Z&F Consulting approached Geisinger Medical Center with a proposal to provide a cogeneration plant. The cogen was a way for Geisinger to save on energy costs. At first, the facility did not buy into the savings predicted by Z&F. However, after Z&F provided significant documentation on their energy savings calculations, Geisinger signed onto the project. Z&F provided a design for a 4.5MW combustion turbine, 22,000 lb/hr waste heat boiler, and a 400 hp gas compressor. All of this resulted in savings of $2.2 million annually.
See link to article by Al Neuner