Renewable energy hydrogen storage system, Public housing buildings in Sweden to benefit.

Clean energy initiatives enable renewable energy to operate throughout the year.

Six public housing buildings in Vårgårda in south-western Sweden will benefit from renewable-energy hydrogen storage. The building will run by renewable electricity throughout the whole year through electricity and heat from a microgrid that incorporates solar panels, batteries, heat pumps, hydrogen production and storage, and fuel cells.

172 apartments are supplied with clean power.

Nilsson Energy and Vårgårda municipality will provide a network capable of supplying renewable energies for 8760 hours a year in 172 housing units. A RE8760 device combined with Nilsson’s Energy will store solar-generated renewable energy until it is required.

Both buildings will have solar photovoltaic panels roughly 5400 square feet. The solar energy generated over the long summer days of Sweden will provide the buildings with electricity and battery charging. In the meantime, an electrolyzer and compressor are supplied with an excess of energy for central generating and storing hydrogen in winter.

Renewable energy storage hydrogen buildings during the winter months. This is accomplished by supplying the stored hydrogen to the 5 kilowatts (kW) power generating cells of each house.

In addition, the waste heat that comes from this process increases the heating supplied by a geothermal heat pump to the houses. The six buildings are connected to a microgrid that gives the energy flow control system RE8760 flexibility and protection of supply.

Martina Wettin, one of the founders of Nilsson Energy, said: “The knowledge and awareness that hydrogen[ is] good at store renewable energy is growing in popularity as we speak.”

The company did not use this tool for the first time. Prior to the commissioning of the first off-grid solar-generated hydrogen refueling station in Mariestad, Sweden, Nilsson Energy’s co-founders have been.