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U m w e l t s c h u t z a m t
Sustainable energy solutions for cities- case of Freiburg
Dr. Dieter WörnerDirector of the Environmental Protection Agency
City of Freiburg - Germany
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U m w e l t s c h u t z a m t
Freiburg
London
Paris
Berlin
Rome
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Freiburg im Breisgau210.000 Inhabitants
Area 155 km²
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Production of oil world-wide
Explosion of Costs caused by limited Oil ResourcesExplosion of Costs caused by limited Oil Resources
Demand for oil
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Energy Policy in Freiburg
Sustainable Energy SupplyAbandoning of nuclear energy – Worldwide Climate protection
Sustainable Energy SupplyAbandoning of nuclear energy – Worldwide Climate protection
Energy saving
* Thermal insulation* Low energy
construction* Power saving
Energy saving
* Thermal insulation* Low energy
construction* Power saving
RenewableEnergy Sources
*Solar energy*Biomass*Hydro-power*Wind-power*Geothermal energy
RenewableEnergy Sources
*Solar energy*Biomass*Hydro-power*Wind-power*Geothermal energy
Efficient Technologies
* Power-heat coupling(Co-generation)
* Block-type thermalpower stations
* Long- and short-distance energy
Efficient Technologies
* Power-heat coupling(Co-generation)
* Block-type thermalpower stations
* Long- and short-distance energy
Goals
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Freiburg`s Low Energy House (LEH) StandardDemand on LEH:
60 kWh / m2*a
RoofRoof insulationinsulation(20 to 30 cm)(20 to 30 cm)
Wall insulation cellar ceiling insulation
Heat insulationwindows
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Sponsoring Program Thermal Protection2005/2006
Goal: Thermal insulation must be standard at restorations
300.000 € Government subsidies per year
Conveying of insulating roof, wall, window, bonus with solar thermal systems
Report of the first year:
- ca. 90 Applications
- 3,7 Mio € Prompted investments
- ca.1.000 t CO2 Savings
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Fraunhofer Institute ISE
research and development
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Citizens´ ParticipationPhotovoltaic on soccer stadium rooftop
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Trade Fair Center
700 kWp
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Expressway – Tunnel (365 kWp)
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Solar installations in Freiburg
0
1000
2000
3000
4000
5000
6000
7000
89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06
PV (kW)
0
2000
4000
6000
8000
10000
12000
14000
Thermal (m²)
PV solar thermal
EEG EEGamendment
Installed solar capacity in Freiburg - Data: badenova AG & Co. KG, Freiburg
EEG = federal renewable energies support
status 31.05.2006 PV: 7.26 MW, output: 6.5 m kWh p.a.
solar thermal: 11,223 m²data source: badenova power company
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Solar Factory
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Electr. Power from renewable energy
1,6
6,3
0,6
1,1
1,3
1,6
0,0
2,0
4,0
6,0
8,0
10,0
12,0
2005 Szen. 2010(neu)
Szen. 2010 (Nachhalt.)
in P
roze
nt
Geothermie
Windenergie
Photovoltaik
Biomasse
Wasserkraft
0,2
9,3 %
3,7 %
0,3
10 %
Zieltarget
Scenario 2010 (new) Scenario 20102005
%
geothermalenergywindpowerphotovoltaics
biomass
waterpower
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Biomass: Wood fired power plant• City quarter: 5,000 inhabitants
• Co-generation plant
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Feasibility study:• Electricity 4-10 MW; Heat 23-40
MWProblems to solve:• High drilling costs–need
for safety assessment• High invest costs
(50 Mio. Euro)
Schedule:Start of energy production between 2010 and 2012
Geothermal-project
• Start 1998• Cooperation
Rhodia (chemical company) -badenova (energy company)
• Gas-steam-turbine power station • Efficiency > 80%• Power:
244 MW thermal, 60 MW electric
Industrial Combined Heat and Power PlantR h o d i a
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Balance1993 2003
Production ofelectrictiy ca. 3% ca.52%Nuclear power ca. 60% ca.30%CO2-Reduction ca.11%
combined heat and power generation
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Environmental Businesses in the Freiburg Region
Freiburg RegionFreiburg Region
1500 companies500.000.000Gross Demand Product
9400 employees
strength:education, research, science
710 employees
leadership position & image factor:solar industry
700 employees 80 companies
location factors:• policy & citizens‘ commitment• nature & climate• expertise & creativity
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Efficiency and Renewable Energyis the
Feature of successful Post-oil Societies
Efficiency and Renewable Energyis the
Feature of successful Post-oil Societies
Dr. Dieter Wörner, City of Freiburg
Thank you very much for your attention.
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