Japan

Japan’s Rinnai has unveiled what it claims is the world’s first 100% hydrogen combustion technology for residential water heaters. It is currently using the hydrogen water heater in demonstration projects in Australia, prior to commercialization.

Japan’s Arth has designed an autonomous habitation module that produces water in places without energy and water infrastructure. The company said the residential unit could also be used as an emergency evacuation site.

The new prototype uses a triple-junction compound design, which sandwiches the solar cell between layers of film. The module is expected to be used in a variety of vehicles, an application that demands high efficiency and lightweight construction. Its conversion efficiency bests that of a similar Sharp module developed in 2016, which notched an efficiency of 31.17%, at the time a world record.

The Indian sustainable energy company has signed an agreement with the Japanese ship operator to transport green ammonia from its projects to customers globally.

Japanese glass manufacturer AGC has developed a building-integrated PV (BIPV) panel for different building requirements. It can be installed on facades, canopies, and curtain walls where normal glass can be placed.

Under their clean energy partnership, both countries also agreed to cooperate in the disposal, recycling, and reclamation of valuable materials from batteries, solar panels, turbine blades, and electronics.

Panasonic has unveiled a new product in Japan with a PV-based charging function that uses a heat pump and hot water storage unit to save energy by maintaining bathwater temperatures at constant levels.

Wood Mackenzie has predicted solar equipment cost increases will ease back after last year saw the average cost of solar electricity rise for the first time in the Asia-Pacific region.

Adani Green Energy has completed the acquisition of 5 GW of solar and wind assets from SB Energy India for $3.5 billion, marking the largest renewables M&A deal in the country. The acquisition swells Adani’s operational capacity by 46%.

Japanese scientists have developed a new lithium-sulfur battery by using titanium oxide and titanium nitride to prevent the formation of polysulfides during the fabrication process. This allows the battery to retain 85% of its capacity after 500 cycles at 2 C.