Case Study – Ash Barton Estate

Ash Barton Estate £38K annual savings via sustainable upgrade


Built in 1776, The Ash Barton Estate is a Grade II listed manor house set on 25 acres of stunning Devon countryside. The Estate is located in Braunton, North Devon, offering family holidays, weddings and conferences.


The Estate was using heating oil to heat the 13 bedrooms and 9 bathrooms which not only proved very costly but the 4 separate oil boilers were becoming unreliable and difficult to maintain. These were the driving factors for the owner, Simon Daukes, to consider more sustainable solutions – a central biomass boiler for heating and solar PV.

The year-round nature of the estates business meant the timescale for the installation of these solutions was very tight, only 8 weeks were available for a complete turnkey installation.


1. Reduce costs

It was agreed that a central biomass boiler (to heat the whole of the Estate through a district heating scheme) was the best and most cost-effective option. With space being no issue and wanting to benefit from a fully automated system, IU Energy recommended a 199kW ETA Hack wood chip biomass boiler with a full ETA control package.

2. Improved comfort to customers

With the heating systems now operating correctly, areas of the estate that previously struggled for heat are comfortable regardless of the weather.

3. Increased energy cost security

The use of biomass as an alternative to heating oil reduces energy price fluctuation risk. The estate purchases biomass fuel from local wood chip supplier ‘Bonedry Woodfuel’ whose depot is located less than 5 miles from the estate. The boiler also has a 5-year warranty to protect the estate against any break-downs or maintenance works.

4. Benefit from Government’s Renewable Heat Incentive (RHI) payments

The UK Government’s RHI scheme encourages the uptake of renewable heat technologies by offering regular payments for producing heat via renewable or low carbon sources.

5. Additional cost savings

IU Energy also installed a 50kW array of Solar PV and provided a turnkey solution by managing an upgraded electricity supply

The new electrical supply has increased the reliability of the electric supply to the site and reduced outages, as well as allowing additional expansion of the estate’s operation into previously redundant buildings.


The estate has benefited greatly from the biomass boiler & solar PV:

Saving £9,500 a year in fuel costs

Earning £22-25,000 a year in RHI payments

The solar PV generates an annual benefit of £6,500

Therefore, the estate has made a total annual saving of £38,500.

The payback period for the biomass and solar PV installation will be just 4 years, proving it to be a financially viable solution as well as contributing to carbon reduction and a cleaner future.


“IU Energy were by some margin the most helpful, intelligent and responsive company we talked to when evaluating the project. They were incredibly professional, responsive and helpful during installation and they have been attentive and efficient post installation. I have already strongly recommended them to two friends and I will continue to do so.” – Simon Daukes, Owner

You can download this case study here – Ash Barton Estate Case Study


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