Case Studies

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March 01, 2024

Department for Business, Energy and Industrial Strategy

With Powerstar's voltage optimisation, they saved £4,357/yr, reduced 29 tonnes CO2 annually, and achieved a minimum 6.2% energy savings across all units.

February 14, 2024

Parkinson-Spencer Refractories

Parkinson Spencer Refractories achieved protection from Power Disruptions, a 5% reduction in Energy Costs and extra revenue through GridBeyond with a BESS

January 14, 2024

Cutting and Wear

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

December 14, 2023


All defense sites have critical power requirements and most will ensure that they are able to run independently from the grid by having their own power generation

November 14, 2023

Stoba Prazisionstechnik UK Ltd

Stoba is a mass manufacturer and supplier of metallic parts and high quality components to the automotive industry that operates internationally.

October 14, 2023


AESSEAL needed help protecting their operations from power disruptions while driving forward net zero strategies.

September 14, 2023

Racing Engine Manufacturer

This racing engine manufacturer was struggling with grid constraints blocking the installation of vital new equipment.

August 14, 2023

Telecommunications Company

The client is one of the largest telecommunication companies in the UK and is based in London.

July 14, 2023

The Co-operative

Voltage Optimisation technology delivered thousands of pounds of energy savings in Co-operative food stores.

June 14, 2023

Wernick Group

Eliminating energy waste to achieve their net zero ambition. Wernick achieved savings of 9.2% in Energy Costs & 19 tonnes CO2 per annum

May 14, 2023

Rotherham General Hospital

Powerstar were engaged to replace a large hospital’s existing Uninterruptible Power Supply (UPS) system with a more efficient, intelligent Battery Energy Storage (BESS) alternative.

April 14, 2023

Wienerberger Ltd

Powerstar was commissioned to replace the site’s ageing transformer with modern, low-loss replacements, that incorporated voltage optimisation technology to provide more stable voltages across the site.

March 14, 2023

MI Dickson

Consumption of this site has decreased by over 8,000 kWh after the Voltage Optimisation installation, despite production volume being increased by almost 10%

February 14, 2023

Quorn Foods

A combination of voltage regulation and low-loss transformers saved this leading food manufacturer over £71,000 on their annual energy bills.

January 14, 2023


This manufacturer achieved a payback time of under 3 years and lowered it's transformer losses by 44% saving 135,000 kWh annually

December 14, 2022

University of Bristol

Powerstar Voltage optimisation saved 5.2% of the energy usage of this top 50 University

November 14, 2022

2 Sisters Food Group

This food manufacturer used voltage regulation to unlock more than £61,000 of savings on their annual energy bills.

October 14, 2022

Newport City Council

Newport City Council used low-loss transformers and voltage regulation to improve their sustainability performance, reducing their annual consumption by over 165,000 kWh

September 14, 2022

Aerospace Manufacturer

A global leader in the manufacture of landing gear, suspension and tram coupling bearings was suffering significant scrappage caused by power disruptions.

August 14, 2022

Four Seasons Shopping Centre

Voltage optimisation provided a 7.5% reduction in energy consumption for this shopping centre.

July 14, 2022

South Staffordshire Council

South Staffordshire Council were looking to install a battery energy storage system that provided them with site-wide UPS resilience

June 14, 2022

The Design Museum

The Design Museum is reducing energy consumption and generating revenue using a BESS to access grid balancing schemes.

June 14, 2022


Voltage optimisation delivered annual savings of more than £25,600 for this UK manufacturer.

May 14, 2022

Swann Morton

Voltage regulation helped to remove over 100 tonnes of carbon emissions annually from this manufacturer's carbon footprint.

April 14, 2022

TetraPak CPS Ltd

Voltage regulation technology helped to deliver a 10% reduction in energy whilst bolstering resilience for this leading manufacturer.

March 14, 2022

London City Hall

A flagship building for the Greater London Authority's net zero efforts, voltage regulation helped to significantly boost energy efficiency.

March 14, 2022

West Middlesex University Hospital

Voltage optimisation saved 8.4% annually on a modern facility with a Building Management System, VSD’s and other energy devices installed

February 14, 2022

Paragon Quality Foods Ltd

Margins in food manufacturing are tight, making a 12.3% reduction in electricity consumption vital for this UK producer.

January 14, 2022

Palais Hotel

Hotels often have levels of power consumption, meaning voltage optimisation was able to unlock a reduction of more than 10%.

May 14, 2021

PFF Group

Powerstar identified PFF Group’s aging transformers as a a potential power resilience risk, as well as an area where their energy efficiency could be significantly bolstered.

April 14, 2021

Supermarkets & Mini-markets

Energy costs make up a significant amount of the overheads of supermarkets & in total, around 3% of the UK’s total energy demand comes from them so being energy efficient is vital.

April 14, 2021

Holiday Accommodation Cottages

The client are owners of rural cottages which provide holiday accommodation in the Norfolk countryside.

March 14, 2021

The ICE Co

The Ice Co's need to keep ice frozen during the supply chain means they are faced with very high energy demand.

February 14, 2021

University of Surrey

Surrey University saved 189,474kWh per year, meeting their initial objectives in terms of suitability, effectiveness and return on investment period.

January 14, 2021

Precision Products

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

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