Groundwater and energy

BGS Groundwater research

The BGS undertakes research in a number of areas to better understand the potential for using groundwater as a renewable geothermal energy source, as well as investigating the risks to groundwater from energy-related activities in the subsurface. The outcomes of this research are used to inform government policy, develop tools for use in decision making and environmental permitting and to produce data and information that are used by industry and developers.

The interaction of groundwater and energy arises in a variety of ways:

  • it plays a vital role in a number of renewable energy technologies, including deep (high enthalpy) geothermal energy production and shallow (low enthalpy) ground source pumps
  • onshore exploitation of hydrocarbons below freshwater aquifers introduces the risk of groundwater pollution
  • the subsurface can be a repository of materials arising from energy production processes, such as radioactive waste from nuclear power generation and carbon dioxide from combustion-powered electricity generation: these pose a risk to groundwater when carried out onshore

For all of these activities to be carried out effectively and safely, we need a detailed understanding of groundwater systems and how they might be modified, the processes controlling the movement of groundwater and the nature and behaviour of potential pollutants.

Some examples of our research are provided here, but more can be found in our dedicated groundwater website.

Shale gas and groundwater

The emergence of interest in shale gas in the UK brought with it concerns about the risks to groundwater and the wider environment. We initiated a range of projects to address some of these concerns, especially in relation to the protection of groundwater. These have included the development of risk screening and groundwater vulnerability tools in partnership with the Environment Agency and the initiation of environmental monitoring in two of the first areas for shale gas exploration (the Fylde, Lancashire and the Vale of Pickering, North Yorkshire). Although there is a moratorium on any further shale gas development in the UK, monitoring and research is continuing, as several shale gas wells have been drilled and ‘fracked’ and the risk of pollution remains.

Pathways for contamination of water (groundwater and surface water) in the vicinity of shale gas sites include:

  • upward flows of fluids via borehole casings
  • migration of fluids from the shale rocks at depth
  • spillages of chemicals at the surface

We are continuing to monitor water quality and publish the data both in the form of written reports and in near real-time on our website for both the Fylde and the Vale of Pickering.

Groundwater monitoring boreholes Lancashire
Information icon

Groundwater monitoring boreholes and stream sampling sites across the Fylde, Lancashire. © BGS. Contains Ordnance Survey data © Crown Copyright and database rights 2016.

Expand icon

Groundwater and geothermal energy

Geothermal energy in UK can make a contribution to the UK’s ambition of achieving net zero. We have a long history of research in this area, originally focusing on deep, high-enthalpy geothermal energy but more recently on low-enthalpy, shallow geothermal. Examples of projects exploring shallow energy potential include investigating the role of abandoned and flooded coal mines for low-enthalpy energy source at a purpose-designed research site in Glasgow and the potential for using shallow groundwater below Cardiff.

Sub-surface heat flow
Information icon

Subsurface heat flow map of the UK showing areas with the potential for deep geothermal energy exploitation. © BGS. (From Busby, 2010.)

Reference

Busby, J. 2010. Geothermal prospects in the United Kingdom. In: World Geothermal Congress 2010, Bali, Indonesia, 25–29 April 2010.

Get in touch

If you would like further information about any of our research, data products or services please contact our enquiries team

You may also be interested in:

feature_artesian_groundwater_arran_scotland_OR-15-028

Groundwater resources

Groundwater provides invaluable freshwater for public and private supply, agriculture, industry and recreation across the UK and globally.

Show more
Geothermal_feature_Kenya_powerplant

Geothermal energy

The term ‘geothermal energy’ refers to any heat derived from the ground, from depths of a few metres to multiple kilometres beneath the earth surface.

Show more
Groundwater vulnerabliity in Scotlan

Groundwater protection and vulnerability

Groundwater is vulnerable to contamination from a wide range of human activities including agriculture, urbanisation, waste disposal, past and present industry and from pollution incidents.

Show more
Sub-surface heat flow

Groundwater and energy

BGS undertakes research to better understand the potential for using groundwater as a renewable geothermal energy source.

Show more
UKGEOS

UK Geoenergy Observatories

UK Geoenergy Observatories are facilitating a step change in our understanding of geology and our relationship with the underground environment.

Show more

Was this page helpful?

  • How can we make this section better?*

  • Please select a reason*

  • How can we make this section better?*