MCS launches consultation on new Battery Storage Product Standard

October 29, 2026

Battery storage is the newest technology to MCS, brought into scope of the installer Scheme in 2021. Since then, it has gone from strength to strength and is now the fastest growing MCS-certified technology, with more than 60,000 installed in UK homes and small businesses in 2026 as of the end of September – already surpassing last year’s record-breaking total by over 50%.

To support the continued growth of battery storage in the UK, MCS is creating a Product Standard to sit alongside the existing Installation Standard. This Standard will reinforce confidence in the quality of products used by MCS-certified installers.

MCS is developing this Standard with industry to ensure it meets the needs of the sector. The draft of The Battery Storage Product Standard (MCS 042) has been developed by MCS’s Battery Storage Technical Working Group, made up of industry experts including installers, manufacturers, trade associations and certification bodies.

MCS is now inviting comments from stakeholders on the draft Standard to gather industry feedback, ensuring it adds maximum value to a rapidly evolving sector. The deadline for submitting comments is 11:59pm on Tuesday 10 November 2026.

Please send your responses to consultations@mcscertified.com using the forms provided here.

Once the consultation has finished, MCS will review all feedback, finalise the standard with the Battery Storage Technical Working Group, and publish. This is the first step in the process, and MCS will continue to provide updates as it progresses towards fully implementing the Battery Storage Product Standard into the Scheme.

mcscertified.com