If it works, don’t fix it
When Mr. Nilsson built his off-grid house, he asked Nordic hydrogen pioneers Green Hydrogen Systems (GHS) to provide an electrolyzer for the system. The electolyzer is the key technology that uses solar power to convert water into permanently storable hydrogen fuel. The electrolyzer that powers Mr. Nilsson’s home is a small 5 kW PEM system, scaled to produce the energy it takes to power the home.
However, Mr. Nilsson explains, “the officials in Mariestad needed more power – enough to fuel the municipality’s 15 cars, plus another handful of privately owned hydrogen cars in the area. And then some – because the municipality had calculated that a fleet of hydrogen-powered vehicles would become financially competitive with traditional cars when the fleet reached 50 vehicles.” In other words, the system needed to be scalable as well.
As it turns out, scalability is one of the key advantages of the GHS concept. As system integrator, Nilsson Energy could start with a single GHS HyProvide A-60 – installed on site at the Mariestad refueling station – and then scale up by adding additional units as needed. Fifteen cars today, becomes 30 next year, 60 the year after, and so on.
GHS CEO Niels-Arne Baden notes that, in addition to scalability, the HyProvide A-Series also provides another advantage: “The A-Series isn’t just the only fully standardized, modular and scalable electrolyzer on the market. It also delivers the lowest levelized cost of hydrogen available anywhere for green hydrogen. So Nilsson Energy and their client in Mariestad are getting producing tomorrow’s green hydrogen fuel at a price much lower than hydrogen delivered in pressurized cylinders or tube trailers.”
Mr. Nilsson concurs, also noting that the hydrogen plant is located on site and powered by on-site solar panels and requiring only water as a feedstock. “So it’s an off-grid system with zero reliance on fuel or other supplies delivered by costly, high-emission truck transportation,” he explains.