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

Tallinn1006ppttTallinn1006pptt

U m w e l t s c h u t z a m t

Freiburg

London

Paris

Berlin

Rome

U m w e l t s c h u t z a m t

Freiburg im Breisgau210.000 Inhabitants

Area 155 km²

Tallinn1006pptTallinn1006ppt

U m w e l t s c h u t z a m t Tallinn1006ppt

U m w e l t s c h u t z a m t Tallinn1006ppt

U m w e l t s c h u t z a m t

Production of oil world-wide

Explosion of Costs caused by limited Oil ResourcesExplosion of Costs caused by limited Oil Resources

Demand for oil

U m w e l t s c h u t z a m tTallinn1006pptt

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

U m w e l t s c h u t z a m t

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

U m w e l t s c h u t z a m t

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

U m w e l t s c h u t z a m t

U m w e l t s c h u t z a m t

Fraunhofer Institute ISE

research and development

U m w e l t s c h u t z a m t

Citizens´ ParticipationPhotovoltaic on soccer stadium rooftop

Tallinn1006pptTallinn1006ppt

U m w e l t s c h u t z a m t Tallinn1006ppt

Trade Fair Center

700 kWp

U m w e l t s c h u t z a m t

Expressway – Tunnel (365 kWp)

U m w e l t s c h u t z a m t

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

U m w e l t s c h u t z a m t

Solar Factory

Tallinn1006ppt

U m w e l t s c h u t z a m t

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

U m w e l t s c h u t z a m t

Biomass: Wood fired power plant• City quarter: 5,000 inhabitants

• Co-generation plant

U m w e l t s c h u t z a m t

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

U m w e l t s c h u t z a m t

Balance1993 2003

Production ofelectrictiy ca. 3% ca.52%Nuclear power ca. 60% ca.30%CO2-Reduction ca.11%

combined heat and power generation

U m w e l t s c h u t z a m t

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

U m w e l t s c h u t z a m tTallinn1006pptTallinn1006ppt

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.

U m w e l t s c h u t z a m t