Only by truly understanding your operation can an energy manager provide accurate and actionable savings. We will establish your significant energy users (SEUs), assess and log your operation and calculate savings made available through the introduction of measures, technical installs, building fabric improvements, controls and behaviours. Once we’ve addressed your operation, we will also assess opportunities for renewable and low carbon energy and fleet alongside energy storage and on-site capacity.

By assessing your data and bench-marking against both yourselves and good practice, we are able to establish indicative savings potential. We can then assess and profile your site, equipment, operation and controls, and make calculations to establish actual energy, fuel, carbon and cost savings available. We will then make bespoke and specific recommendations to your organisation setting out internationally (IPMVP) recognised, guaranteed minimum savings.


A recent ESOS testimonial

20th October 2021
“John Pye Auctions is the largest On-line auction company in the UK with 7 sites spread across England, Scotland, Wales, and Northern Ireland.  We recently embarked on ESOS compliance and selected Comply Direct and CLS Energy as our preferred partners ... Read More

Cruise Company Testimonial

3rd September 2021
Having recently delivered Viking Cruises to delayed ESOS compliance, this is what their director kindly said about our services: “CLS Energy carried out our ESOS assessment efficiently and without disruption. They recommended some simple energy savings which we could ... Read More

Thomas Armstrong – a Testimonial

8th April 2021
CLS Energy worked with Thomas Armstrong on their heavy manufacturing processes and HGV fleet haulage operations to deliver them significant financial savings and compliance to ESOS Phase 2 in 2019. This is what their director has been kind enough ... Read More

A testimonial from JMK Group… “…the best ESOS Lead Assessors out there”

1st February 2021
“I couldn’t have made a better choice than CLS Energy for our first ESOS notification. Being new to the process we had many questions and everything was explained clearly and with sufficient detail. No question was too silly or ... Read More

A live testimonial from Copeland Borough Council in Cumbria

30th January 2021
Appointed through the LGA’s Expert Programme, CLS Energy are working with Copeland Borough Council on their Energy, Fleet and Carbon (CO2e) emissions as well as opportunities for large scale renewable energy generation. So far, from their major sites, we ... Read More

Agricultural Fleet and Energy Assessment Testimonial “…The results were outstanding;”

19th January 2021
Having recently completed a delayed ESOS Phase 2 assessment for Clock House Farm, we were thrilled to receive this from them earlier today: “Clock House Farm recently undertook the ESOS Phase 2 process; Step 1 was the identification of ... Read More

Zero Carbon Testimonial from Gloucester City Council

17th December 2020
Following our work to deliver a baseline, energy and carbon savings for Gloucester City Council’s estate and fleet, in order to assist them with their 2030 zero carbon council and 2050 zero carbon city targets, we were able to ... Read More

SECR Testimonial “…astute observations and recommendations”…

17th December 2020
As an organisation, Bottomline transform business payments and processes for more than 600,000 companies and financial institutions across 92 countries around the world. Here is what they very kindly said of CLS Energy following our delivery of Streamlined Energy and ... Read More

A Testimonial from Freightroute “…well informed on energy management and future trends…”

3rd December 2020
“Working with Alan Asbury of CLS Energy Ltd we recently completed the ESOS 2 audit process as required by the Environment Agency. From the outset, Alan helped to make the process more enjoyable and therefore meaningful and informative for ... Read More