(ShareCast News) - Flexible power projects developer and operator Plutus PowerGen confirmed on Wednesday that it operated its Plymouth site in support of the national grid for the first time on 8 November.The AIM-traded firm said the current tight supply margin in the UK energy market had demonstrated the need for flexible generators such as PPG, which has developed projects that can generate power for short periods of time and at short notice, to meet market demand and fluctuations.Its board anticipated that the plant will continue to operate intermittently while the market continues to suffer tight supply margins this week."We are already generating revenues since commissioning the first site last week," said CEO Phil Stephens."With a cold winter ahead, it is anticipated that the UK energy dynamic will become increasingly strained and PPG is now, and will continue to be, well positioned to contribute to meeting any forthcoming demand with a consistent source of power."I look forward to providing updates on the rest of our portfolio and the impact this has on our business."