This fund will:
- Support projects exploring Scotland’s potential geothermal energy capacity to provide heat utilising minewater, hot sedimentary aquifers, hot dry and hot wet rocks)
- Encourage the development of proposals for the utilisation of geothermal energy to local community benefit, achieving measurable carbon reductions (without sacrificing proper consideration of the impacts on the local environment), which are sustainable on a long term basis
- Support the development of future viable delivery models, emphasising the requirement for projects to demonstrate commercial viability as part of the energy solution in local developments.
2. Scotland’s geothermal potential
• Study into the potential for deep geothermal energy
in Scotland
Volume 1
http://www.gov.scot/Publications/2013/11/2800
• Identified potential in Scotland’s minewater, hot
sedimentary aquifers, hot dry and hot wet rocks.
3. £250,000 Challenge Fund
• The minimum award is £10,000 and the maximum
£50,000.
• Funding will be delivered as de minimis State aid
funding or under Article 25 of the General Block
Exemption Regulation.
• Applicants must be part of a partnership or
consortium.
• Closing date for applications is 30 April 2015.
• Applicants will be notified in June 2015.
4. Objectives
• Support projects exploring Scotland’s potential geothermal
energy capacity to provide heat utilising minewater, hot
sedimentary aquifers, hot dry and hot wet rocks);
• Encourage the development of proposals for the utilisation of
geothermal energy to local community benefit, achieving
measurable carbon reductions (without sacrificing proper
consideration of the impacts on the local environment), which
are sustainable on a long term basis; and
• Support the development of future viable delivery models,
emphasising the requirement for projects to demonstrate
commercial viability as part of the energy solution in local
developments.
5. Assessment of applications
• Applications need to focus on:
– Technical aspects of locating and analysing geothermal
resource;
– Exploring the potential impact on the environment of
abstracting that resource;
– Engagement with local community; and
– Exploring commercial viability of the identified geothermal
resource.
• Applications will be assessed against the LCITP criteria and
how well they meet the Challenge Fund’s objectives,
minimum scope requirements and applicant criteria.
6. More information
• The data behind the conclusions of the study in
respect of the areas most likely to hold deep
geothermal resources in Scotland is available at
http://www.gov.scot/Publications/2013/11/6383
• Questions about the Challenge Fund?
Phone 0845 607 8787
Or e-mail energy.info@scotent.co.uk
8. catalyst development demonstrator
low carbon and/or
renewable electricity and
heat generation
local energy economies
heat recovery (e.g. district
heating)
energy storage and
distributed energy
systems
hydrogen
demand side
management and active
network management
innovative/local finance
solutions and investor
readiness for low carbon
projects
energy efficiency (e.g.
non domestic building
retrofit)
resource efficiency
materials recycling and
re-use.
Low Carbon Infrastructure
Transition Programme
10. Geothermal Opportunities in Scotland
Uisdean Fraser
Managing Director
Synergie Environ Ltd
0141 263 0020
Uisdean.fraser@synergie-environ.co.uk
David Townsend
Founder & Managing Director
Town Rock Energy
0784 191 0719
david@townrockenergy.com
11. Background – Synergie Environ
• Glasgow based energy and engineering consultancy;
• Experience in the development of a broad range of technologies and
projects including:
AD (whisky, food process and waste sectors);
Biomass;
Low carbon heat from various sources including geothermal,
waste water, process heat;
District Heating and mapping heat demand to source.
• Cover feasibility through planning to construction and commissioning;
• Experience includes large housing, industrial, universities,
manufacturing and process, public sector.
12. Background – Town Rock Energy
• Edinburgh based geothermal energy consultancy;
• Experience in the identification and evaluation of
geothermal resources in Scotland, including:
Flooded mines;
Sedimentary aquifers (HSA’s);
Mines and aquifers for thermal storage.
• Experience designing geothermal district heating systems
for technical and economic feasibility;
• Ideally positioned to become Scotland’s first geothermal
energy company, with export potential.
13. Setting the Scene for Geothermal
• Classification of geothermal resources based on enthalpy:
(Younger, 2014)
14. Setting the Scene for Geothermal
• Classification of geothermal resources from the RHI:
Shallow (Open Source Heat Pump) – less than 500 m depth
RHI = 8.7 p/kWh for the first 1314 hours then 2.6 p/kWh
Deep (Pure Geothermal) – greater than 500 m depth
RHI = 5 p/kWh
• More depth generally more energy resource - but at what cost?
• Geothermal gradient – 22-40 °C/km
• Scotland’s Midland Valley = ~ 30 °C/km
• Drilling cost increases substantially with depth.
• Substantial, sustainable and as yet untapped heat source;
• Abandoned mines present a particular opportunity for open source heat
pump systems.
15. Setting the Scene for Geothermal
• Heat pump technology: exploits year-round temperature
differential between above-ground and below-ground. Heat pumps
can deliver heating or cooling, as required.
