About Us

CLS Chartered Energy and Fleet

Established in March 2014, CLS Energy has worked with a broad range of organisations to reduce their energy and fuel use, decrease their costs, reduce greenhouse gas (CO2e) emissions and address their triple bottom line.

Across all our customers, we have saved on average 17.4% of their total energy and fuel bills. That equates to an average 3.5% increment to their annual profits. Our clients include Nivea, Hallmark, Qatar Airlines and Regatta.

CLS Energy are a chartered and specialist energy and fleet transport consultancy service, with both commercial and public sector clients.

Working as a team of experienced energy and fleet associates, all of our team are specialists in key areas. All of our assessors are Certified and/or Chartered Energy and Fleet Managers. Each have worked in their sector for over 10 years.



Alan Asbury

 Company Director, Alan Asbury (FEI) is a Chartered   Energy Manager, Chartered Fleet Manager (CMILT),   Chartered Environmentalist (CEnv), and Chartered   Wastes Manager (MCIWM), with an MSc in   Environmental Management from the University of   Nottingham.

He was trained by the Energy Institute to its highest  level; European (now Advanced) Energy  Manager (EurEM) AEM in 2010, and has been a full  member of the Institute (MEI) until Sep 2018 when he  was elected to Fellowship (FEI).

Alan achieved Certified Measurement and Verification Professional – CMVP® (IPMVP) status in 2014, (renewing in 2017) with the UK Association of Energy Engineers (UKAEE). This allows for guaranteed savings to be demonstrated as required using IPMVP global industry standard software.

An ESOS Lead Assessor with the Energy Institute, he is qualified to provide and oversee mandatory four-yearly energy and fleet assessments for large companies across four EU member states.

Alan has more than 12 years of experience in assessing buildings for energy reduction measures, controls and solutions. He is also a chartered and specialist fleet assessor and delivers significant savings across light commercial and grey fleet, through HGV and marine to aircraft fleets.

Alan conducts energy assessments, audits and presentations to commercial companies, and lectures at the University of Greenwich to MSc students. As a qualified trainer, he conducts bespoke company training courses for CLS Energy.

He was awarded National Sustainability Manager of the Year in Dec 2012, and won the Energy Savings Trust’s Fleet Hero (Silver) Award in Nov 2015. He has fund writing successes amounting to over £2,000,000.

Associate of the Institute of Environmental Management and Assessment (AIEMA) since 2000, Alan was recently made a practitioner (PIEMA), and is a member of the Freight Transport Association (FTA) and Institute of Car Fleet Managers (ICFM).


Conor Molloy

Conor Molloy, an Associate Consultant and energy advisor, has an MSc in Energy Management and Renewable Energy from the University of Ulster.

​He is a Certified Energy Manager (CEM) and Certified  Measurement & Verification Professional – CMVP® (IPMVP), with the Association of Energy Engineers (AEE), as well as a trainer for ISO 50001 Energy Management System (EnMS).

In recent times, he has trained over 100 ESOS Lead Assessors in Transport Energy Auditing, led on the publication of EN 16247-4; Europe’s transport energy audit standard and contributed to ISO 50004.

Since 2005, Conor has been helping businesses to save fuel and manage their energy usage for profit and reduced emissions.

​Conor is a full member of the Association of Energy Engineers (AEE), Chartered Institute of Logistics and Transport (CILT), Freight Transport Association, Ireland (FTAI), Institute of Management Consultants and Advisors (IMCA) and the Efficiency Valuation Organisation (EVO).  Conor is a registered ESOS Lead Assessor in the UK and a registered Energy Auditor – Environmental Assessment Scheme (EAS) in Southern Ireland, (Eire). In 2014, he was elected Chair of the EU Transport Energy Management Working Group.

Conor has helped some of the biggest names in freight transport to achieve significant fuel and cost savings.


James Hoare

James Hoare, MEI, Chartered Energy Engineer; CEng (with the Energy Institute), is an Associate Consultant with CLS Energy.

James is an experienced and qualified professional engineer with 30 years Engineering, Innovation/Product Development, Commercial, Marketing, Sales / Business Development and Managerial experience in the Energy industry, with business start-ups through to large Utility/Manufacturing/Consulting and Construction Organisations. He was trained by the Energy Institute to its highest level Advanced Energy  Manager (AEM).

He is an ESOS Lead Assessor and a respected specialist in Renewable Energy generation technologies, and has a wealth of experience in Solar Photovoltaic (PV), Solar Thermal, large and small scale Wind Turbine technologies, as well as Hydro, Energy from Waste (EfW), Biomass (Heat and Electricity) and Heat Pump installations and in “off grid” Energy Storage Systems.

He is a specialist in systems verification and validation testing, thermographic investigation, fault investigation and grid connection for distributed generation.

​Other experience includes conventional power generation, transmission and distribution, network automation, SCADA/EMS/Telecoms and Traction Power Supplies (AC and DC), Substation / Overhead Line / Underground Cabling design/construction LV11/25/66/132/275/400 kV.

James is a Civil Aviation Authority (CAA) compliant and qualified drone pilot. He has demonstrated capability to the CAA of operating safely in UK Airspace and holds Permission for Commercial Operations (PfCO) with 20 metre exemptions.


Richard Elton

Richard Elton is an Associate Consultant of CLS Energy Ltd. He is also a qualified and practising Energy Assessor and Green Deal Advisor, trained to deliver Minimum Energy Efficiency Standards (MEES).

With over 10 years of energy assessment experience, he has personally trained well over 1,000 individuals in various aspects of building assessment and software reporting.

Richard is qualified to conduct Non-Domestic (Commercial) and Domestic (Residential) EPCs to levels 3 and 4, SBEM Calculations, Air Conditioning Assessments to level 4, and Display Energy Certificates (DECs) as well as Domestic On Construction Energy Assessments to level 3.

Richard has a level 4 Award in the Internal Quality Assurance of Assessment, Processes and Practices. A pragmatic and valued member of the team. He has a comprehensive knowledge of current Building Regulations. Richard is certified to DEA, NDEA, DEC, ACEA, DGDA, NDGDA, DOCEA.