Proton Motor Power Systems plc announced that it has signed a Memorandum of Understanding ("MoU") with Electra Commercial Vehicles Limited ("Electra") to develop the zero emission fuel cell truck market in the UK and Ireland. Under the MoU, Electra will act as system integrator to integrate Proton Motor's fuel cell systems into its existing electric truck portfolio. Proton Motor will provide engineering support and training to Electra during the development and qualification of their fuel cell trucks. Both parties will jointly develop a prototype vehicle for serial testing and type approval, which will allow Electra to make an unrestricted number of fuel cell powered trucks. Additionally, Electra will place an initial order for Proton Motor fuel cell systems to be incorporated into five of its trucks. Both parties have also agreed to carry out sales and marketing activities jointly in the UK.