We are pleased to report that there have been no breaches of any of our Environmental Permit or licence conditions during the past year. Routine visits from the area Environment Agency inspector have suggested that the site is compliant with its environmental responsibilities.

Gas and electricity markets in 2011 allowed Deeside to operate regularly during the year, although in ‘two-shift’ operation. This is the term given to plant operation requiring start up and shut down within the same day. The plant still emits significantly less greenhouse gas and acid forming gas emissions than conventional coal-fired power plants due to low sulphur content of the fuel gas and relatively low NOx emissions, and even during two-shift operation manages a thermal efficiency of around 50%.

The emissions from the gas turbine stacks are continuously monitored as required by the site Environmental Permit that is policed by the Environment Agency. In 2011 we remained compliant with BS EN 14181 as required by the Large Combustion Plant Directive. The site has never exceeded its authorised limits to air since commencing commercial generation in 1994. Certification of water discharge flow monitoring enabled the site to show compliance with the requirements of MCERTS for water flow.

Deeside has maintained the standard required under ISO 14001 through assessment by Lloyds Register Quality Assurance, and was re-certificated for a further three years in 2011.

We continue to support the Tidal Dee Users Group monitoring the commercial and environmental issues associated with the area to attempt to encourage sustainable development of the estuary.

We also continue to offer an educational facility for local schools, which includes a demonstration of the environmental benefits of a CCGT power station compared to conventional plant and offer schools a visit to our Energy Garden which provides children with an insight into alternative and renewable forms of energy.

Further details of our environmental policy and improvement programme can be obtained from the site Environment, Health & Safety Officer.

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