Standards & Tools Library
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MCS Standards and Scheme documents have been designed with input from product and installer representatives, consumer groups, trade associations and technical experts from across industry. Our Standards and Tools library is categorised by technology type.
Installer Standards
General Scheme Requirements
| MCS Reference | Description | Version Number | Issue Date |
|---|---|---|---|
| MCS 001-1 | The MCS Contractor Standard – Part 1: Requirements for MCS Contractors |
4.2 | 20.10.2020 |
| MCS 001-2 | The MCS Contractor Standard – Part 2: The Certification Process |
4.2 | 20.10.2020 |
| MCS 001-1 | MCS Contractor Certification Scheme Requirements Part 1: Requirements for MCS Contractors |
3.2 (superseded) | 10.11.2017 |
| MCS 001-2 | MCS Contractor Certification Scheme Requirements Part 2: The Certification Process |
3.2 (superseded) | 10.11.2017 |
| MCS 020 | 1.3 | 19.06.2019 | |
| 04.10.2024 | |||
| 11.09.2023 | |||
| MCS 023 | 2.2 | 19.06.2019 | |
| MCS 025 | 2.0 | 07.09.2022 |
Supplementary Scheme Documents
| MCS Reference | Description | Version Number | Issue Date |
|---|---|---|---|
| MGD 001 | Complying with MCS 001 – Guidance on the MCS Contractor Standard |
2.1 | 20.10.2020 |
| MGD 001 | 1.3 | 28.07.2019 | |
MCS Domestic RHI Metering Guidance is under review. The information within the document is for guidance only; certain sections or requirements may have been superseded by other standards or legislative requirements. Users of this document shall ensure that they meet any updated obligations that do not appear within this document. For further reference, please see: Ofgem Domestic RHI Metering Guidance |
Biomass Systems
| Description | Version Number | Issue Date | |
|---|---|---|---|
| MIS 3004 | 4.2 | 06.05.2015 | |
| MGD 006 | 1.0 | 20.04.2020 | |
MCS Domestic RHI Guidance (due to be withdrawn on 1st April 2022) For reference, please see: Ofgem Domestic RHI Metering Guidance |
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| 1.8 | 25.07.2019 | ||
| 1.1 | 04.07.2019 | ||
| CC 001 | 2.1 | 29.07.2019 | |
Heat Pumps
| MCS Reference | Description | Version Number | Issue Date |
|---|---|---|---|
| MIS 3005-D | 2.0 | 02.12.2024 | |
| MIS 3005-D | 1.0 | 01.12.2021 | |
| MIS 3005-I | 1.0 | 01.12.2021 | |
| MGD 007 | Heat Pump Reference Information and Tools (contains: Domestic Hot Water Cylinder Selection Guide; GSHP Hydraulics Design Guide; Heat Emitter Guide and Ground Loop Sizing Tables) |
1.0 | 14.07.2021 |
| 14.07.2020 | |||
MCS Domestic RHI Guidance (due to be withdrawn on 1st April 2022) For reference, please see: Ofgem Domestic RHI Metering Guidance |
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| MCS 031 | Heat pump pre-sale information and system performance estimate |
4.0 | 18.12.2024 |
| MCS 031 tool | 4.0 | 18.12.2024 | |
| MCS 031 | 3.0 | 16.02.2022 | |
|
Launch the new Heat Load Calculator tool. This is available to certified installers. To register you must use your MCS certification number and email associated with the MID. |
12.12.2024 | ||
|
Use of this tool is optional, as others are available, and MCS cannot guarantee that it is error-free. Users of the tool do so at their own risk. |
1.10 | 07.04.2021 | |
| 1.2 | 12.07.2019 | ||
| CC 002 | 3.2 | 25.07.2019 | |
The MCS Specification for Ground Source Closed-loop Drilling |
1.0 | 25.02.2022 |
Micro CHP
| MCS Reference | Description | Version Number | Issue Date |
|---|---|---|---|
| MIS 3007 | 4.0 | 27.04.2022 | |
Small Wind Turbines
| MCS Reference | Description | Version Number | Issue Date |
|---|---|---|---|
| MIS 3003 | 4.0 | 06.12.2024 | |
| MIS 3003 | 3.5 | 12.07.2019 | |
| MCS 033 | 1.0 | 06.12.2024 | |
| 1.0 | 06.12.2024 | ||
NOABL Wind Speed Database |
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Solar PV
| MCS Reference | Description | Version Number | Date Issued |
|---|---|---|---|
| MIS 3002 | 5.0 | 10.05.2023 | |
| MIS 3002 | The Solar PV Standard (Installation) – valid until November 2023 |
