MCS (microgeneration certification)

Certification & assessment schemes · awarded by MCS Service Company · serves: Renewables installers

Notices demanding it: 36; a floor
Said “must”: 15; explicit obligation
Open right now: 0
Value gated: £426m; a floor

Published values on the notices that demand it — a floor, not a total.

The demand curve

Notices demanding it per 10,000 published, by year — rate-normalised so corpus growth never masquerades as demand. Complete years only.

0.4

0.7

0.3

0.5

0.2

0.6

2019202020212022202320242025

The pale bars are 2025 onward. The Procurement Act went live on 24 February 2025 and changed how notices are written, so the step across that date is partly a change in convention and not only a change in demand. We have not measured how much of it is which, so please do not read this as a trend.

The receipts

Notices that demand it, and the sentence each demand was found in. Nothing is counted here without one.

Changing Rooms Refurbishment - Cornmill Lane, Tutburymandatory
Tutbury Parish Council
The ASHP must be designed and installed by an MCS-certified installer.
GMCA 374 - FC036 Salford CC (Lot 1) - 2025/26 Solar PV Programmemandatory
Greater Manchester Combined Authority
The photovoltaic system installer and products used shall be certified by the microgeneration certification scheme (MCS).
2838_23 Renewable Energy Solutionsmandatory
Espo
Tenderers must be MCS (Microgeneration Certification Scheme) certified.
Whole House Energy Retrofit Contractmandatory
Flintshire County Council
Installed measures must be delivered in line with PAS 2035, PAS 2030:2019 and the Microgeneration Certification Scheme (MCS) and the Council must be supported by the Contractor in all efforts to ensure compliance.
Whole House Energy Efficiency Retrofit 2023mandatory
Grŵp Cynefin
Installed measurers must be delivered in line with PAS 2035, PAS 2030:2019 and the Microgeneration Certification Scheme (MSC).
NAC/5019 Servicing & Maintenance of Non-Domestic Solar Photovoltaic Systems & Provision of a Remote Solar PV Monitoring Systemmandatory
North Ayrshire Council
Bidders applying for Lot 1 must be Microgeneration Certification Scheme (MCS) Certified.
Solar Victoria Hospital Dealmandatory
Kent Community Health NHS Foundation Trust
The installer of the Solar PV must be MCS accredited and Constructionline Silver verified.
GB-Hemel Hempstead: Griffin Fields Heating Worksmandatory
Hightown Housing Association Ltd
Contractor must be MCS certified.
P V (Solar) Water Heatingmandatory
Herefordshire Housing Limited
Supplier must be MCS approved
Middletons Yard Solar PV
Bassetlaw District Council
MCS Certificate: Proves the installation is certified for export tariffs (e.g., SEG).
Warm Homes Grant
Nottinghamshire County Council
All aspects of the project will be managed in line with new updated PAS:2035/2030 and Microgeneration Certification Scheme (MCS) throughout the entire process.
The Assessment, Supply and Installation of Whole or Partial House Retrofit in Residents'Homes Under the Requirements of The Warm Homes Local Grant
Sunderland City Council
Sunderland City Council are seeking to appoint a PAS2035 / MCS accredited contractor to provide a comprehensive retrofit service that installs partial and whole-house, energy-performance and low carbon heating measures from September 2025 until the expected project completion in March 2028.

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Method: Every count here is a floor. We match the text of the notice, and a notice description is a summary — most tender packs demand things it never mentions.“Said must” counts only explicit obligation language in the matched sentence itself; anything ambiguous is counted as a mention, never as mandatory. Trend compares rates per 10,000 notices per complete calendar year.