renMain

With ever increasing fuel costs, investing in renewable technologies is now becoming a necessity rather than a luxury. To help explain all the different types of renewables, please e-mail us and we will send you our leaflet on going green. If you would like a free, no obligation quotation for any of the renewables we do, click here.We specialise in following areas of renewable energy:

Solar Thermal

Heating of domestic hot water via solar collectors. Typical installation costs around £8000 including a replacement high efficiency boiler. This product qualifies for the Renewable Heat Incentive scheme payments (RHI). Solar thermal systems soak up and retain heat from the sun’s rays via collectors usually fitted to your roof.

How does it work?

Solar thermal systems use solar panels called collectors to collect heat from the sun and use it to warm water which is stored in a hot water cylinder. It can heat your domestic hot water and some systems can even provide your central heating.

Do I need a new boiler?

Most solar thermal installations can work with existing central heating boiler installations. As solar installations include a hot water cylinder, power showers and high performance showers work perfectly.

Solar PV (Photovoltaic)

Production of electricity via solar collectors. Typical installation costs around start from £5000. This product qualifies for the Feed in Tariff payments (FiT). Solar PV is made up of modules, typically around 1m x 1.5m. Arrays can be designed to accommodate virtually any size and shape of roof as they can be mounted vertically and horizontally.

Can it be fitted on my roof?

Ideally they should face south at a pitched angle of between 30° and 50° from the horizontal to give the best overall annual performance. Installations facing anywhere to the south of due east and due west are feasible, although outputs will be reduced. Installation is not recommended on roofs facing north.

Get paid while you save!

You can get paid for the electricity you generate with your solar PV array. The scheme guarantees a minimum payment for all electricity generated by the system (generation tariff), as well as an additional payment for the electricity exported to the grid (export tariff).

Micro Combined Heat & Power (mCHP)

Replace your existing central heating boiler with an environmentally friendly version and also gain the benefits of generating your own electricity. The mCHP is an extremely efficient central heating boiler that also produces electricity. Typical installation costs around £8500. This product qualifies for the FiT and RHIpayments. mCHP offers a practical alternative to other forms of renewable energy sources.

Why choose a mCHP?

  • mCHP does not rely on a building's orientation
  • Weather conditions do not impede electricity generation
  • Electricity can be produced at peak electrical demand times
  • No planning permission required
  • Reduces carbon emissions
  • Can be installed in place of existing boiler

Is a mCHP right for me?

mCHP systems are most cost effective in houses with large heat demands that cannot be reduced by other means or for older building which have a higher than normal heat load. The excess heat from generating electricity is used to provide central heating and hot water. It can be used on open vented and sealed systems.

Ground Source and Air Source

Ground source energy comes from pipework, running through the ground which absorbs heat that is transferred to your heating system. Typical installation costs around £17000. Air source systems utilise the air to warm your heating system and typically cost around £8000.

Ground Source Systems

A loop is buried in a trench or bore hole. Between 100-200 metres is required and if land space is limited it can be spread over several bore holes which together would total 100-200 metres. This can therefore be expensive to install.


The land where the ground source is installed cannot be developed upon as this will inhibit the capacity of the ground source. Therefore careful consideration must be taken regarding installation location. Ground Source Systems have a lifespan of around 40 years.

Air Source Systems

Heat pumps work on the principle of removing the smallest amount of heat from the air or ground and then by compressing it to produce a higher heat output. This output is normally enough to heat your home. Heat pumps work efficiently on temperatures as low as –5oC. Both systems require electricity to function with a ratio of 3 to 1 (heat produced by electricity). In other words they are 300% efficient. They have an estimated lifespan of 20 years. A second heat source may be required during very cold conditions.