Making a Robust and Effective Heat Decarbonisation Plan LCSF Application

The purpose of the Grant Scheme is to help make eligible buildings more energy efficient and install low carbon heating measures, for example insulation, glazing, heating controls, and heat pumps. 

A full list of technologies eligible for Grant Scheme funding is available here. Those eligible technologies are split into four different categories:


Category One


Technologies that directly contribute to the heat decarbonisation of a building by installation of a low carbon heating technology. For example, heat pumps and connections to low carbon heat networks.


Category Two


Technologies that do not directly contribute to the heat decarbonisation of a building but reduce overall energy demand and so will support future heat decarbonisation. For example, insulation, glazing, ventilation.*


Category Three


Technologies that do not reduce carbon emissions but enable future heat decarbonisation projects to take place – these technologies are exempt from the requirement to meet the £500/tCO2 lifetime criteria. For example, metering, electrical infrastructure, battery storage.*


Category Four


Technologies that are only permitted if:   
(a) they are used to replace coal-fuelled heating systems or oil-fuelled heating systems, AND   
(b) in Salix’s reasonable opinion, it has been demonstrated that it is not viable for a low-carbon heating system to be installed within the building as a replacement for the coal-fuelled heating or oil-fuelled heating system.  

For example, gas-fired CHP and gas boiler replacement projects would fit into this category provided they meet the above conditions.

*Projects that fall into Category 2 and Category 3 determine if a heat decarbonisation plan is mandatory, based on the building(s) and technologies you seek to deploy in your project as outlined below.

A heat decarbonisation plan is required if your project does not satisfy either of the following conditions:

A. Category 2 and 3 measures are combined with measures in Category 1 in the same building(s)

B. Category 2 and 3 measures are for buildings that already use low-carbon heating for all their heating requirements

A written commitment is then required to deliver future heat decarbonisation for the buildings in which your project is to be deployed.

This commitment must include all of the following:

  • A commitment to produce and submit to Salix, a Heat Decarbonisation Plan by 30th September 2021.
  • An explanation within the Heat Decarbonisation Plan setting out how the building(s)’ fossil fuel heating system(s) will be replaced by low carbon heating when the fossil fuel system(s) reach the end of their natural lifetime. It is important to consider what will happen when your current heating plant has reached the end of its life and suitable upgrades have not been made to your building to manage this. The type or types of low carbon heating systems, and the likely timescale for this, must be identified. A template for this Heat Decarbonisation Plan is provided here if there is not an existing document, and this can be used to help create this plan if support is needed.
  • The Heat Decarbonisation Plan must include details of how it has been approved by your public body, how this plan is going to be implemented, and that there is a commitment to apply for and utilise funding where available to deliver the Heat Decarbonisation Plan.

To view or amend your application please login to the Salix website and click onto the portal once again to view submissions. If you are having trouble finding your application please email [email protected]