Domestic FAQs

What is a domestic system?

A domestic system is residential and uses biomass or solar thermal system to provide heating and/or hot water for a single dwelling. The dwelling may be composed of one or more buildings however, as long as the site is covered by one council tax bill for all the buildings served, it is still considered a domestic system. Sites with two or more buildings paying separate council tax or with at least one building paying business rates are defined as non-domestic or commercial sites.

Learn about SOLARFOCUS domestic applications in our case study section.

Are domestic systems eligible for the Renewable Heat Incentive?

Yes. All domestic systems can receive the Domestic Renewable Heat Incentive.

To qualify the system must be accredited with the Microgeneration Certification Scheme(MCS) and the homeonwner must be able to present an up to date Energy Performance Certificate(EPC) and Green Deal Assessment(GDA).

What are the advantages of installing a biomass system for domestic applications?

With a biomass heating system domestic users benefit from reduced fuel bills and peace of mind. Biomass is generally less expensive than fossil fuel alternatives. Using a local, environmentally sustainable fuel source improves energy security and reduces man-made carbon emissions.

What types of fuel can be used in domestic systems?

The most popular types of wood fuel for domestic systems are wood pellets and logs.

What is the most popular system for domestic applications?

The most popular biomass boilers for domestic applications are wood pellet boilers. In the SOLARFOCUS range, the most popular boilers are the Therminator II Pellet & Log boiler and the PelletTop.

What is the Microgeneration Certification Scheme (MCS)?

The MCS is a scheme to provide assurance to customers for domestic scale generation systems. It provides both for accreditation of installers and certification of products.

What is an Energy Performance Certificate?

An Energy Performance Certificate (EPC) is issued by a qualified assessor to show how energy efficient a building is. It shows the result with a rating between A and G, where A is the most efficient.

Does the system have to be installed by an MCS certified installer?

Yes, the Microgeneration Certification Scheme (MCS) must be used for smaller systems:
Any system under 50kW (electrical) or 45kW (thermal) must be installed by an MCS-accredited installer to be eligible for the tariffs.

Is there a list of approved equipment manufacturers?

For systems below 50kW, they will have to be accredited under the MicroGeneration Certification Scheme (see Larger systems have to be accredited through the ROO-FIT process, but there are no specific product requirements.

Learn about SOLARFOCUS domestic applications in our case study section.


Contact us for more Domestic Renewable Energy information


For more domestic renewable energy information, simply get in touch with the Oxford Renewables team, who will be happy to help in any way we can. Give us a call on 0118 984 1753, or leave your details on our contact us page and await a quick reply.

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