Open loop – groundwater is pumped through heat pump or via
heat exchanger. Includes mine-water resources.
Closed loop – heat recovered either by circulating refrigerant
directly or indirectly through heat source.
NOTE: Closed loop heat pump systems are unlikely to be eligible for the
Geothermal Energy Challenge Fund – not innovative enough to
require a government sponsored feasibility.
NOTE: Heat pump systems below 250 kW preferably closed loop
19. Mine-water Heating & Cooling Networks – Heerlen NL
• 2007 completion using 4 abandoned and flooded mines (varying temperature)
• Very energy efficient buildings;
• 33,000m2 residential, 3,800m2 commercial, 11,500m2 healthcare, 4,800m2 public;
• 50% CO2 reduction;
• Supply guaranteed by a polygeneration concept existing of electric heat pumps in
combination with gas fired high-efficiency boilers, and heat/coolth storage;
20. Scotland’s geothermal resources
• Abandoned mines:
o Depths up to 820 m;
o 4,800 km2 total mined area in Scotland;
o Sustainable abstraction at 20-100 litres / sec
o Average water temperature 17 oC but temperatures as low as 10
oC are certainly exploitable
o Indicative energy resource of 2.5 MW/km2 = 12 GW (about 40%
of Scotland’s current peak load!);
o Mine sites often re-developed – i.e. adjacent to heat loads;
o Open loop heat pump
o Correlation of mine-water resources and fuel poverty
21. Scotland’s geothermal resources
• Abandoned mines:
Figure 18 from 2013 BGS
report volume 2 showing:
Depth to base of mine
workings:
Blue – 20-100 m
Green – 100-300 m
Yellow – 300-500 m
Orange – 500-700 m
Red – 700-820 m
22. Scotland’s geothermal resources
• Aquifers (HSA):
o Depths up to 3km – more costly
o Water temperatures 20-90 oC
o Poorly understood / quantified energy resource – application of
Town Rock Energy exploration techniques will improve
understanding
o Limited to sedimentary rocks – significant overlap with areas of
heat demand in the central belt
o Open loop – temperatures greater than 85 oC can be considered
for electricity generation in combination with direct heat use
o None in Scotland yet (Southampton is only UK project)
o Big opportunities for long-term development – exploratory
boreholes required.
23. Scotland’s geothermal resources
• Aquifers (HSA’s)
Figure 25 from BGS report
volume 2: Rock units which
on geological grounds
appear to have good HSA
potential. The Devonian and
Carboniferous lavas of the
Midland Valley do
not have HSA potential, but
locally they may overlie
sedimentary strata
that do.
24. Scotland’s geothermal resources
• Engineered Geothermal Systems (EGS):
o Depths of as much as 6km but can be shallow– even more
costly!
o Water temperatures up to 250oC;
o Poorly understood/quantified energy resource
o Applicable to any rock type – some overlap of hot (HHP)
granites with heat demand in Aberdeenshire;
o Open loop;
o No existing UK projects – proposed Cornwall electricity
generation demonstrator has been unsuccessful in raising
funds for drilling.
25. Scotland’s geothermal resources
• Engineered Geothermal Systems (EGS):
Figure 31 from 2013 BGS report v2: Onshore
parts of Scotland considered most likely to
overlie buried High Heat Potential (HHP)
granite intrusions.
Use of downhole engineering
techniques to develop geothermal
resources from rocks at depth that are
insufficiently permeable to otherwise
support geothermal exploitation
NOTE: Terms Hot Dry/Wet Rock
(HDR/HWR) no longer used – EGS is
the accurate term.
26. EGS Site: Eastgate Boreholes (2004 and 2010)
Contributed by Professor PaulYounger, University of Glasgow
27. Newcastle Science Central
Geothermal Borehole
UK’s deepest-ever city centre borehole (1,821m) -
(1,821m) - drilled 2011 with funding from DECC,
DECC, BGS, and Newcastle Science City
28. Key Issues & Success Factors / Challenges 1
• Heat demand - site viability for large scale district heating;
• Scope of complimentary heat sources to match demand profiles;
• Planning and regulatory constraints;
• Geochemistry of mine-waters important;
• Operational temperature of district heating scheme greatly affects
heat pump COP and economics;
• Environmental constraints on mine-water disposal – re-injection the
most viable option;
• Liability implications of developing abandoned mines;
• Coal Authority is a key stakeholder.
29. Key Issues & Success Factors / Challenges 2
• District heat network (DHN) –
Economies of scale,
Integration with other energy sources,
Marketability?
