Apply to change your standalone medium combustion plant or specified generator permit
Use this service to change your medium combustion plant or specified generator permit.
Check which changes you can make
Knowing your change type helps you:
- prepare the right information
- know what we charge
Change a name or address
To change a name, address or contact details where there has been no change of legal entity, apply for an administrative change.
Remove a combustion unit
Apply for a minor technical variation.
Change or add a combustion unit
Follow these steps to find your change type.
- Start with the minimum screening distances to habitat sites table on this page.
- If your changed or new combustion unit screens out, apply for a minor technical variation.
- If your changed or new combustion unit screens in, you then need to use the Simple Calculation of Atmospheric Impact Limits Combustion screening tool (SCAIL).
- If your changed or new combustion unit screens out using the SCAIL screening tool, apply for a simple bespoke normal variation.
- If your changed or new combustion unit screens in using the SCAIL screening tool, apply for a complex bespoke variation. You will need to provide an air quality modelling assessment and any other relevant assessments with your application.
- If you currently have a Standard Rules permit and your proposed changes mean that you can no longer meet these rules you will need to apply for a substantial variation, either simple or complex, depending on whether you need to provide an air quality modelling assessment with your application.
- We may also advise you that you need to apply for a substantial variation if you are planning significant changes to your operations that will need a high level of detailed assessment during the determination.
Minimum screening distances to the habitat sites table
|
Fuel type used |
Rated thermal input (MWth) of any MCP |
Minimum distance from MCP to a Site of Special Scientific Interest (SSSI) or marine conservation zone (metres) |
Minimum distance from MCP to a Special Conservation Area (SAC), Special Protection Area (SPA) or Ramsar wetland (metres) |
|---|---|---|---|
|
Natural gas, gas oil and woody solid biomass |
1 to 2 |
750 |
750 |
|
Natural gas, gas oil and woody solid biomass |
2 to 5 |
1,000 |
1,000 |
|
Natural gas, gas oil and woody solid biomass |
5 to 10 |
1,500 |
1,500 |
|
Natural gas, gas oil and woody solid biomass |
10 to 20 |
2,000 |
2,500 |
|
Natural gas, gas oil and woody solid biomass |
20 to 50 |
2,000 |
5,000 |
|
Gas other than natural gas |
1 to 2 |
1,000 |
1,000 |
|
Gas other than natural gas |
2 to 5 |
1,500 |
1,500 |
|
Gas other than natural gas |
5 to 10 |
2,000 |
4,000 |
|
Gas other than natural gas |
10 to 20 |
2,000 |
5,000 |
|
Gas other than natural gas |
20 to 50 |
2,000 |
10,000 |
|
Solid and liquid heavy fuel oil |
1 to 2 |
2,000 |
2,000 |
|
Solid and liquid heavy fuel oil |
2 to 5 |
2,000 |
4,000 |
|
Solid and liquid heavy fuel oil |
5 to 10 |
2,000 |
8,000 |
|
Solid and liquid heavy fuel oil |
10 to 50 |
2,000 |
10,000 |
Prepare the information we need
You need to know:
- your permit number
- any pre-application reference
- the type of variation you want to make
- if offences affect relevant people
- if insolvency or bankruptcy affects relevant people
- what declarations to make
- our permit charges
- how to pay
If you are proposing to change or add a combustion unit to your permit, you will need to know the:
- combustion unit unique identifier number
- operational start date of the combustion unit
- size (capacity) of the combustion unit
- fuel used by the combustion unit
- operating hours
You will need to upload some or all the following documents to your application.
- a Simple Calculation of Atmospheric Impact Limits Combustion screening tool (SCAIL) results template
- an energy efficiency report (if the total aggregated net thermal input of your MCP / SGs is 20 MW thermal input or more).
- emissions monitoring of the medium combustion plants or specified generator completed in the last two years (if available)
- a summary of the proposed changes in non-technical language
- any current or past bankruptcy or insolvency proceedings against you
- evidence if you are claiming confidentiality or national security
- a declaration from the current permit holder(s), or evidence that you cannot trace them
If your medium combustion plant or specified generator is also a Part B activity, please email mcpd.queries@cyfoethnaturiolcymru.gov.uk for information on how to complete a Best Available Techniques assessment.
Apply online to change your permit
Timescales
We will make a decision within four months of receiving a complete application and the correct fee.
We will check your application and confirm it is complete. If it is complete we call this ‘duly made’. If it is not complete we may request further information from you. The four month timescale does not begin until we consider the application duly made.