Hitachi launches CO2 heat pump water heaters with solar-friendly tariff controls
Hitachi has announced a new series of residential CO2 heat pump water heaters, the Y series, for the Japanese market. These units feature improved compatibility with electricity tariffs that incentivize daytime energy usage to support solar grid integration.
Why it matters
The integration of smart appliances with renewable energy-friendly tariffs is a critical step in optimizing residential energy consumption and grid stability.
Hitachi Global Life Solutions, a unit of Japanese technology conglomerate Hitachi , has announced a new series of residential EcoCute heat pump water heaters for the Japanese market, with sales set to begin progressively in November 2026.
The new Y series uses natural refrigerant carbon dioxide (CO2) and is available in several configurations. At the top of the range are the BHP-FV37YD and BHP-FV46YD, two fully automatic models featuring direct mains-pressure hot-water delivery. They have storage capacities of 370 liters and 460 liters, respectively.
The 370-liter model is designed for households of around three to five people, while the 460-liter unit is aimed at households of four to six people.
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