Germany, June 16 -- RWE's first inertia-ready battery energy storage system (BESS) has started commercial operation on the site of the company's power plant in Moerdijk, the Netherlands. It is the first of its kind in operation in the Central European grid.The BESS has an installed capacity of 7.5-megawatts (MW) and a storage capacity of 11 megawatt hours (MWh). Highly responsive control technology and inverters with grid-forming functionality enable the system to supply or absorb power within milliseconds, helping to stabilise the power grid. This service is called inertia.The more electricity comes from renewable, fluctuating energy sources, the more difficult it becomes to keep the power grid stable. Inertia plays a crucial role here as ...