Houses heated entirely by solar energy all year round

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www.jenni.ch

Houses heated entirely

by solar energy all year round

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Jenni Energietechnik Inc.

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Jenni Energietechnik AG www.jenni.ch

First advertisement for a

fully solar-heated house

in the magazine of the

Swiss Solar Association,

1981

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stst

_European

_{100% solar}

_house

_{in Oberburg}

(Switzerland), 1989

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1st _{European 100% solar house in Oberburg (Switzerland), 1989}

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Temperature in the seasonal hot water tank

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Hundreds

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Follow-up project in Regensburg, Germany

Heat storage: Temperature in the tank is high enough

to provide heat energy during the winter

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Follow-up project in Kappelrodeck, Germany

Heat storage: Temperature in the tank is high enough

to provide heat energy during the winter

Temperature sensors 20 30 40 50 60 70 80 90 100 04.10. 06 14.10. 06 24.10. 06 03.11. 06 13.11. 06 23.11. 06 03.12 .06 13.12. 06 23.12 .06 02.01. 07 12.01. 07 22.01. 07 01.02. 07 25°C 8 7 6 5 4 3 2 1

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Construction of single-family houses:

Heating (almost) exclusively with solar energy! = Independence from external energy!

Solar heating fraction 50 – 100%

Additional costs compared to an ordinary house: ≥ EUR 30`000. –

• 40 – 50 m2 _{solar heater collectors} • Roof pitch 40° – 65°

• Orientation south

• Hot water tank 10 – 30 m3

Height 4 – 6 m Diameter 2 – 3 m

• Efficient heat insulation of the building

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From an ordinary house…

Passive

Passive sunsun useuse

Energy Energy demand demand ordinary ordinary house house Energy

Energy demanddemand solar

solar househouse

Ventilation Ventilation wi th wi th heat heat recovery recovery Energ y Energ y demand demand low low energy energy house house

…to a low energy

solar-heated house

Heat Heat insulation insulation Solar

Solar systemsystemforforhot hot water

waterand and heatingheating Remaining

energy demand

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Jenni Energietechnik AG www.jenni.ch Boiler Cold water Hot water VH PH Collectors V1 P1 P4 V4 Apartment heating Heater (wood, pellets, heat pump, oil, natural gas, etc.)

Swiss Solartank

Jenni Solar System

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Solar power center with:

- Seasonal hot water tank (9400 l)

with integrated hot water boiler

and heat exchanger

- Heat insulation

- Control unit

- Fittings

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Source

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Foliensatz Solaranlagen

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Vision of an entirely solar-heated

apartment house, 1985

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1st _{100% solar-heated apartment house}

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Ground plan

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Functional schematic Jenni Solar System

1st _{100% solar-heated apartment house with a seasonal heat}

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Transport of the storage tank

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1st _{100% solar-heated apartment house}

Transporting the tank

from the factory to the

building site

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Final

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Installing the collectors

(276 m

2

₎

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Completion

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Powerstation B, Bennau (Switzerland)

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2 x Houses, each

• 6-7 apartments

• 45 m2_collectors

• 14 m³ storage tank

• heat pump 25 kw

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2 x Houses, each

• 6-7 apartments

• 45 m2_collectors

• 14 m³ storage tank

• heat pump 25 kw

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Source: www.5architekten.ch

Apartment house National low-energy standard

• 7 apartements

• 64m2_collectors

•21m³ storage tank

•Pellets heating system

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2 x apartment house, each

•700 m2_{net dwelling area}

•132 m2_collectors

•77 m³ storage tank

•district heating (100 kw wood chips)

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Beispiel eines Nachfolgeprojekts

Mehrfamilienhaus in Eiken (Aargau)

Apartment house national low-energy standard

•28 apartments

•140 m2_collectors

•55 m³ storage tank

•heat pump

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Beispiel eines Nachfolgeprojekts

Mehrfamilienhaus in Eiken (Aargau)

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Jenni Energietechnik AG

Newly buildt production hall for solar

storage tanks

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Investment example of a 100% solar

heated apartment house, 8 housing units

Costs of construction apartment house incl. solar heating system, excl. parcel of land

Cost estimation: ca. CHF 3.3 Mio. excl. VAT

Conventional heat pump (air-water): ca. CHF 40`000.— Solar heating system

storage tank 110 m³ &180 m2 _collectors: _ca. _{CHF 250`000.—} net additional costs solar heating: CHF 210`000.—

ca. 6% of the building / per apartment: CHF 26`000.—

Not included:

Heat distribustion → either way Place requirement storage tank Roof covering (south)

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…therefore our declaration of

independence with solar thermal heating

systems!

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