This dataset collects information about energy supply prices by days and hours since June 1st 2021, when prices were changed by the government, which also carried to an inflation of the prices. This dataset pretends to be a reference when studying this inflation, by comparing, for example, hour prices with the performance of energy suppliers' stations, determining whether this inflation is justified or not. Dataset structure goes as follows: Tarifa. There are two tax types identified by a three-letter code: "Península, Baleares y Canarias" (pbc) and "Ceuta y Melilla" (cym). Fecha. Date of the extracted data in DD-MM-YYYY format. Hora. Hour of the extracted data (int type from 0 to 23). Precio total. Total tax price in kWh/€. Mercado diario e intradiario. Price breakdown corresponding to diary and intraday markets in kWh/€. Servicios de ajuste. Price breakdown corresponding to adjust services in kWh/€. Financiación OS. Price breakdown corresponding to OS financing in kWh/€. Financiación OM. Price breakdown corresponding to OM financing in kWh/€. Coste Comercialización variable. Price breakdown corresponding to variable commercialization cost in kWh/€. Peajes y cargos. Price breakdown corresponding to tolls and charges in kWh/€. Pago por capacidad. Price breakdown corresponding to capacity payment in kWh/€. Excedente o deficit subastas renovables. Price breakdown corresponding to surplus or deficit of renewable energy auctions in kWh/€. Servicio de interrumpibilidad. Price breakdown corresponding to interruptibility service in kWh/€.