Farrar Bamforth Associates Ltd
Sustainable Developments
 & Green Building
Renewable Energy

The continued rise in energy bills and concerns about continuity of supplies mean that the demand for renewable energy has never been higher.

However, prior to the consideration of renewable energy production, energy saving should be fully explored.




1. Introduction
2. The Legislation
3. Design & Specification
4. Airtight Construction &
means of Ventilation
5. Lighting
6. Water Saving
7. Renewable Energy

Heat Pumps

Heat pumps can be considered in properties that cannot access the gas network as they have the potential to reduce running costs compared with oil, LPG, coal or electric.

Heat pumps are not reliant on the weather and can provide continuous heating for a building.

Heat pumps are generally around 300-400% efficient that is to say, for every unit of electricity used to power the pump 3 to 4 units of heat are created.

Ground Source Heat Pumps

Selection of this method is dependant of amount of land available & geology of the site.

If a large amount of land is available then a horizontal loop system can be specified typically laid in trenches approximately 1m deep.

If space is limited then a vertical loop system can be fitted into boreholes between 70 & 100m deep.

These pumps are best used for under floor heating but can be connected to radiators.

Below is a photograph of hot water storage & controls to ground source heat pumps installed in one of our recent developments.


Air Source Heat Pumps

Where space space is at a premium then Air Source Heat Pumps are popular due to the lack of ground works.

Air handling units are located outside a property and circulate a refrigerant around a system providing heat to the system.

These are best used for under floor heating but can be connected to radiators.

Solar PV

Solar electricity, photo voltics or PV. 

These systems capture the sun's energy & convert it into electricity. They work in daylight in any weather and do not need direct sunshine.

Solar Water Heating or Solar Thermal

These systems capture the sun's energy and use it to heat water which can be used immediately or stored in a cylinder for later use. These are best connected to under floor hearing systems.