Ballard Power Systems announced that it has signed Equipment Sales Agreements for the provision of an initial 500 FCgen-1020ACS fuel cell stacks to adKor GmbH and SFC Energy AG, to be integrated into adKor's Jupiter backup power systems for deployment at radio tower sites in Germany through the end of 2021. Contracts have been awarded to adKor for the supply of fuel cell backup power systems to support an initial tranche of 500 radio tower sites in Germany - with the potential for a total of up to 1,500 radio tower sites - and adKor has sub-contracted a portion of the work to SFC Energy. As a result, adKor and SFC Energy have signed development partnership and licensing agreements, will share production activities for the supply of Jupiter systems and are developing product line extensions. As production work is committed, adKor and SFC Energy each plan to place purchase orders with Ballard for 2.9 kilowatt FCgen®-1020ACS fuel cell stacks, with each Jupiter backup power system utilizing from 1-to-3 of these fuel cell stacks. German regulations require radio tower sites to have a minimum of 72 hours of backup power, to ensure radio communications for critical users in the event of a power blackout.