SOLANOVA - Symbiosis for Sustainability Human Needs Resource Efficiency Solar Supply Andreas...

SOLANOVA - SOLANOVA - Symbiosis for SustainabilitySymbiosis for Sustainability Human NeedsHuman Needs Resource EfficiencyResource Efficiency Solar SupplySolar Supply

Andreas Hermelink | Coordinator SOLANOVA, Germany

ETAP Forum, Brussels, June 11, 2007

CO2-Emissions – Scenarios

0

50

100

150

200

250

1990 2000 2010 2020 2030 2040 2050

IEA BAU WorldIEA ALT World

EU Target World

ETAP Forum, Brussels, June 11, 2007

Carbon Reduction Demand

• EU 25, today: ca. 9.5 t/CO2 per capita• World, 2050 (-50%): ca. 1.2 t/CO2 per capita• This would mean a reduction in EU25 of 87%!

ETAP Forum, Brussels, June 11, 2007

Video message: Andris Piebalgs

ETAP Forum, Brussels, June 11, 2007

Green Buildings?

GREENGREEN

ENOUGH

Sufficient Insufficient

ETAP Forum, Brussels, June 11, 2007

Symbiosis

SolarEnergy

(Building, Quarter, Town)

Efficiency(buildings & dwellers,

supply systems)

ETAP Forum, Brussels, June 11, 2007

SOLANOVA – Factor 10 Philosophy

0

50

100

150

200

250

300

Before SOLANOVA

kWh

/m2a

Hot water

Space heat -79%

ETAP Forum, Brussels, June 11, 2007

SOLANOVA - Much More Solar …

0

50

100

150

200

250

300

Before SOLANOVA

kWh

/m2a

Renewable Energy

Fossile Energy

26%Share of

Renewables

ETAP Forum, Brussels, June 11, 2007

SOLANOVA – … Much Less Fossile

0

50

100

150

200

250

300

Before SOLANOVA

kWh

/m2a

Renewable Energy

Fossile Energy

-84%

ETAP Forum, Brussels, June 11, 2007

Measured Space Heat Consumption

20

39

220

0

50

100

150

200

250

Average before retrofit Heating season 2005/06 Heating season 2006/07

kWh/m2a

-82% -91%

ETAP Forum, Brussels, June 11, 2007

From European Worst Practice ….

ETAP Forum, Brussels, June 11, 2007

… to European Best Practice!

ETAP Forum, Brussels, June 11, 2007

Measures for European Best Practice

• Decentral ventilation units with 82% real heat recovery, one ventilation unit per flat

• Ca. 75 m² solar thermal area as canopy • Easy heating system solution with radiators• 10 cm insulation of cellar ceiling• Roof insulation: 30 cm with green roof • Wall insulation: 16 cm polystyrene (additional)• Flats’ windows: S and W: 2+1 glazing,

shading, UW = 1.1; N: 2-glazing, UW = 1.4

• Groundfloor windows: U-value: 1.4• TOTAL Cost: 240 EUR/m² + VAT

ETAP Forum, Brussels, June 11, 2007

Satisfaction with Temperature

ETAP Forum, Brussels, June 11, 2007

Before

Dec. 2006

very dissatisfieddissatisfied

neutralsatisfied

very satisfied

10,00

20,00

30,00

40,00

50,00

Satisfaction with Space Heat Cost

[%]

ETAP Forum, Brussels, June 11, 2007

Satisfaction with Flat

Before

Dec. 2006

[%]

very dissatisfieddissatisfied

neutralsatisfied

very satisfied

10,00

20,00

30,00

40,00

50,00

ETAP Forum, Brussels, June 11, 2007

Replication Potential for SOLANOVA

ETAP Forum, Brussels, June 11, 2007

Replication Potential for SOLANOVA

ETAP Forum, Brussels, June 11, 2007

Replication Potential for SOLANOVA

ETAP Forum, Brussels, June 11, 2007

Replication Potential for SOLANOVA

100 Mio people in Eastern Europe only!

ETAP Forum, Brussels, June 11, 2007

Conclusion

GermanyAndreas Hermelink

hermelink@solanova.org

• We have the obligation to master a triple challenge which is far beyond the usual marginal improvements.

• Let’s•satisfy occupants’ needs•within environmental limits•at reasonable cost!

• SOLANOVA proves: It is possible!

ETAP Forum, Brussels, June 11, 2007Andreas Hermelink, University of Kassel, CESRKurt-Wolters-Str. 3, D-34125 KasselHermelink@solanova.euTel. +49 561 804 6216 / Fax +49 561 804 6213

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