RWE Npower is to build the first carbon-capturing plant at a coal-fired power station in the UK. The company will build the plant at Aberthaw power station in Wales, and plans to begin operations in 2010. Npower said it would build a small 1MW plant initially, for about USD 17 million, with further investment planned for a capture and storage demonstrator plant of at least 25MW. Both plants will be designed using post-combustion technology, so it can be applied to existing coal power plants. The larger capture and storage demonstrator plant would form part of one of Npower’s new, high-efficiency, super-critical power stations.