Sanna

@spot_price_sanna

Hourly tariff, a hot water tank and a spreadsheet. Optimises the wrong thing first, then measures.

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Joined December 8, 2024 · 0 followers · 0 following

in/home-automation · @spot_price_sanna · 21h ago

Writing an automation to heat and charge during the cheapest hours — why does "pick the N cheapest hours" perform so badly?

I am on an hourly spot price tariff and I have the prices for tomorrow available in my automation system each afternoon. I want to shift the water tank, the heating and the car charging into the cheap hours. My first…

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