| Member state | UK |
| Case study | An Integrated Energy Scheme using Geothermal Energy in Southampton |
| Description | In the Wessex basin, Largest commercially developed CHP/district energy scheme in the UK, Started 28 years ago (1986), Built on Joint Co-Operation Agreement with Southampton City Council, |
| Region>City>location | Southampton |
| Installed capacity ( MWth) |
7 MW of CHP, 2MW geothermal well, and 1 MW biomass in 2014 |
| Installed geothermal capacity | 2MW geothermal well |
| DH length (m) |
14 km pipe network |
| Inhabitants connected | Consumers include: Civic Centre 5 Hotels Royal South Hampshire Hospital Offices Complexes Southampton Solent University Olympic Size Swimming & Diving Complex Entire 53 Acre West Quay Shopping Centre Public and Private Sector Housing ……….. and many more |
| Operating Temperature of the DH | Piping heating & potentially cooling to buildings – “Energy Linking” Heat Losses – 1°C per km Reliability ~ 100% (99.98% for Southampton) |
| Production of heating and/or cooling | Supplying heating, cooling and electricity |
| Investement for geothermal heating station |
Capital cost to date £13M |
| Financing (banks, funds, PPP…) |
£5M Energy Sales |
| Cost of the MWh sold | Project built on 20 year energy supply contracts |
| Comparison with fossil energies | •£0.6M p.a. cost savings to consumers.•12,000 tons of CO2 emissions saved p.a. |
| Innovation if any | Commercial arrangements: Works through a Joint Co-operation Agreement between City Council and Cofely The City Council commits to facilitate success of scheme by: •Taking heat where practicable •Promoting scheme to potential users •Supporting development of network •Provision of land for heat station •Treating Cofely as a statutory utility within city Futur proofing: New technologies being actively considered:- •Biomass – woodchip •Energy from Waste •Anaerobic Digestion •Fuel Cells …and several others |
Southampton
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