What you need to do

You must take and submit meter readings every three months from your accreditation date. This can be found in the letter you received from us when you were accredited to the RHI scheme. See the Easy Guide to Metering Requirements, Understanding your metering requirements and Metering FAQs for more information.

When to take readings

You need to take a meter reading at the same time every quarter (or every month for large installations). You’re permitted to take the reading at any point during a three-day window on either side of that date. (For example, if your reading date is 10 July, you could take it any time between 7 July and 13 July).

Our date calculator spreadsheet will help you plan when to take meter readings.

Things to check

To begin with, you need to make sure your meters are installed correctly. See the Metering Placement Examples for help.

Before taking each reading, you need to check that:

  • Your meter is configured to take the reading in kWhth (kilowatt hours of heat). If your meter is in MWhth (megawatt hours of heat) you need to convert the reading. There’s a conversion table in the Easy Guide to Periodic Data Submissions.
  • The number of decimal places on the meter is correct; you can compare the opening or previous reading on the same meter.
  • The meter serial number corresponds with the one on your application form.

Our Additional information on meter readings document contains more information on what you need to do. You can learn more about calculating heat loss appropriately in our Heat Loss Calculations Acceptance Criteria document.

Submitting periodic data

To submit periodic data you need to log in to the Non-Domestic RHI Register and select the Periodic Data tab at the top of the screen. Our Guide to Using the RHI Register or Easy Guide to Periodic Data Submissions will help you with this.

Fuel and your ongoing obligations

For information on keeping fuel records, staying compliant with air quality and sustainability requirements, and reporting on contaminated fuels, see the following documents:

Your other obligations

There are other ongoing obligations, and failure to comply with any of these may delay or affect your payments. Any change in fuels used should immediately be reported to Ofgem.

Our Easy Guide to Compliance provides more information. This is not a full list of scheme rules – it is important to consult our Guidance for full requirements.

All RHI scheme participants may be selected for an audit at any time, see further details on audit and compliance.

You must recalibrate your meter(s) every 10 years or per the manufacturer’s instructions, whichever is soonest, in order the remain compliant with your ongoing obligations. More information on this can be found in the Guidance Volume 2 document.

If you’re a biomethane producer

Biomethane producers should see Guidance Volume 2, Chapter 12 for information about periodic data and ongoing obligations, plus the Biomethane declaration form and Biogas and Biomethane Apportioning tool.

I don’t understand a term being used? (link to glossary)

Publications and updates