nordpool_diff
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Transforms electricity spot price into thermostat control signal. Home Assistant custom component.
this is more of a feature request (if it doesn't exist already): Beside future hours, I'd like to take into account x past hours. So to have a reference window...
Currently if filter is longer than available data (e.g. filter length 15 and at 14:00 only 10 hours are available), data is padded using the last available element (typically 23-24...
https://developers.home-assistant.io/docs/core/entity/sensor/#long-term-statistics
https://www.nordpoolgroup.com/en/trading/transition-to-15-minute-market-time-unit-mtu/ Spot prices are calculated on 15 minute intervals starting from 11.6.2025. How to handle this on nordpool_diff depends on how exactly https://github.com/JaccoR/hass-entso-e and https://github.com/custom-components/nordpool shall handle this.