Workshop Vienna, 2nd july 08 The „Energy in minds!“ - project in the energy region...

Workshop Vienna, 2nd july 08

The „Energy in minds!“ - project The „Energy in minds!“ - project in the energy region Weiz-Gleisdorfin the energy region Weiz-Gleisdorf


WeiWeizzWeiWeizz

GleisdorfGleisdorfGleisdorfGleisdorf

17 communities17 communities

38 500 inhabitants38 500 inhabitants

Energy region Weiz-GleisdorfEnergy region Weiz-Gleisdorf


Project Partner in AustriaProject Partner in AustriaCoordination of the energy region Weiz-Gleisdorf: W.E.I.Z.

Research organisation: AEE INTECInstitut for sustainable technologies

Utility: Feistritzwerke STEWEAG GmbH


Research/InnovationResearch/Innovation

Information campaignPublic energy day Innovative PV-systemsBio-fuelled co-generationHigh efficient retrofitEstablish wood-pellet

infrastructureDissemination


DemonstrationDemonstration

Innovativ solar thermal systems80 solar-comby-systems in private households (10 – 20m²)

8 large-scale-systems f. resident.buildings or tourism.comp.

Innovative PV-systems 25 PV-Systems in private households with about 3 kWp

Improve district heating system 15 local district heating systems with about 150 kWhth, using

woodchips or pellets

1.000 Energy checks for buildings


DemonstrationDemonstrationHigh efficient retrofit

7000 m² residential-buildings

2500 m² public-buildings

1000 m² office-buildings

New low-energy buildings

4500 m² residential-buildings with passivhouse-standard

Communal energy management

Establish wood-pellet infrastructure

110 pellet boilers with 10 to 30 kW

Establish bio-fuel infrastructure


DEM: for example: Plant oil-infrastructureDEM: for example: Plant oil-infrastructure

Two new fuel stations

Training course for garage owners and mechanics

Installation of an show room

Adaption of 30 vehicles to use plant oil


Solar thermal systemsSolar thermal systemsSince June 2005 we installed 1331,9m² = 67 solar plants (one family houses)


Pellet burnersPellet burnersSince June 2005 we installed 886 kW= 56 pellet burners (one family houses)


New buildings New buildings (one family (one family houses)houses)

Since June 2005 we supported 2214 m² of new buildings.


Retrofits - one family housesRetrofits - one family houses

Energy characteristic: 258 kWh/m²aEnergy characteristic: 58 kWh/m²a

Since June 2005 we supported 2327m² of retrofits.


Retrofits - one family housesRetrofits - one family housesMeasurements

Roof: 40 cm heat insulationOuter walls: 12 cm insulationWindows: U-value 1,1 W/m²KHeating system: solar thermal system 20m², wood boiler, storage tank 1000l


Retrofits - one family housesRetrofits - one family housesEnergy characteristic: 205 kWh/m²aEnergy characteristic: 54 kWh/m²a


PV-plantsPV-plants

PV-power: 3.040 Wp

16m² therm. Collector

12 kWh/m² heating

PV-Power: 4.700 Wp

Low energy-buildingin massive construction

< 12 kWh/m² heating


District heating systemsDistrict heating systems- 7 plants finished – 820 kWth


Communal energy managementCommunal energy managementStreetlightsStreetlights

- in 4 communities, installationion of energy saving streetlights

- using new lamp-technology, reduction of operatingvoltage


Online Energy-consultingOnline Energy-consulting


Bio-fuel „plant oil“Bio-fuel „plant oil“- 8 vehicles adaped to bio fuel and in operation- 2 filling stations will be finished in July 2008

- 1 trasportable show-element to present the technology in the region


Bio-fuel co-generation plantsBio-fuel co-generation plants1 plant running, 2 plants under construction

- Electric Power: 8 kW – grid-connected

- Thermal output: 18 kW – for heating office-building

- Overall efficiency: aprox. 91%


Monitoring for Energy in Monitoring for Energy in minds!° - projectsminds!° - projects


Buildings monitoring


u- values before and after the retrofit

before after

· floor ceiling 0,49 W/m²K 0,15 W/m²K· outer walls 0,96 W/m²K 0,30 W/m²K· outer wall (not heated area) 2,85 W/m²K 0,44 W/m²K· outer wall (ground) 1,95 W/m²K 0,43 W/m²K· celler ceiling 0,56 W/m²K 0,30 W/m²K· celler floor 0,72 W/m²K 0,29 W/m²K· floor and celler ceiling (external air 1,07 W/m²K 0,29 W/m²K· windows 2,80 W/m²K 1,14 W/m²K

Buildings


BuildingsEnergy demand:

Before: 157 kWh/m²a

After: 24 kWh/m²a

Energy costs:

Before: 30.450 €/year

After: 4.190 €/year


Solar Thermal System and Pellet Boiler

– Family Hausmann, Gleisdorf

19.5 m²

1,250 litres storage tank

Domestic hot water is generated by a flat plate heat exchanger

10 kW pellet boiler for auxiliary heating


Monitoring Solar Thermal System and Pellet Boiler

– Family Hausmann, Gleisdorf

House energy demand of 43 kWh/m²a for 150 m² living area

The 19.5 m² solar thermal collector area was architectural integrated in the building’s south facade


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Solar Thermal System and pellet boiler

– Family Wolf, Gleisdorf

15 m²

1,000 litres storage tank

10 kW pellet boiler for

auxiliary heating


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Monitoring PV plants


Monitoring PV-Plants – web-Monitoring PV-Plants – web-basedbased

Workshop Vienna, 2nd july 08 The „Energy in minds!“ - project in the energy region...

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