Energy Technology List home
Department for Business, Energy and Industrial Strategy

Browse our technology categories

Boiler equipment

A wide variety of boiler equipment is listed on the ETL including hot water boilers, biomass boilers and steam boiler equipment. 

Boiler retrofit equipment

A wide variety of boiler retrofit equipment is listed on the ETL including burners with controls, condensing economisers and non-condensing economisers.

Combined heat and power (CHP)

CHP is the simultaneous generation of heat and power. CHP schemes are bespoke by their nature.

Compressed air equipment

Compressed air equipment on the ETL includes master controllers, refrigerated air dryers, desiccant air dryers and flow controllers.

Energy monitoring

Equipment includes portable energy monitoring equipment and automatic monitoring & targeting sub-metering systems.

Energy storage

The energy storage category on the ETL includes battery and thermal energy storage for commercial and industrial applications.

Hand dryers

Two types of electric hands dryers are covered: high speed warm air dryers and high speed ambient air dryers. Conventional warm air dryers are not covered.

Heat pumps

Heat pumps eligible for ETL are air source heat pumps, water source heat pumps, ground source heat pumps and heat pump dehumidifiers.

Heat recovery ventilation units

This category features plate heat exchangers and rotating heat exchangers.

Heating, ventilation and air-conditioning (HVAC) equipment

Equipment such as HVAC building controls, active chilled beams, close control air conditioning and evaporative air coolers are listed.


This includes white LED lighting modules for backlit illuminated signs, efficient white lighting units and building lighting controls.

Motors, drives & fans

Motors and drives available on the ETL are line operated motors, variable speed drives and converter-fed motors.

Pipework, tank & vessel insulation

Pipework, tank & vessel insulation reduces the flow of heat in and out of pipes, tanks or vessels.

Professional foodservice equipment (PFSE)

This category includes combination steam ovens, convection ovens, undercounter dishwashers and hood-type dishwashers.

Radiant and warm air heaters

Warm air heating, designed to provide space heating, and radiant heating, designed to heat people or objects, are both listed on the ETL.

Refrigeration equipment

A variety of products in both industrial and commercial refrigeration categories are listed on the ETL.

Solar thermal collectors

Solar thermal collectors eligible for the ETL are glazed flat plate solar collector and evacuated tube solar collectors.

Uninterruptible power supply (UPS)

UPS products on the ETL include: static UPS, rotary UPS and hybrid rotary UPS.

Waste heat to electricity conversion equipment

Processes that use energy and produce heat as a byproduct can utilise this to convert into energy.

Wastewater heat recovery systems

This category covers technology designed to use residual heat from drained wastewater via an instantaneous heat exchange to pre-heat incoming mains water.