community owned cooperative solar thermal heat generation ... · 4 district heating pipes 1.340 5...

Community Owned Cooperative

Solar Thermal Heat Generation

Dronninglund Town

Denmark

Site Visit September 2015

Finlay MacDonald and David Goldie

1. The Stratego Project

• Denmark event sponsored by Stratego during September 2015

• Attended by various Scottish Councils

• The project aims to aid:

the development of effective heating and cooling plans

and build capacities to deliver Scottish District Heating on

the ground.

Slide 1 Solar Thermal Heat Generation

2. Dronninglund District Heating • District Heating Scheme started in 1959

• Approximately 30 Miles of Pipework

• 1,350 Houses, population 3,300 people

• Annual production of 40,000 Megawatt Hours (MWh)

• Annual turnover of approximately £3.3 Million Pounds

• According to the Danish District Heating law companies are non-profit, and thus cannot yield a profit from selling heat.

• Infrastructure Owned & Operated by the Customers

Slide 2 Solar Thermal Heat Generation

3. Dronninglund District Heating • Current Energy Production Plant: • 4no Combined Heat & Power Gas Engines delivering 3.6 MW of

power and 6.4 MW of Heat

• 1no Emergency Gas Boiler that can deliver 8 MW of Heat

• 1no Bio-Oil Boiler with associated absorption Heat Pump, with a total output of 6 MW

• 1no Bio-Oil Hot Water Boiler producing 10 MW

• New Solar Thermal Plant – Approx. 37,573 m2 of solar panels, producing 27 MW with associated seasonal heat storage of 60,000 M3 of water.

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4.New Thermal Storage Plant

Slide 4

Heat Pump

Winter Gas or Oil Boilers

CHP

Solar Thermal Panels 35 to 40,000M2 generating hot water

60,000 M3 cost effective hot water held in underground Storage Pit

Power Heat to into store

End Users

Combined Heat and Power Plant

Heat

Heat

Hot Water to storage pit

Heat

5. Move from Gas/Oil to Solar Energy

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6. Original Gravel Pit Site

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7. Storage Pit Excavated and Ready for Liner

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8. Scale of the New Pit

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Engineers Laying the

Waterproof Liner

Membrane

9. Filling the Storage Pit

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10. Insulation and Cap Sheet Being Laid

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11. Cap Sheet and Insulation Installed

Slide 11 Solar Thermal Heat Generation

12. Ariel View of the Site

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Solar Storage

Pit

Solar Thermal Panels

Pump Building

13. Funding for Solar Scheme

Investment in Dronninglund Solar Thermal System

(Amount in Thousand Euro)

1 Heat storage, 60.000 M3 (38,7 Euro/m3) 2.400

2 Buildings 2.400

3 Solar Panels, 37.573 M2 6.100

4 District Heating Pipes 1.340

5 Boilerplate and Heatpump 0.920

6 Building Interest and Contingencies 0.800

7 Total investment Hardware 13.960 Euros

8 Consulting engineers 673

9 EUDP (subsidies from Danish Department of Energy) -2.953

10 Community Nett Investment: 11.680 Euros

£9.54 Million Pounds

Solar Thermal Heat Generation Slide 13

14.Solar Thermal: The Benefits

• Power source readily available (Sun)

• Cleaner environment

• Low maintenance

• Low operating costs

• Reducing dependency on Fossil Fuels

• Fuel price is set for 30 years

• Satisfied Customers.

Solar Thermal Heat Generation

Slide 14

15. Happy Site Manager

Solar Thermal Heat Generation

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16. Scottish Councils: % households in fuel poverty

David Goldie Slide 16

0% 10% 20% 30% 40% 50% 60% 70%

City of EdinburghFalkirk

East DunbartonshireWest Dunbartonshire

Aberdeen CityWest LothianRenfrewshire

South LanarkshireMidlothian

ClackmannanshireEast Renfrewshire

East LothianStirling

North LanarkshireGlasgow City

South AyrshireFife

East AyrshirePerth and Kinross

AberdeenshireScottish Borders

North AyrshireMoray

Argyll and ButeDundee City

AngusInverclyde

Dumfries and GallowayShetland Islands

HighlandEilean Siar

Orkney Islands

17. Scottish Councils: % houses off gas network

David Goldie Slide 18

0% 20% 40% 60% 80% 100% 120%

City of EdinburghAberdeen City

West DunbartonshireEast Dunbartonshire

East RenfrewshireDundee City

InverclydeGlasgow CityRenfrewshire

ClackmannanshireNorth Lanarkshire

North AyrshireEast AyrshireWest Lothian

FifeFalkirk

East LothianSouth Ayrshire

South LanarkshireMidlothian

StirlingAngusMoray

Perth and KinrossScottish Borders

Dumfries and GallowayAberdeenshireArgyll and Bute

HighlandEilean Siar

Orkney IslandsShetland Islands

18. Scottish Councils: % houses with central heating

David Goldie Slide 19

84% 86% 88% 90% 92% 94% 96% 98% 100% 102%

ClackmannanshireWest Dunbartonshire

FalkirkMidlothian

North LanarkshireInverclyde

FifeNorth Ayrshire

East AyrshireEast Dunbartonshire

East LothianWest Lothian

StirlingCity of Edinburgh

ScotlandScottish Borders

MoraySouth AyrshireAberdeen City

East RenfrewshireEilean Siar

South LanarkshireAberdeenshire

RenfrewshirePerth and Kinross

Dundee CityGlasgow City

AngusHighland

Dumfries and GallowayArgyll and Bute

Shetland IslandsOrkney Islands

19. Contrasts

• History / culture

• Community not “Utility”

• Not for profit

• No direct public funding

• Local innovation and commitment

• Simple business model

• Not about fuel type / single source

David Goldie Slide 20

Thank You and

Questions?

Solar Thermal Heat Generation Slide 19