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Powering Denmark’s first net-zero energy building

VisBlue

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VisBlue is a spinout company with deep roots in both Aarhus University and the University of Porto. VisBlue produces Vanadium Redox Flow batteries for energy storage based on a patented invention.

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VisBlue's battery solution is installed in Housing+ - a zero-energy apartment building in Copenhagen

Housing+ is an apartment building just outside of Copenhagen and it is Denmark’s first net-zero energy building. The owner is Realdania By & Byg, and inside the building a VisBlue battery has been installed. In addition to being energy-neutral, the building also produces electricity for the residents’ use of electrical appliances such as mobile chargers, vacuum cleaners and lighting. The building consists of 10 apartments, amassing approximately 1,200 square metres distributed across 4 storeys.

The project came about because Realdania wanted to tackle the challenge of building energy efficient housing. With Housing+, Realdania has managed to come as close to a self-sufficient building as possible, in particular due to its partners, VisBlue being one of them. This means that the output from the building coming from the solar panels, correlates with the electrical consumption of the residents. The degree of self-sufficiency has only been reachable due to VisBlue’s Vanadium Redox Flow Battery. With the flow battery, the output from the solar panels is doubled from 25% to 50% which means a great deal on the bottom line. Due to this doubling in output, the residents will save around 10.000 DKK ($1,580 or £1,190) annually.

VisBlue has just installed a generation 2 Vanadium Redox Flow Battery at Housing+, optimizing the first battery that was installed in April 2016.

Want to know more? Read the full story here

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