ByteCosts cost reference data Source: ECB statistics. Euro foreign exchange reference rates. Each observation date, base currency and original decimal value is retained in /data/cost-references.json. Reference rates are informational, not transaction rates. Derived conversions are ByteCosts calculations, not ECB statistics. The initial observation is dated 10 June 2026, retrieved 5 September 2026. Reuse policy: https://www.ecb.europa.eu/stats/html/escbstats.en.html Source: Eurostat, NRG_PC_204, accessed 5 September 2026. https://doi.org/10.2908/NRG_PC_204 Initial observations: Germany, France and Netherlands, 2025-S2, 2500-4999 kWh annual consumption, taxes and levies included, EUR/kWh. Values are selected and reformatted by ByteCosts; original observations, statistical dimensions and timestamps remain in the JSON metadata. Eurostat is not responsible for ByteCosts selections, transformations, calculations or interpretations of these data. Reuse policy: https://ec.europa.eu/eurostat/help/copyright-notice Source: U.S. Energy Information Administration, retail-sales electricity statistics. Each observation's period, source, original unit and retrieval date is retained in the JSON metadata. Initial observation: December 2025, accessed 5 September 2026, U.S. residential average 17.24 cents/kWh. ByteCosts divides cents by 100 for USD/kWh; this is not a commercial tariff. Reuse policy: https://www.eia.gov/about/copyrights_reuse.php No ECB, Eurostat or EIA logos, photographs or third-party licensed works are included. Attribution does not imply endorsement. New source material and changes to applicable terms must be reviewed before extending the dataset.