New standards for energy smart appliances will lay the foundations for a flexible low carbon energy system.

19 May 2021


BEAMA is therefore very pleased to announce and support the publication of two new standards, PAS 1878:2021 Energy smart appliances –Functionality and system architecture – Specification and PAS 1879:2021 Energy Smart Appliances – Demand side response operation – code of practice. These standards set the basis for how full integration and interoperability of energy smart appliances can support a market for flexible energy services. They complement and develop further the European standards that BEAMA and our members have contributed to in recent years. The compatibility with international standards in development places the UK at the forefront of this work and will enable an internationally competitive market for energy smart appliances in the UK.

BEAMA will continue to work with our members to inform further development of UK and international regulation, working closely with UK Government on the appropriate implementation of supporting policy and regulation.

PAS 1878 sets out requirements for an appliance to be classified as an Energy Smart Appliance (ESA) and outlines the functional requirements and system architecture of an ESA to enable Demand Side Response. BEIS may look at the possibility for future certification requirements, and BEAMA will continue to work closely with UK Government and our membership to ensure appropriate market wide application and suitability. Currently this PAS is voluntary, and we encourage our membership to take it into consideration as the basis for the design and architecture of manufactured ESAs.

Dr Howard Porter, BEAMA CEO and chairman of the Strategic Advisory Group overseeing the development of these standards, states ‘these specifications will play a significant role in the future of flexibility markets in the UK energy system. The specifications, developed over the last two years, have taken on board expert views from across industry, consumer groups, Government and BSI and now form the basis for considering interoperable solutions for consumers and businesses.

‘BEAMA members across the wide scope of energy smart appliances we cover will find these specifications useful, in particular as the UK Government are planning regulations that will adopt all or part of these PASs.

‘Understanding these PASs is vital for the integration of heat pumps and electric vehicle charge points in buildings and energy networks and to realise the value of smart metering infrastructure.’

George Penny, Technology Strategy Manager at Moixa and BEAMA member

"PAS 1878 and 1879 represent an important step in standardisation of the innovative work Moixa and others at the forefront of the energy transition have been undertaking. Standardisation is necessary to move domestic grid participation beyond early adopters and trials, to the commonplace everyday involvement necessary for a renewable future. The scale of the challenge remains huge, but failure to address it would be catastrophic. These specifications will allow interoperability between appliances and those who can provide value from scheduling them, which will accelerate innovation and progress towards net zero."

Patrick Caiger-Smith, Chairman of GEO and BEAMA member

“The emerging markets for flexibility services are complex from both a commercial and technical perspectives even to industry insiders. They will be baffling to almost all consumers. The framework provided by these standards should enable service operators and device manufacturers to develop systems that work consistently in the background of homes without manual intervention and at the same time protecting data and providing security. Whilst not assuring interoperability, the detailed thinking that has gone into these standards will provide commonality of approach to companies that adopt these standards.”


Notes to Editors:

About BEAMA 



BEAMA is the UK trade association for manufacturers and providers of energy infrastructure technologies and systems. We represent more than 200 companies, from start-ups and SMEs to large multinationals. Our members' products ensure low carbon energy and environmental services are delivered safely, securely and efficiently to UK homes, businesses, transport and grid networks.  We support our members in ensuring that the UK has a strong electrotechnical industry that is recognised as an essential part of modern society and brings invaluable economic, social and environmental benefits. 


BEAMA CEO Howard Porter chaired the Strategic Advisory Group for the development of PAS1878 and 1879.  BEAMA provided industry representation and technical input on both BSI steering groups and continue to work with BEIS and BSI on the development of associated policy and standards in this area.  Within BEAMAs scope we represent many key Energy Smart Appliances that fall into scope of this PAS work, including building energy storage, Electrical Vehicle charging infrastructure, low carbon heating and ventilation systems, IoT devices and controls, and smart metering infrastructure.


Energy Smart Appliances programme

The ESA programme is sponsored by the Department for Business, Energy and Industrial Strategy (BEIS) and the Office for Zero Emission Vehicles (OZEV) to facilitate the uptake of safe, secure and interoperable ESAs, including electric vehicle (EV) chargepoints. ESAs can be used for the active management of demand on the electricity network, known as Demand Side Response (DSR) services. To learn more, please visit:

For further information contact Charlie May at [email protected] or 0207 793 3000

Issued on behalf of BEAMA,

Rotherwick House, 3 Thomas More Street, 

St Katharine's and Wapping, London, E1W 1YZ

Tel: 020 7793 3000

Fax: 020 7793 3003