That was not my understanding. Unless this installation was supposed to be producing fuel on site somehow, fuel cells are a mechanism for turning fuel into electricity.
In Motorsport a gas tank is called a fuel cell. That may be where the confusion lies
The literally dirty secret is that a Bloom fuel cell is a device for turning methane into hydrogen on demand to fuel a hydrogen fuel cell. It's still emits CO2 and oxides of nitrogen like a gas turbine. They should be a lot quieter though.