Please see a small selection of our powerPerfector case studies below. If you want to view another sector, please click the related pages on the left of the page.

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Testimonial booklet

VPO Testimonial document

Client testimonial booklet (Download PDF - 4.9MB)

Case study booklets

VPO case studies

Case Studies - a quick glance (Download PDF - 3.8MB) 

Case Studies - education (Download PDF - 3.2MB)

Central College Nottingham

Educating the Educated

Why it is interesting: Many view the implementation of voltage optimisation as a slow and technical process. powerPerfector prides itself on its efficient and effective evaluation process and clear communication, with a qualified project management team and expert engineers to provide continuing support and ensure smooth implementation and successful project delivery. Central College Nottingham is an example of how simple and effective a powerPerfector installation can be.


The University of Greenwich

Savings observed at Greenwich

Why it is interesting: How powerPerfector balanced the need to make energy savings with the need to protect the historical and cultural significance of the University estate.


The University of Plymouth

Adding certainty to energy savings at the University of Plymouth

Why it is interesting: Universities are centres of excellence for learning and research. The scientific rigour with which studies are carried out is what makes the institutions highly regarded. The University of Plymouth worked with powerPerfector to install, not only, Voltage Optimisation but sub metering too, in order to assess the project’s performance.


The University of Winchester

Out of hours installation

Why it is interesting: Established in 1840, The University of Winchester is home to just under 6,000 students studying a broad range of programmes at both undergraduate and postgraduate level. The West Downs Centre and Student Village are located just a few hundred metres away from the King Alfred Campus. A Grade II listed building, the West Downs Centre was renovated by the University in 2001, accommodation includes 14 syndicate and plenary rooms, 65 en‐suite bedrooms, dining and bar facilities as well as a reception space.

Annual Savings: kWh: 9-9.6% | CO2: 49,400kg | £9,220

Savings Reports

• Flegg High School

(Download - 515KB)

• Greenshaw High School

(Download - 455KB)

• Prestatyn High School

(Download - 3.4MB)

• London School of Economics

(Download - 430KB)

• Oxford Colleges

(Download - 1.4MB)

• Queen Mary University Library

(Download - 445KB)

• Swansea Metropolitan University

(Download - 2.5MB)


*The greengauge represents the aggregate savings of powerPerfector installations in the UK, Ireland, Cyprus and Denmark. Savings correct at the time of installation using either IPMVP savings analysis or reasonable estimates, where savings analysis was not possible. Actual savings may change over time for example due to energy pricing, occupancy, equipment, rates, building re-purposing and further energy efficiency measures.

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