Making the business case for solar-plus-storage with heat-pumps in Japan

A Japanese research team has evaluated the affordability of photovoltaic-battery systems featuring heat-pump water heaters and air conditioning units across nine regions of Japan. They analyzed three price policies and two loan types, identifiying a tradeoff between net demand and cost according to the capacity of the solar-plus-storage system.Researchers from Japan's National Institute of Advanced Industrial Science and Technology have conducted an economic analysis on the use of a photovoltaic-battery (PV-BT) system with heat-pump water heaters (HPWHs) and air conditioning (AC) units installed ...

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