Power Cost Sweden

Power Cost Sweden shows what your electricity really costs – quarter hour by quarter hour – based on the spot price and your own contract. This app only works in Sweden: it uses the Swedish bidding zones SE1–SE4, Swedish kronor, Swedish public holidays and Swedish price sources. ELECTRICITY PRICE - Spot price per quarter hour from ENTSO-E (free API key) or elprisetjustnu.se, converted with the European Central Bank's EUR/SEK rate. - Your contract: grid transfer fee, energy tax, supplier markup, VAT, fixed monthly fees and winter peak tariff (weekdays, not on public holidays). Amounts can be entered including or excluding VAT. - "Price now" shows what a kWh really costs including your fixed fees; "Variable price" shows what one more kWh costs. - Electricity price device, flow cards (price changed, price below X, one of today's N cheapest/most expensive hours) and a dashboard widget with a price chart where the spot part of each bar is shown separately. - Ready-made formulas to copy into Homey Energy's own import and export price. WHAT IT COSTS Add the devices you have – each one follows an existing Homey device: - Household: follows your grid meter (any Homey Energy main meter). Bought, sold, fixed fees and net cost per day, month and year. - Battery: follows a home battery. What the battery earns by moving electricity in time. - Electric car: follows your charger. Charging cost, how much came from your own battery/solar, and the last charging session. - Solar: follows your inverter. Value of solar you use yourself and income from solar you sell. Energy is booked per quarter hour from the meters' readings and valued with that quarter hour's price. Own energy (solar, battery) used in the house, car or battery is valued at the variable purchase price; sold energy at the spot price plus any extra you enter. NOTES - Solar has not been tested with real data yet: the developer's SolarEdge inverter cannot be read in Homey right now, because SolarEdge is retiring its old cloud API (November 2026) which the SolarEdge Homey app uses. The Solar device works with any Homey device that reports produced energy (meter_power), e.g. other inverter apps or SolarEdge via Modbus TCP. - The app needs the "Homey API" permission to read the energy meters of the devices you choose. It does not control any devices. - An optional web page (port 8082) with log, price chart and cost details can be enabled in the app settings. It has no login, so only enable it on a trusted network. Support: bob.ornborg@hotmail.se