YVERDON LES BAINS, Switzerland and DALLAS, Nov. 1, 2016 /PRNewswire/ -- Leclanché SA (SIX: LECN), the leading global and vertically integrated battery energy storage solution company, has been selected by Swiss Green Electricity Management Group (SGEM) to serve as the engineering, procurement and construction (EPC) contractor and battery energy storage system supplier for the Marengo project in the PJM Market. This latest project, the company's first in the United States following a project win in Canada earlier this year, strengthens the company's presence in North America. In August 2016, Leclanché signed a preferred partnership agreement with Swiss Green Electricity Management Group (SGEM), an independent owner & operator of energy storage assets. This partnership agreement for investments into utility-scale energy storage projects begins with the Marengo Energy Storage Plant in the U.S. The Marengo 20 MW / 10 MWh grid-scale energy storage project is among the largest, fully commercial battery storage projects in North America. The Chicago-area project is being developed for the PJM Interconnection, the regional market transmission operator. It was developed by GlidePath Power, a leading developer of advanced energy solutions, which recently sold three similar projects in the United States. The Marengo Energy Storage Plant will be interconnected to the local Commonwealth Edison Company (ComEd) electric grid and will provide real-time frequency regulation service to PJM. The storage facility will respond almost instantly to the continually changing needs of the grid, providing real-time frequency regulation and allowing PJM to deliver higher quality reliable electrical service at a lower cost to its end-users in 13 states and the District of Columbia. The increasing share of renewable energy in the electricity mix poses substantial challenges to grid stability. As a direct result, demand for frequency regulation is growing considerably. The smart deployment of battery energy storage systems (BESS) is the lowest-cost solution to support grid operators in their efforts to reduce and defer their investments into transmission and distribution infrastructure upgrades.