Starting today, Plug Power Inc. , a leader in providing clean, reliable energy products, will be showcasing its comprehensive GenKey hydrogen fuel cell solution in booth 672 during the ProMat 2015 tradeshow taking place March 23-26 at Chicago's McCormick Place South. Plug Power's GenKey solution is comprised of three separate elements: GenDrive fuel cell units, GenFuel hydrogen fuel and infrastructure, and GenCare maintenance service.