You can also call us on +44 (0)20 7170 7000, or select 'Live Chat' to chat with one of our advisors.

We will use any personal information you provide in this form to deal with the request or application you make. However, we may also use it to contact you in the future. For more details please refer to our Privacy Notice.

Aberglasney Gardens - energy efficiency loan

Aberglasney Gardens is renowned as a plantsman’s paradise and is widely regarded as one of Wales’ finest gardens. Aberglasney turned to the Carbon Trust for a low cost finance solution to implement a new biomass-fuelled heating system.

Aberglasney gardens

Technical approach

Aberglasney Restoration Trust, which owns Aberglasney Gardens, was looking for a low cost finance solution for a proposed new biomass-fuelled district heating system. The system would provide heat and hot water for newly restored buildings, including a glasshouse and training facility, and older buildings, including holiday cottages and welfare areas, which were fuelled by costly tanker-delivered LPG. A Carbon Trust Accredited Supplier assessed the current energy usage of the five LPG boilers and reported the anticipated energy usage of the new biomass system. From this, they identified a potential reduction in energy usage from 337 996 kWh to 262 800 kWh consumed per year.

Biomass was the fuel of choice for practical, environmental and cost reasons. The new boiler was linked to a wider Heritage Lottery Fund project to restore the Old Piggeries and Cow Sheds into a heritage horticulture plant propagation and training facility. The new system is much simpler to maintain than the alternative, which would have been seven LPG boilers running off multiple LPG tanks.

Aberglasney Restoration Trust also qualified for the Non-domestic Renewable Heat Incentive (RHI). Once the three year Carbon Trust loan has been repaid, the Trust is expecting a further 17 years of RHI payments, which will contribute towards ongoing fuel and maintenance costs. Further to achieving cost savings, the Trust is proud to have reduced its negative environmental impact, following the change from LPG to biomass.

The team at the Carbon Trust was very efficient and friendly to work with, and were understanding of the challenges of our project timetable. The loan has enabled the Trust to avoid grant funding and therefore qualify for the Renewable Heat Incentive, which will be a significant help towards the running costs of the new biomass system.

Ran Foster-Mason, Aberglasney Restoration Trust

Aberglasney gardens

Energy Efficiency Loan Fund

Interest free loans are available to small and medium-sized businesses in Wales wanting to reduce their energy bills and carbon footprint by installing more efficient equipment and renewable technologies. Businesses must have fewer than 250 employees to qualify and the size of loan offered is based on the CO2 savings of the project, which will be assessed by the Carbon Trust. A range of energy efficient building and industrial process technologies are considered, including lighting, heating, refrigeration, air conditioning, pipe insulation motors and biomass.

Read more: Aberglasney Gardens Case Study (PDF)


Eligibility and availability of loans are subject to Terms and Conditions. For more details please see the Energy Efficiency Loan Fund page .

Related services

Back to top