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Display Energy Certificates (DECs) are mandatory for the public sector where a building is greater than 250m2 and is accessible to the public.

DECs were introduced by the Department for Communities and Local Government in 2008. They form part of the implementation of the European Directives 2002/91/EC and 2010/31/EU on the energy performance of buildings.

2EA is an energy management consultancy with over 25 years of experience, specialising in energy legislation.

Our expertise not only includes Display Energy Certificates (DECs) but we have vast knowledge and experience in Climate Change Levy Taxation, CHP & CHPQA Management, ESOS, SECR and MCPD.

We serve clients across various sectors, including supermarkets, retail, hotels, leisure centres, hospitals, schools, and research centres. As Chartered Institution of Building Services Engineers (CIBSE) registered Low Carbon Consultants, Low Carbon Energy Assessors, ESOS Lead Assessors, and EnMS specialists, we offer comprehensive advice and guidance.

    Take a look at some of our latest news…

    Climate Change Levy (CCL) Non‑fuel Use Exemption - 27th March 2026
    Medium Combustion Plant Directive (MCPD) - 25th March 2026
    Electric Cars - How Have They Impacted the Environment?
    ESOS Phase 4 Timeline - 16th March 2026
    Medium Combustion Plant Directive (MCPD) Update
    Energy Savings Opportunity Scheme (ESOS) - 4th March 2026

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