EC Energy Group (WEC), Wärtsilä, the Electric Power Research Institute (EPRI) and Burns & McDonnell have agreed to partner to carry out hydrogen fuel testing in reciprocating engines at the A.J. Mihm power plant in Michigan, USA. WEC’s 55 MW plant currently operates with three Wärtsilä 50SG engines that run on natural gas. It was placed into service in March 2019. The companies have agreed to test fuel blends of up to 25% hydrogen volume mixed with natural gas. The engine manufacturer already carries out hydrogen blending tests at facilities in Vaasa, Finland and Bermeo, Spain.