Ground Source Heat Pumps
Ground source heat pumps (GSHP) are a highly efficient way of tapping into and harnessing solar energy stored in the ground, rock or water. These elements act like a battery and are charged with solar energy which a GSHP can then collect as soon as there is a heating demand in the building. The ground remains at a constant temperature below the frost line throughout the year and it is this consistent temperature that enables the heat pump to upgrade the heat energy so efficiently through the refrigeration cycle.
Heat Sources for Ground Source Heat Pumps
The building's heat demand and the characteristics of the land around it will determine the most appropriate means of collecting the heat energy for a GSHP. The most common methods for collecting heat are via a 'closed' pipe loop are shown below. 'Open' loop systems use water from an underground or surface body of water, filtered and pumped through a heat exchanger. Further details on these are available:
There are other sources of heat that can be harnessed, including waste water and recovered ventilation air (heat recovery). Although, these sources tend only to be an option on commercial scale and housing development projects.
Benefits of Instaling a Heat Pump
In addition to the advantages of heat pumps in general, installing a ground sourced renewable heating solution provides the following benefits:
- Significant energy savings due to high efficiency
- Long life as a ground source unit can be located indoors
- Quiet operation
- Consistent energy available - primary heating source
- Aesthetically, nothing visible external to the property
Savings, Incentives and Earnings
Renewable Heat Incentive Available NOW!
A ground source heat pump system is dimensioned to meet all of your heating and hot water needs. When used to heat a property, the running costs will be reduced to the amount of electricity required to run the system, which is designed to produce at least 2.5 units of heat for 1 unit of input electricity. This can mean considerable savings to your electricity bill if it is replacing all-electric heating within a property.
The Domestic Renewable Heat Incentive rewards householders investing in heat pumps with regular payments received over 7 years in respect of the amount of heat energy produced by the system.
Organisations considering renewable heating solutions for non-domestic buildings can also benefit from the Commercial Renewable Heat Incentive.
Investment and Funding
Installing a ground source heat pump in a domestic property is likely to require an investment of between £10,000 and £18,000 depending on the size of property and energy demand as well as method of collecting energy from the ground.
The installation is likely to be eligible for the Renewable Heat Incentive. The amount saved on heating bills depends on the particular characteristics of the property and how warm you like to heat your home.
A heat pump is one of the most efficient ways to heat your home and Ecoliving provides an energy calculation showing how much energy can be saved and anticipated running costs. The Renewable Heat Incentive provides an income to add to the comfort and lower running cost benefits. Additionally, Interest Free Loans are available for householders in Scotland.
The Ecoliving Approach
It's our approach to assess the needs of your property and to advise you on the best options for reducing your energy bills. We offer a free, no-obligation site visit where we will collect the information and discuss the options with you. If a ground source heat pump is not appropriate we will tell you why and suggest an alternative renewable heating solution.
As well as designing and installing, we also carry out maintenance on renewable heating systems across the UK. Ecoliving are independent of any one supplier, which allows us to offer a very broad range of heat pumps from a number of manufacturers.
See our Commercial and Domestic Case Studies to see previous instalations.
Find out the most appropriate primary heating source for your new build or existing home now by calling us on 0845 301 3121.