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GE technology helps Scottish utility to integrate renewable energy

GE’s Digital Energy Business has announced that it will provide series compensation capabilities to three of SP Power System Ltd’s facilities in southern Scotland
GE technology helps Scottish utility to integrate renewable energy

SP Power System Ltd is a subsidiary of Scottish Power and the technology will be brought in to help meet and mitigate highly complex grid challenges in order to integrate renewable energy generation into the Scottish energy mix. GE’s compensation technology is being showcased this week at the 2014 IEEE PES Transmission & Distribution Conference & Exposition in Chicago.

The utility will be installing series capacitor banks with sub-synchronous resonance (SSR) filters to its substations, increasing the reliability, efficiency and power transfer capabilities of Scottish Power's 400-kilovolt transmission network. This will allow power to flow seamlessly from northern Scotland into England. The solution is also being deployed elsewhere by GE in order to help the European Union (EU) achieve its target of more than 15 percent renewable generation.

Balfour Beatty Engineering Services will be working with GE to provide the technology to Scottish Power's Moffat (400-kilovolt, 560-MVAr), Gretna (400-kilovolt, 560-MVAr) and Eccles 1 and 2 (400-kilovolt, 442-MVAr each) substations. This in turn will provide a cost-effective method to increase power transfer across Scottish Power’s long transmission lines. Working with BBES enabled GE to fulfill and meet local requirements and standards for Scottish Power's facilities. It also establishes a localized presence in the region that can provide long-term support and maintenance to each of the series capacitor banks as needed.

“Our priority is to provide a safe, reliable and efficient transmission network to benefit all of our customers” said Mike Young, series compensation program manager, Scottish Power. “We believe that GE offers the best technical solution and meets the stringent safety and environmental requirements of our project. We look forward to working closely with the GE team to deliver this project.”

The four series compensation banks installed by GE will utilize its reliable fuseless capacitor design and will include metal-oxide varistors and triggered air gaps. The scope of the project also includes detailed studies and analysis from provided by GE’s energy consulting business for the design and application of the SSR filters. The project is scheduled to be completed in 2015.

GE has been a supplier of SSR mitigation solutions and filters since the 1970s beginning with the Navajo station 40 years ago to the company's most recent project with Newmont Mining.

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