Backing Welsh Power’s STOR portfolio


Power’s technical and strategic requirement. Edina provided feasibility studies, financial


W


and energy modelling to maximise the projects objectives and energy performance. Under the full EPC contract, Edina supplied,


installed and maintains the MWM TCG 2020 V20 engines, all of which were containerised at its manufacturing facility in Lisburn, Northern Ireland. Edina also undertook the design of the building work housing the containerised generators, Project Management and Commissioning. In managing these projects, a number of challenges were addressed. Prior to work commencing onsite any conditions imposed under the planning consent were discharged. Typical conditions included, the submission


and approval by the Planning Authority of drainage design, external lighting design, noise levels and ground stabilisation & foundation design. Working with planning consultant Nathaniel Litchfield and Partners, Edina itself provided information and assis- tance to expedite the process. Conditions ‘in the ground’ posed the greatest challenges. It is not unusual to encounter underground services, either not in


elsh Power awarded Edina a full EPC contract due to Edina’s complete understanding, and capability in delivering Welsh


the location shown on record drawings, or not on the drawings at all - contaminated ground, unrecorded mass concrete foundations etc. To mitigate the impact of such factors on project delivery timescales, Edina undertook trial excavations and investigations to establish ground conditions and to adapt suitable methods and a programme of works accordingly. The achievements in the STOR and Peak


Power projects included the ability of the control system to use the entire site not just for STOR and Peak Power applications, but for other applications too. The sites control system was cleverly designed to make sure that demands from various organisations like National Grid and Centrica could demand power generation and the system decides who has the priority to demand power. This ensures the equipment is effectively utilised and the investment gives better returns. The gensets are also provided with heaters


to improve start up times at short notice. The electricity consumed from the grid usually emits an average of 0.541kg CO2 per kWh, but the genset supplied for the Welsh Power projects emit 0.3059 kg CO2 per kWh, reducing the average carbon emissions of power consumed from the National Grid. These power stations provide security and stability to the grid and can be demanded


CHP


MWM’s TCG 2020 V20 engine.


The STOR and Peak Power portfolio across Welsh Power helps the National Grid keep supply and demand in balance and provides UK infrastructure mission critical power in areas of the UK that are prone to risk of loss of power supply and with a high population density. The company has been assisted by the Edina Group which has delivered a full EPC contract to Welsh Power’s STOR portfolio across 14 sites based in the UK, reports UKPN.


“Under the full EPC contract, Edina


suppl ied,


installed and maintains the MWM TCG 2020 V20


engines, all of which were containerised at its own facil ity in Lisburn, Northern Ireland.”


10MWe power plant at Dafen Reserve Power Ltd, Llanelli.


during peak hours or during high electrical demand. These power stations have a quick ramp up time to meet the demand of the grid within 7 minutes. A boiler based engine block heating system


was developed to minimise the parasitic load of the station when on standby, helping the gensets to ramp up to 100% load within the specified time. A large number of the Welsh Power STOR


projects were designed and built in keeping with the aesthetic of the surrounding area. Facilities housing the engines were painted green and trees have been planted around the buildings parameter to minimise the environmental impact of the power plants. The STOR and Peak Power portfolio across


Welsh Power helps the National Grid keep supply and demand in balance and provides UK infrastructure mission critical power in areas of the UK that are prone to risk of loss of power supply and with a high population density. More than 10% of the UK’s electricity is


generated by carbon intensive peaking plants, which is used to match supply and demand when required. By using natural gas genera- tors, Welsh Power’s STOR and Peak Power management effectively reduces the need for peaking plants and helps support the growth of renewable energy (solar/wind) generation, offering essential balancing at times when weather conditions prevent output. The overall carbon emissions of the National Grid system will reduce as more renewable generation and balancing services are connected to it. This will benefit all companies that report


their carbon emissions, since Defra’s (Department for Environment, Food & Rural Affairs) grid-supplied electricity conversion factor takes this into account. The STOR power plants will safeguard security of power supply caused by the imbal- ance of renewable energy exported into the electricity grid. Supplying directly to the electricity grid for domestic, public and/or commercial usage, the STOR power plants maintain a depend- able energy service to allow the consumer to access energy wherever, whenever. www.edina.eu


SEPTEMBER‐OCTOBER 2017 UK POWER NEWS 23


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