Home Operations   Environment   Health&Safety   Contact Us  


Deeside Power
2016 Environmental Performance

There were no reportable incidents or breeches of the conditions of the Environmental Permit during 2016.

Deeside operated 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 coal-fired power plants due to low sulphur content of the fuel gas and relatively low NOx emissions.

At the end of March 2015, due to the demand in output from gas fired plants Deeside declared its capacity on to the National Grid down to 260 MW (half its previous capacity). This means that it can only run one of its two gas turbines for normal electricity market trading. However it has also secured a “Supplemental Balancing Reserve” (SBR) contract with National Grid to meet Winter Peak Demand in emergency conditions. When called upon under this contract both gas turbines need to run simultaneously. We successfully delivered this extra capacity during 2015 and 2016 winter periods.

The emissions from the gas turbine stacks are continuously monitored as required by the site Environmental Permit that is policed by Natural Resources Wales (NRW). In 2016 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.

From 1st January 2016 Deeside began operation in the UK’s Transitional National Plan (TNP) in accordance with the EU Industrial Emissions Directive. A new Environmental Permit has been issued by Natural Resources Wales (NRW) effective from that date and specifies new lower emissions limits which must be complied with. In order to comply with the requirements of the TNP Deeside also carried out Gas flow Emissions tests to verify the quantities of mass emissions reported.

Deeside has maintained the integrated standards required under ISO 14001 for Environmental Management, OHSAS 18001 for Health and Safety Management and ISO 9001 for Quality Management, and was successfully re-certificated for a further three years in 2016.

Amongst targets achieved during 2016 were:

Monitor & Report to new permit conditions & TNP Regulations

Obtain 3 yearly recertification to ISO 14001 standard

Carry out Gas Flow Tests to meet TNP Regulations

Provide Shift Staff refresher training on water discharge management

Provide additional staff awareness briefings and maintain 2015 rates of waste recycling

Self-Verification of systems for delivering TNP / IED Compliance.

Review relevant key procedures in line with condition of revised permit

The station management has approved Deeside's environmental policy for 2017. This largely reflects Deeside’s commitment to full compliance with the Environmental Permit requirements and continual improvement of our ISO 14001 certified Environment Management System.

Targets for 2017 include:

Minimise energy consumption during “Summer Cold” period

Verification of systems for delivering TNP / IED Compliance - Negotiate conditions for NOx Trading with NRW. Carry out gas flow tests if required

Provide Shift Staff refresher training on air discharge management.

Provide additional staff awareness briefings and maintain 2016 rates of waste recycling

Implement new corporate environmental reporting via PERFORM



Previous Page
Next Page


Deeside Power Station 01244 286000 ..... Email Deeside Power ....Link to Engie...