Open letter on the eligibility of ISO 4064:2014 and MID MI-001 water meters in the GB and NI Renewable Heat Incentive Schemes
- Consultation status:
- Closed (with decision)
- Publication date:
- Closing date:
- Industry sector:
- Generation and Wholesale Market
- Scheme name:
- Non-Domestic RHI
This open letter sets out Ofgem’s understanding of the requirements of BS EN ISO 4064-2014 (“ISO 4064-2014”) and the Measuring Instruments Directive (“MID”) Annex MI-001, and whether heat meters that use flow meters that meet the requirement of these standards also meet the requirements stipulated in regulation 2 of both the GB Regulations and NI Regulations for a “class 2 heat meter”. The open letter is seeking views on this understanding, as well as feedback on Ofgem’s proposed course of action in relation to the these meters.