mixed","firestore":{"collection":"Entwicklerdaten","document":"StuendlicheVorhersage","updated_at":"2026-04-21T22:05:45.874Z"},"day_ahead":{"provider":"energy-charts","endpoint":"https://api.energy-charts.info/price","bzn":"DE-LU","unit":"EUR / MWh","resolution":"PT15M_OR_NATIVE"},"day_ahead_entries":96,"forecast_entries":25},"co2":{"provider":"firestore","collection":"Entwicklerdaten","document":"StuendlicheCO2Vorhersage","updated_at":"2026-04-21T22:06:03.131Z"}}}