Ballard Power Systems Inc. announced that it has signed a Product Development Agreement with Hydrogene de France for the development and integration of a multi-megawatt (MW) scale fuel cell system into HDF Energy's Renewstable power plant designed for stationary power applications. HDF Energy's Renewstable® power plant is a multi-MW baseload system enabling large-scale storage of intermittent renewable wind or solar energy in the form of hydrogen ­ through the process of electrolysis ­ as well as electricity generation using that hydrogen feedstock together with a fuel cell system. This power plant can produce zero-emission power on a 24/7 basis from intermittent renewable energy, in order to support electrical grids.