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e-fficient Energy Systems Ltd

BG House
Campbell Way
South Yorkshire
S25 3QD

Tel: 01909 569 016

Welcome to e-fficient Energy Systems Ltd

e-fficient Energy is the technical leader in Voltage Optimisation plus Regulation supplying Voltage Management and Energy Solutions nationally and internationally.

Our strength is our staff of engineers who’s core focus is to find the right solution for our client’s needs.

Why e-fficient Energy?
We have a global focus on helping organisations reduce their energy consumption and CO2 emissions. Our worldwide presence is achieved through direct projects with end user or through our Value Added Reseller and OEM partnerships.

What’s different about e-fficient Energy?
Key to our proposition though is not just energy savings but product reliability, customer service and customer building operation.

What are the details?
e-fficient Energy is the fastest growing company in the UK’s Voltage Management sector demonstrating the success of their technical lead with their eVO+R™ Voltage Optimisation plus Regulation systems, and their commitment to following the Site Survey methodology recommended by the Carbon Trust.

Established in 2010 e-fficient Energy Systems have a rapidly expanding range of UK Engineered products designed for the commercial markets helping businesses measure, monitor, manage and reduce their electricity usage.



A Variable Speed Drive (VSD) also known as an Adjustable Frequency Drive, Variable Frequency Drive, or an Inverter, adjusts a motor's speed to closely match output requirements, rather than just running at full speed all the time.


Voltage Management, Voltage Optimisation, Voltage Power Optimisation, Voltage Optimisation plus Regulation and Stabilisation, are all terms which describe the various technologies that reduce your incoming mains voltage to lower levels resulting in lower electricity bills, a reduced carbon footprint and saving you lots of money.



Monitoring & Targeting (M&T) technology is an effective energy management technique to unlock savings in electricity and other energy costs. M&T meters, accurately measure, monitor and enable you to manage your energy usage.

Voltage Optimisation
Monitoring & Targeting

Variable Speed Drives


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