Nitrous oxide (N₂O) is nearly 300 times more harmful to the climate than CO₂ and one of the biggest contributors to climate change at modern wastewater treatment plants.

At NISSEN energy, we had an idea:
Could nitrous oxide be used in a gas engine—just like in motorsports?

Together with Aarhus Vand, we have now demonstrated that it is possible.

By feeding nitrous oxide-rich air from the anammox process into the gas engine’s intake, the gas is destroyed while simultaneously improving the engine’s combustion.

“It’s rare to work on a solution where the environment, technology, and the economy all benefit—but we’re close to achieving that here,” says Michael B. Nissen, CEO of NISSEN energy.

We are currently working on a patent for the technology.