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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.

The Microgeneration Certification Scheme (MCS) has today launched a revised layout of the MCS website, which we hope will ensure our users have a better experience when navigating through the website.

The changes to the website include:

  • A general revision to the layout. You will note that there are now individual pages for technology specific installation and products standards which we hope will make it easier to locate relevant documents;
  • A new “submit an enquiry” function has been added which allows consumers to submit enquiries directly to MCS certified installers by completing an online form. The enquiries will be sent to the email address that you have registered with MCS.

The Microgeneration Certification Scheme has published MCS 007 Issue 5.0.

The update includes:

MCS 007 clause 8.1.4:

‘Evidence in accordance with MCS 011 shall be provided of actual testing of products at a relevant test point preferably selected from those defined in Table 2a.

However, providing the heat pump has achieved MCS certification on or before 25th September 2015, evidence in accordance with MCS 011 using test points detailed in Table 2b shall be used if those in Table 2a are not available.’

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.