Key terms explained: Non-Domestic RHI

This is a calculator available on the Ofgem website that can be used to calculate greenhouse gas emissions as part of the Actual value method. A user manual is available which explains how to use the calculator.

The ability to trace a product from its point of origin through the supply chain to end product.

It is possible to change the ownership of a plant, however, there are certain requirements including notifying us 28 days before the change occurs. For more information see the Guidance.

Combined Heat and Power plant.

The Clean Heat Grant scheme (CHG) is a proposed government grant scheme designed to help increase deployment of low-carbon heating technologies. Targeted at households and small non-domestic buildings, the scheme will offer upfront capital grants to enable the installation of heat pumps and, in limited circumstances, biomass boilers.

In some cases, when a fuel is produced, other useful products are made at the same time. These are termed ‘co-products’.

This means all the necessary procedures and tests have been carried out on a plant, to show that it is capable of operating and delivering heat. Installation and commissioning may happen on the same day for smaller installations, but for large installations the date of installation and date of commissioning may be different.

This is the main pipe to which plants supply heat, and from which heat uses are supplied. A heating system may have multiple common headers.

This is a batch of fuel. Each consignment should have the same characteristics in terms of feedstock type, biomass form (solid biomass only), country of origin, classification of the fuel (residue, product, and so on), compliance with land criteria, and compliance with the greenhouse gas emissions criteria.

Cooker stove means a biomass stove which is capable of generating heat for the purpose of cooking food but which is designed to ensure that heat generated for that purpose is incidental to, and cannot be controlled separately from, any heat generated for the purpose of space heating or domestic hot water heating.

The CPI is a measure of inflation and CPI rates are produced annually by the Office for National Statistics (ONS). Applications submitted for the Non-Domestic RHI on or after 1 April 2016 have their tariffs adjusted in line with the CPI. Tariffs will be adjusted in accordance with CPI on 1 April every year. Applications submitted for the Non-Domestic RHI before 1 April 2016 have their tariffs adjusted in line with the Retail Prices Index (RPI).