4.0 | 16.09.2020 |
| MGD 005 | 1.0 | 16.09.2020 | |
| MGD 003 | 2.0 | 27.04.2022 | |
|
(approved for use alongside MIS 3002) |
2.0 | 24.07.2013 | |
| RC62 | 2.0 | 23.02.2023 |
Battery Storage
| Description | Version Number | Issue Date | |
|---|---|---|---|
| MIS 3012 | 1.0 | 22.11.2021 | |
| MGD 003 | 2.0 | 27.04.2022 | |
Solar Heating
| MCS Reference | Description | Version Number | Issue Date |
|---|---|---|---|
| MIS 3001 | 5.0 | 01.12.2021 | |
| MCS 024 | 2.0 | 01.12.2021 | |
| 1.4 | 01.12.2021 | ||
MCS Domestic RHI Guidance (due to be withdrawn on 1st April 2022) For reference, please see: Ofgem Domestic RHI Metering Guidance |
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Important Information on MCS 012 for MCS Solar Photovoltaic and Solar Thermal Contractors |
2.2 | 04.07.2019 | |
Technical Note: Calculation for Solar Thermal Total Installed Capacity |
1.1 | 10.07.2019 | |
Product Standards
Supplementary Scheme Documents
| MCS Reference | Description | Version Number | Issue Date |
|---|---|---|---|
| V1.0 | 24.08.2021 |
General Scheme Requirements
| MCS Reference | Description | Version Number | Issue Date |
|---|---|---|---|
| MCS 010 | 2.0 | 24.09.2019 | |
| MCS 011 | 2.1 | 21.06.2019 |
Bespoke Building Integrated Photovoltaic Products
| MCS Reference | Description | Version Number | Issue Date |
|---|---|---|---|
| MCS 017 | 2.0 | 01.08.2024 | |
| MCS 017 | Product Certification Scheme Requirements: Bespoke Building Integrated Photovoltaic Products |
1.3 | 01.12.2019 |
Biomass Systems
| MCS Reference | Description | Version Number | Issue Date |
|---|---|---|---|
| MCS 008 | 3.1 | 01.12.2019 | |
| MGD 006 | 1.0 | 20.04.2020 |
Heat Pumps
| MCS Reference | Description | Version Number | Issue Date |
|---|---|---|---|
| MCS 007 | 6.1 | 01.12.2019 | |
| MCS 026 | 1.0 | 01.05.2015 | |
| MCS 027 |
|
2.1 | 22.07.2019 |
| MCS 028 | 1.1 | 29.07.2019 |
Micro CHP
| MCS Reference | Description | Version Number | Issue Date |
|---|---|---|---|
| MCS 014 | Product Certification Scheme Requirements: Heat-led micro-cogeneration packages or add-on units |
2.1 | 01.12.2019 |
| MCS 015 | 2.1 | 01.12.2019 | |
| 1.1 | 07.08.2019 | ||
| 1.1 | 10.07.2019 |
Small and Micro Wind Turbines
| MCS Reference | Description | Version Number | Issue Date |
|---|---|---|---|
| MCS 006 | 3.0 | 01.08.2024 | |
| MCS 006 | Product Certification Scheme Requirements: Small Wind Turbines |
2.2 | 01.12.2019 |
| 15.01.2014 | |||
Guidance Note – requests regarding certification of potentially novel wind turbine designs |
1.1 | 06.08.2019 | |
Technical Note: guidance regarding inverter changes in small wind turbine systems |
2.0 | 16.01.2013 |
Solar PV
| MCS Reference | Description | Version Number | Issue Date |
|---|---|---|---|
| MCS 005 | 4.0 | 01.08.2024 | |
| MCS 005 | Product Certification Scheme Requirements: Solar Photovoltaic Modules |
3.1 | 01.12.2019 |
Solar Heating
| MCS Reference | Description | Version Number | Issue Date |
|---|---|---|---|
| MCS 004 | 4.0 | 01.08.2024 | |
| MCS 004 | 3.4 | 01.12.2019 |
Solar Mounting Kits
| MCS Reference | Description | Version Number | Issue Date |
|---|---|---|---|
| MCS 012 | Product Certification Scheme Requirements: Solar Mounting Kits |
3.0 | 16.05.2023 |
QMS Templates
To support Installers in putting together a QMS, MCS have made templates available that can be used in conjunction with the relevant Standard.
These templates are for guidance; and don’t strictly need to be used.
Guidance Document MGD 001 provides guidance on how to interpret MCS 001 and, if used alongside the templates, this should help put the necessary documents in place prior to an assessment by your chosen Certification Body for satisfying this Standard.
Installers already using another QMS may be best advised to retain and maintain those systems. Using these templates is not a guarantee of certification, as the assessment will focus on whether the system is complete, effective and properly maintained.