Some MCS products may not be eligible for financial incentives. Therefore it is important to check before purchasing a new microgeneration technology. OFGEM has also published a list of eligible products for the domestic Renewable Heat Incentive (domestic RHI product eligibility list available here). As a minimum products must hold MCS certification, however additional criteria have been applied to determine eligibility for the domestic RHI. It is important to ensure that the MCS certified product that you use is also listed on the domestic RHI Product Eligibility List if the installation is intended for application to the domestic RHI.
The CEN Solar Keymark certification scheme is recognised by the UK government as an equivalent certification scheme for solar thermal collectors. Please click here to be directed to the CEN Solar Keymark product database.
PLEASE NOTE: MCS Products that have been withdrawn from certification are available for reference here. Installers please check this sheet on a weekly basis against your inventory to ensure your MCS products are still certified. Please note the last date you can register a certificate using on of the products is listed on the spreadsheet in Column I.
Please click on "More Info" to learn about the technology type and to be able to search for a MCS Certified Product
An Air Source Heat Pump (ASHP) is a system which absorbs heat from the outside air and turns this into useful heat energy for space heating and domestic hot water. This can be in the form of air to air (providing heated air for space heating) or air to water (providing heated water for space heating and/or domestic hot water).
A Biomass product designed to burn biofuel in order to produce heat for space heating and/or domestic hot water. MCS covers Biomass products designed and tested to burn solid biofuels only.
An Exhaust Air Source Heat Pump (EAHP) is a system which absorbs heat from the waste air (or exhaust air) leaving a building. Heat is extracted from the exhaust air and is upgraded into useful heat energy for space heating and domestic hot water. As Heat Pumps do not create heat, EAHPs primarily rely on other heat inputs to a building such as heat gains from internal equipment/occupants or from an auxiliary form of heat energy into the building. Therefore they are applicable for very low heat loss applications. A very small proportion of heat is provided by the outside air itself similar to an Air Source Heat Pump. This type of Heat Pump requires a certain air exchange rate to maintain its output power.
A Ground Source Heat Pump (GSHP) is a unit which absorbs heat either directly or indirectly from the ground. This can be done either by extracting & re-injecting water from an aquifer (direct), or by using a ground heat exchanger (in-direct) which is usually a closed loop of pipework buried within the ground (vertically or horizontally) conveying a water/antifreeze mixture as the heat transfer medium. It upgrades this low temperature heat into useful higher temperature heat energy for space heating and domestic hot water. This can be in the form of ground/water to air (providing heated air for space heating) or ground/air to water (providing heated water for space heating and/or domestic hot water). Water Source Heat Pumps (WSHP) extract the heat from open water courses such as rivers, lakes and canals and can also extract water from sea water.
Micro Combined Heat and Power (Micro CHP) is a product which can generate heat and electricity simultaneously and from the same energy source. Micro CHP can be heat led (heat is the main output) or electricity led (electricity is the main output). For a heat led unit, a typical ratio is about 6:1 (heat to electricity) for domestic appliances.
Pitched Roof Mounting Kits are used to ensure Solar PV Panels and Solar Collectors are secured when installed on a pitched roof. The mounting kits have been tested for weather tightness, fire spread and wind uplift.
A Solar Photovoltaic (Solar PV) module absorbs and converts sunlight into electricity using semiconducting materials that exhibit the photovoltaic effect. Solar PV modules are supplied as a sealed unit with a specific voltage and wattage rating. Solar PV modules have to be combined in a system with other components (including an inverter, wiring and roof mounting kit) to provide electricity for a building.
A Solar Thermal collector absorbs sunlight to heat a liquid which can be used for domestic hot water. In some cases Solar Thermal is used for space heating or other uses however it is most often used for domestic hot water.
A Wind Turbine converts kinetic energy from the wind into electrical power. There are two main types of Wind Turbine; Horizontal Axis Wind Turbine (HAWT) and Vertical Axis Wind Turbine (VAWT). HAWTs have the main rotor shaft and electrical generator at the top of a tower, and must be pointed into the wind. VAWTs have the main rotor shaft arranged vertically and do not need to be pointed in to the wind to work.