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About MCS

MCS is a mark of quality and demonstrates
compliance to industry standards that companies
strive to meet. It highlights to consumers that
companies are able to consistently install or
manufacture to the highest quality every time.

MCS 005 Issue 2.4 is a minor update to MCS 005 issue 2.3. It is available for reference from the date of publication 18/09/2015. Manufacturers or importers of microgeneration systems who have certificated a microgeneration product in accordance with MCS 005 may commence working in accordance with this update from the date of publication 18/09/2015. Manufacturers or importers of microgeneration systems who have certificated a microgeneration product in accordance with MCS 005 shall commence working in accordance with this update from 18/09/2017.

The update includes:

-          Addition of Clause 7. Performance and Testing Criteria

-          Clauses references throughout the standard

-          Updated BS EN 61646:1997 to 2008 "Thin film terrestrial photovoltaic (PV) modules – Design qualification and type approval"

If you have any questions please contact the help desk. 0207 090 1082

Ofgem has published a helpsheet relating to the Energy related Products (ErP) Directive and the domestic Renewable Heat Incentive. A link to this helpsheet is available here

You can also find information on the MCS website  - link here.

Planned maintenance on the MCS Installation Database (MID) was completed between 15:00 and 17:00 on Tuesday 15th September. If you experience any issues in using the database then please try refreshing the page by pressing F5. If you continue to experience problems then please contact the MCS helpdesk by emailing This email address is being protected from spambots. You need JavaScript enabled to view it..

The MCS Installation Database (MID) will be undergoing maintenance and will not be accessible from 15:00 on Tuesday 15th September. Please do not try to access the database during this time as you will be unable to generate certificates and it is unlikely that any MCS certificates will be sent out. We expect the website to be unavailable for at least 2 hours and an update will be placed on the news and events section of the MCS website when the maintenance is complete.

As part of the maintenance work, MCS will be implementing some upgrades to the MID. The upgrades include:

As you may be aware we are currently in the process of establishing a new governance structure within the MCS Scheme.

The new structure follows a two tier arrangement made up of a charity (MCS Charitable Foundation) and trading arm (the MCS Service Company). The MCS Service Company (MCSSCo) is a wholly owned subsidiary of the charity.

Having successfully appointed 6 trustees to the board of the charity we are now commencing the appointment process for a new board of Directors for MCSSCo.

As previously announced the Microgeneration Certification Scheme (MCS) is in the process of establishing the Microgeneration Certification Scheme Charitable Foundation (MCS CF).

The aim of the MCS CF is to provide both confidence and trust in renewable energy and low carbon technologies and those providing and maintaining it, with a particular focus on consumer and environmental protection. 

We are delighted to announce that we have now appointed six Trustees to serve on the inaugural board of the Charity.

On the 23/07/2015 the Microgeneration Installation Database underwent changes to increase system security and efficiency. As a result certain operating systems and internet browsers will no longer work properly with the database. Please see below for further details.

The Department of Energy and Climate Change (DECC) have recently sent out the following guidance relating to the new Biomass Sustainability requirements.  You may already be well aware of this information, but if not please read on.

Today DECC has published an update to the RHI regulations, ensuring the regulations now reference the latest heat technology standards (heat pumps, biomass and solar thermal), which were updated on  6th May 2015.

For details on the changes brought about by these regulations, along with a summary document, can be found by following the links below:

Renewable Heat Incentive: Amendment Regulations 2015

Renewable Heat Incentive: Introduction of the Ecodesign of Energy-related Products Directive