Hitachi launches CO2 heat pump water heaters with solar-friendly tariff controls

Hitachi has launched its new Y-series EcoCute CO2 heat pump water heaters in Japan, with 370-liter and 460-liter models available from November 2026. The upgraded models feature expanded support for daytime electricity tariffs and solar-linked energy management systems, designed to align water heating with peak solar generation periods. The new units maintain compatibility with Hitachi's home energy management systems and come with a five-year manufacturer warranty.