Energy Efficiency Loan Fund (Wales)

Interest-free loans for energy efficiency and renewable energy projects in Wales.


Rhondda in Wales

The Carbon Trust can help small and medium-sized enterprises (SMEs) in Wales to fund new energy efficiency and renewable energy projects with interest-free loans of between £3,000 and £200,000. 

The Energy Efficiency Loan Fund has helped over 700 businesses in Wales save over £9m per year on their fuel costs.

About The Energy Efficiency Loan Fund


Is my business eligible?

To apply for an interest-free loan, your business must meet the following criteria:

  •  be a private sector SME in Wales
  •  have been trading for a minimum period of 12 months
  •  have an acceptable credit history
  •  project replaces existing equipment, and makes on-site fossil fuel savings 
  •  be eligible for funding within the context of de minimis state aid regulations
  •  demonstrate that the energy improvement of a project provides carbon emissions savings of at least 10%

We can support most projects where there is a carbon emissions saving such as commercial refrigeration and lighting.

Check your eligibility

Apply now

It only takes 15 minutes to apply and if successful, we can process your application within 10 working days.

Where do I start?

Start by reading :

Steps to success: applicant supporting information


  1.  Get a quote from your supplier of the estimated running cost for the proposal  
  2.  Complete the loan calculator to see how much we can offer you
  3.  Ask your supplier to complete the energy saving calculator
  4.  Check 'how to tick all the boxes' to ensure you have all of the right documents - including the Beneficial Ownership Declaration form

What other support is available for SMEs?

Explore our free guides and tools for a wide range of energy saving tips and advice for your business.


What's the supplier's role?

Applications MUST be completed by the customer. If your customer has already purchased, or placed an order for, any equipment, we are unable to provide funding towards their project.


Can the loan be used with other finance?

The loan amount is based on the project's energy savings, rather than cost, so additional finance may sometimes be required. 

If you have secured grant funding, the maximum loan amount we could provide is the net project cost less the grant funding. 

You can use company funds, or other unsecured lending.  We do not permit other finance to be secured on the equipment, if you are considering additional finance please contact us to discuss. 

Application process - How long does it take?

Applications are submitted online, and if all the supporting documentation provided is correct, we can issue a loan offer within ten working days - often quicker - subject to availability of funds. 

Where do the funds come from?

Welsh loans are funded from the Carbon Trust reserves. 

What is the loan repayment criteria?

The repayment term is based on the amount borrowed divided by the anticipated annual monetary savings. This is then rounded up to the next full year, to a maximum 4 year repayment term. Monthly repayments commence after commissioning. 

Which suppliers can I use?

We do not make supplier recommendations for your project. You are free to choose your own supplier. However, you must ensure you choose a supplier who can implement the project to your satisfaction. If you are having difficulty identifying a suitable supplier, you may wish to consider using one of the Carbon Trust's Accredited Suppliers who are listed on our Green Business Directory. 

Can my supplier complete my application form?

No. Our agreement is with you, and it is crucial that you complete the online application form, and are aware of the terms and conditions associated with it. 

Are you regulated to provide credit?

The Carbon Trust is authorised and regulated by the Financial Conduct Authority for consumer credit.  The Carbon Trust is a company limited by guarantee, registered in England and Wales (number 04190230) with its registered at 4th Floor, Dorset House, 27-45 Stamford Street, London, SE1 9NT.

Find out more and speak to one of our experts

Get in touch to discuss the best solution for your business and how we can help you achieve your sustainability goals.