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day-ahead-prices

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Legolas-2025 / EPrices

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ESP32 + ESPHome firmware that fetches day-ahead electricity spot prices from the Energy-Charts API and exposes them as Home Assistant sensors. No token, no subscription. Supports 15-min and hourly resolution, NVS persistence, auto-retry, DST-safe, and any Energy-Charts bidding zone.

home-automation iot esp32 smart-home home-assistant esp-idf electricity-prices energy-management spot-price nvs esphome energy-charts energy-price day-ahead-prices esphome-yaml
  • Updated Apr 28, 2026
  • C++

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