Swedish-based Nilsson Energy AB has chosen ATsolar as its partner in connection with a 250 kWp solar park in Mariestad, Sweden.

The solar park, which is scheduled for completion during the summer of 2018, will be the first of its kind in the world where renewable energy will generate hydrogen (H2) on a large scale for a H2 gas station without being connected to the electric grid.

The design of this next-generation solar park is based on experiences from the last five years, where ATsolar has built over 160 MW of capacity, which now supplies 20,000 homes with green energy. The CEO, Nicolai Faaborg Andresen, looks forward to the new partnership, “This is an exciting project, and we look forward to bringing our core competences into play while working on this ground breaking facility. The new partnership with Nilsson Energy bodes well for the future.”

Nilsson Energy’s Director, Pontus Lundgren, is also thrilled to have a partner as experienced as ATsolar on board, “Experience and scalability is incredibly important since we are about to embark on an exciting new international expansion.”

It is the founder of Nilsson Energy AB, Hans-Olof Nilsson, who has developed the unique concept of Renewable Energy 8760. The solution converts electricity from the solar park to H2 for passenger cars and does not rely on power from the electric grid at all.

For the Mariestad solution, the RE8760 system is meant to supply an existing H2 gas station with H2. The gas station is owned by the local municipality and run by the local energy company, VänerEnergi. 

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Source: ATsolar and Nilsson Energy

Clean energy storage

Using electric power to produce H2 is nothing new, but this will be the first facility in the world that is built on a large scale and supplied by renewable energy.

In order to ensure that the H2 is produced at a steady rate, the electricity that is produced is first stored in the battery. The hydrogen production starts when the battery is at 80% capacity and stops again when it is down to 30%. The H2 gas is compressed to 300 bar in the tank, equivalent to a capacity of 700 kg and which corresponds to a mileage of 70,000 km in a H2 passenger car.

The annual production of H2 from the solar park in Mariestad is expected to reach up to 40 tonnes of H2, or 4,000,000 km worth of mileage in a H2-fuelled passenger car.