• Pre-drilling uncertainty in energy resource and overall project ‘bankability’’
• Benefits of a collaborative approach;
• Public sector heat demand best ‘starting block’ for most projects;
• Mine waters particularly attractive:
Resource availability,
On-going pumping costs,
Local heating loads – correlates with areas suffering from fuel poverty
30. Existing scheme – Shettleston (Glasgow)
• Commissioned in 1999;
• Serves 16 residential units over 1,600m2
• Open loop configuration;
• 100m borehole pumps mine water at 12oC directly through heat pump
delivering output at 55oC, then re-injects at shallower depth
• Feeds DHW and space heating (supplemented by immersion)
• Capital grant funding was available
• Cost-competitive over gas
31. Larger-scale opportunities – Glasgow’s East End
Figure 22 from BGS
report volume 2: 3D
model of mined coal
seams (yellow and
blue surfaces), mine
shafts (red
sticks) and mine
roadways (green,
blue and pink),
beneath Glasgow‘s
East End. Viewed in
Virtalis/BGS
GeoVisionary
software.
32. Larger-scale opportunities - Shawfair
• 4,000 homes, 63,200m2 of commercial land, 72,800m2 of
industrial land and 7,800m2 of civic space over 18 years;
• Estimated total peak heat load of 87MW – residential element
at 3-4MW per annum
• Monktonhall mine – potential for delivered heat from
geothermal;
• Adjacent to planned major EfW facility and sewer flows;
• Potential economies of scale and integration of energy sources;
• Keen developer.
33. Larger-scale opportunities - Heartlands
• Former Polkemmet mine, West Lothian;
• 5,000 new homes over 20 years, 140,000m2 business park;
• Adjacent to large areas of local authority housing;
• Estimated total peak heat load of 10MW;
• Potential 34MW heat from geothermal (mine);
• Also close to planned new EfW and sewer flows;
• Potential economies of scale and integration of energy sources;
• Keen developer.
34. Developer concerns & potential barriers
• Carbon reduction and building standards driver;
• Risk aversion to perceived ‘novel’ technology;
• Integration with alternative heat sources integral, but benefits of
geothermal integration not well understood by developers;
• Interest in investment and ongoing ownership;
• Lack of investment to date;
• Marketability to home-builders;
• Acceptability to home owners / occupiers / buyers;
• Difficulty in engaging public sector in collaboration?
35. Further information
GEOTHERMAL RESOURCES IN SCOTLAND - http://www.gov.scot/Publications/2013/11/6383
MINEWATER RESOURCES IN SCOTLAND - http://www.gov.scot/resource/doc/982/0056515.pdf
TECHNOLOGY OVERVIEW -
http://www.researchgate.net/publication/233933748_Mine_water_as_a_resource_space_heating_a
nd_cooling_via_use_of_heat_pumps
EXISTING SCOTTISH SCHEMES -
http://p57313.typo3server.info/fileadmin/MIWR/content/redakteure/data/Presentations/Banks_-
_Existing_Open_Loop_Minewater-Sourced_Heatpump_Schemes_Scotland.pdf
CASE STUDY - http://www.geothermal-energy.org/pdf/IGAstandard/WGC/1995/1-jessop2.pdf
ENTHALPY CLASSIFICATION OF GEOTHERMAL RESOURCES –
YOUNGER, P. 2014. Hydrogeological challenges in a low-carbon economy. Quarterly Journal of
Engineering Geology and Hydrogeology. v.47;p7-27
37. www.scottish-enterprise.com
Meeting the Challenge Fund Objectives
Support feasibility studies
• Explore potential geothermal energy capacity from:
• Mine water
• Hot sedimentary aquifers
• Hot dry and hot wet rocks
• Local community benefit, sustainable on a long term basis
• Development of future viable delivery models
38. www.scottish-enterprise.com
Fit with Project Scope
Clear case for commercial and community benefit
• 1 or more locations
• Assessment of the baseline data
• Description of the preparation of a provisional borehole design
• Risk strategy
• Outline method and technologies to be used
• Assessment of the long term supply and demand
• Potential heat delivery models
• Performance outputs
• Indicative financial models
• Techno economic feasibility and environmental impact
Detailed description of the scope of the proposed feasibility study, reflecting the
Setting, depth, and technological complexities of the location.
39. www.scottish-enterprise.com
Shaping the Consortia
Teams with credible experience and access to deliver project outcomes,
will need at least two of the following:
• Community group,
• Registered charity,
• Community benefit society,
• Community interest company,
• Local authority,
• Registered social landlord,
• Academic institution,
• Heat supplier,
• Third sector business
• Commercial business
40. www.scottish-enterprise.com
Funding and support
1. Notified scheme - General Block
Exemption Regulation (GBER) Article 25
50% support, rising to 70% for micro SMEs
Two forms of funding support
2. De minimis State aid
Capped at €200,000 in a 3 year period
Currently £146,000.
100% intervention rate
Minimum award will be £10,000
and the maximum award will be £50,000
41. www.scottish-enterprise.com
Completing the application
Cover the project scope
• Provide specific detail
• Experience and credibility of the consortium
• Identify the risks and detail mitigation
• Additionality: why do you need support?
• Other funding support
• Detail the costs with supporting evidence
• Demonstrate your points
• Research the examples
• Use the links to the references
