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Power resilience for a net zero world

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Case Studies

Chesterfelt Group






The Chesterfelt Group Ltd manufactures and distribute roofing membranes throughout the UK. The company operates from a self-contained manufacturing and warehousing facility in Chesterfield, Derbyshire.


Chesterfelt Group Ltd were suffering from power quality issues, failures in electrical equipment and high maintenance costs from continuous replacement of light fittings. In addition, the company were looking to address overall electricity consumption and carbon emissions for the manufacturing facility. Powerstar were invited to measure the average voltage levels on site and propose a solution to tackle the ongoing problems.


When measured, the average voltage for the facility was 241V, and it was identified that this excessive voltage was responsible for much of the power quality issues the company was facing. Powerstar recommended the installation of a 500kVA Voltage optimisation system, delivering a 5% reduction in voltage.


The result of the installation was an annual reduction on energy consumption of 9.9%, annual financial savings of £10,075 and carbon reductions of 55.7 tonnes per annum. Following the installation the ongoing power issues were drastically reduced and light failures minimised, therefore contributing to an overall reduction in maintenance costs for the manufacturing facility


annual reduction in energy consumption. An annual costs saving of


Customer Testimonial

“We saw voltage optimisation as a major step in our continual need for improvement on our environmental performance. We are very pleased with this energy reduction, which not only help our targets, but has a significant impact on our costs too.”

Colin Hodgson, Operations Director

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