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Power resilience for a net zero world

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Case Studies

W Brewin Ltd






W. Brewin & Co Ltd is a long-standing family-run business established in 1931, supplying the high street with babies, children’s, ladies’ and men’s socks and tights, building a reputation for quality, value for money and excellent service. They continue to operate a UK manufacturing plant alongside their offshore supply chain.


W Brewin were looking to cut their energy costs and reduce their impact on the environment without impacting on their business operations, value for money or customer experience.


The Powerstar team were commissioned to provide an energy site survey on the manufacturing plant to determine the most effective engineering solution for the site which would provide the maximum savings and return on investment possible. It was identified that two 200kVA Powerstar Voltage Optimisation units should be installed. The systems work to reduce the incoming voltage at the site and clean the incoming power supply to achieve significant reductions in consumption and improvements in power quality.


With an average voltage reduction of 14% W Brewin have achieved savings of £47,000 since installation. This resulted in a return on investment in only 2 years


Average voltage reduction


Savings achieved

Customer Testimonial

͞”The operational aspect of the units has been 100% reliable – We have been very pleased with both the units and service provided by Powerstar”

Paul Spence, Finance Director, W Brewin

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You might also be interested in


Voltage Optimisation

Optimising the incoming voltage to your site to improve quality, saving energy and costs.


Net Zero

Reduce your CO2 emissions to work towards Net Zero carbon.


Reducing Energy Bills

Use power more intelligently and effectively to reduce your business/organisation's energy bills and electricity costs.



The dawn of Industry 4.0, automation and robotics has made manufacturing sites more dependent than ever on a high quality, consistent, and reliable power supply.

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This Installation gave an annual reduction on energy consumption of 9.5%, and carbon reductions of 58.7 tonnes per annum. An Annual saving of 107,659 kWh

Precision Products Ltd

This precision manufacturer removed more than 85 tonnes from their annual net emissions with the help of voltage regulation


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