EDF picks S&C to equip UK Grid compliance at Fallago Rig wind farm

London, April 30, 2012 — S&C Electric Europe Ltd has won the multi-million pound contract to supply reactive compensation to EDF Energy Renewables' Fallago Rig wind farm, one of the U.K.'s largest onshore wind farms.

The site in the Scottish borders will consist of 48 wind turbines providing 144 MW of renewable electricity, which can power around 90,000 homes and will form a major step forward in meeting the government's renewable energy targets.

S&C will provide all required network studies to guarantee the system meets the National Grid's Grid Code requirements. Unless new renewable energy sources comply with the Grid Code, energy plants cannot be linked to the grid and therefore cannot deliver or sell the energy generated.

The S&C system will be designed to meet the U.K.'s strict compliance testing requirements — a prerequisite for wind farms to comply with the rigorous Grid Code interconnection standards. These standards enable effective operation of renewable energy plants with the grid and include complex interconnection specifications, which call for continuous voltage regulation or reactive power control with rapid response.

To guarantee Grid Code compliance, S&C will deliver a 60MVAR PureWave DSTATCOM Distributed Static Compensator to reduce voltage variations such as sags, surges, and flicker, which can result from intermittent electricity generation, along with instability caused by rapidly varying reactive power demands. S&C's PureWave DSTATCOM is a proven solution that is used globally to connect renewable energy plants to grids.

The DSTATCOM will use the integral SCADA control room within the container, minimizing the need for valuable substation space. S&C's dedicated Network Study team based in Manchester will provide the required extended studies to take responsibility for and enable Grid Code compliance. Once completed in November 2012, this installed solution will benefit from a five-year warranty supplied by local S&C site personnel.

Utilities are faced with ever more stringent reactive requirements for delivering wholesale power to meet the UK's energy demand. This is exacerbated by the increasing number of wind farms being added to the system, which tend to behave differently than conventional plant. Reactive compensation is often necessary to meet these stringent requirements and comply with the Grid Code.

The National Grid implemented the Grid Code to permit the development, maintenance and operation of an efficient, coordinated and economical system for the transmission of electricity, to promote the security and efficiency of the power system as a whole. Unlike mainland Europe, any utilities investing in bringing distributed sources on stream onto the UK grid transmission system are required to comply with the Grid Code.

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