Updates & Changelog
Every calculator launch, data refresh, and correction — in reverse chronological order.
2026-04-28
LaunchLaunched Heat Pump vs Gas Furnace calculator, Electricity Bill Calculator, and EV Home Charging Cost calculator. Added category hub pages for Electricity, EV Charging, and Heating & Cooling. Added sitemap.xml.
2026-04-27
LaunchInitial site launch. Deployed kWh Cost Calculator with US/UK/CA/AU rate support. Built all core PHP includes: config, header, footer, nav, seo, rates, formulas, and component partials.
2026-04-27
DataAll electricity and gas rate defaults set from official sources: EIA (US), Ofgem (UK), NRCan (CA), AER (AU). Rates verified April 2026.
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