Houses heated entirely by solar energy all year round Jenni Energietechnik Inc. www.jenni.ch
Jenni Energietechnik Inc. Oberburg (Switzerland) 2
First advertisement for a fully solar-heated house in the magazine of the Swiss Solar Association, 1981 Jenni Energietechnik AG www.jenni.ch
1 st European 100% solar house in Oberburg (Switzerland), 1989 Jenni Energietechnik AG www.jenni.ch
1 st European 100% solar house in Oberburg (Switzerland), 1989 Jenni Energietechnik AG www.jenni.ch
1 st European 100% solar house in Oberburg (Switzerland), 1989 Jenni Energietechnik AG www.jenni.ch
1 st European 100% solar house in Oberburg (Switzerland), 1989 Winter, January 1990
1 st European 100% solar house in Oberburg (Switzerland), 1989 Temperature in the seasonal hot water tank
Follow-up projects in Landiswil, Switzerland Jenni Energietechnik AG www.jenni.ch
Follow-up project in Heimiswil, Switzerland Jenni Energietechnik AG www.jenni.ch
Hundreds of follow-up projects in Germany Jenni Energietechnik AG www.jenni.ch
Follow-up project in Regensburg, Germany Heat storage: Temperature in the tank is high enough to provide heat energy during the winter Jenni Energietechnik AG www.jenni.ch
Follow-up project in Kappelrodeck, Germany Heat storage: Temperature in the tank is high enough to provide heat energy during the winter 100 Temperature sensors 90 80 70 60 50 40 8 7 6 5 4 3 2 1 30 25 C 20 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 Jenni Energietechnik AG www.jenni.ch
Construction of single-family houses: Heating (almost) exclusively with solar energy! = Independence from external energy! Solar heating fraction 50 100% 40 50 m 2 solar heater collectors Roof pitch 40 65 Orientation south Hot water tank 10 30 m 3 Height 4 6 m Diameter 2 3 m Efficient heat insulation of the building Optimal windows Additional costs compared to an ordinary house: EUR 30`000. Jenni Energietechnik AG www.jenni.ch
From an ordinary house Solar system for hot water and heating Energy demand solar house Remaining energy demand Passive sun use Energy demand ordinary house Ventilation with heat recovery Energy demand low energy house Heat insulation to a low energy solar-heated house Jenni Energietechnik AG www.jenni.ch
Solar system with high solar fraction Collectors Jenni Solar System Hot water Boiler V1 P1 V4 P4 PH Heater (wood, pellets, heat pump, oil, natural gas, etc.) VH Apartment heating Cold water Swiss Solartank Jenni Energietechnik AG www.jenni.ch
Solar power center with: - Seasonal hot water tank (9400 l) with integrated hot water boiler and heat exchanger -Heat insulation - Control unit -Fittings for EUR 15`000. Jenni Energietechnik AG www.jenni.ch
Water heating stoves as a central heating 18
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Source: : Ernst Schweizer AG
Jenni Energietechnik AG Quelle: Ingenieurbüro ro Spescha, www.jenni.ch, Schwyz
Foliensatz Solaranlagen Source: Sonnenhaus-Institut 25
Vision of an entirely solar-heated apartment house, 1985 Jenni Energietechnik AG www.jenni.ch
1 st 100% solar-heated apartment house Side plan Jenni Energietechnik AG www.jenni.ch
1 st 100% solar-heated apartment house Ground plan Jenni Energietechnik AG www.jenni.ch
1 st 100% solar-heated apartment house with a seasonal heat accumulator and without auxiliary heating (Oberburg / Switzerland) Functional schematic Jenni Solar System Jenni Energietechnik AG www.jenni.ch
Temperature profile 01.12.2009-31.07.2011
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Transport of the storage tank (205`000 l, 17 m height, 4 m diameter) 32
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1 st 100% solar-heated apartment house Transporting the tank from the factory to the building site Jenni Energietechnik AG www.jenni.ch
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Final position of the solar water tank Jenni Energietechnik AG www.jenni.ch
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1 st 100% solar-heated apartment house Installing the collectors (276 m 2 ) Jenni Energietechnik AG www.jenni.ch
Completion 2007 Jenni Energietechnik AG www.jenni.ch
Follow-up projects Jenni Energietechnik AG www.jenni.ch
Powerstation B, Bennau (Switzerland) Source: www.kraftwerk-b.ch, Grab Architekten
Apartment house in Altendorf (Switzerland) 2 x Houses, each 6-7 apartments 45 m 2 collectors 14 m³ storage tank heat pump 25 kw
Apartment house in Altendorf (Switzerland) 2 x Houses, each 6-7 apartments 45 m 2 collectors 14 m³ storage tank heat pump 25 kw
Apartment house in Spreitenbach (Switzerland) Source: www.5architekten.ch Apartment house National low-energy standard 7 apartements 64m 2 collectors 21m³ storage tank Pellets heating system
2 x apartment house, each 700 m 2 net dwelling area 132 m 2 collectors 77 m³ storage tank district heating (100 kw wood chips) 2 apartment house in Laufen (Germany)
Apartment house national low-energy standard Beispiel eines 28 apartments Nachfolgeprojekts 140 m 2 collectors 55 m³ storage tank heat pump Mehrfamilienhaus in Eiken (Aargau) Apartment house in Eiken (Switzerland)
Beispiel eines Nachfolgeprojekts Apartment house in Eiken (Switzerland) Mehrfamilienhaus in Eiken (Aargau)
Solarspeicher nach DE-Chemnitz 50
future prospects Jenni Energietechnik AG www.jenni.ch
Newly buildt production hall for solar storage tanks Jenni Energietechnik AG Jenni Energietechnik AG 52
Solarspeicher nach DE-Chemnitz 53
Further 100% solar heated apartment houses
Further 100% solar heated apartment houses
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): Solar heating system storage tank 110 m³ &180 m 2 collectors: ca. CHF 40`000. 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) 57
therefore our declaration of independence with solar thermal heating systems!
www.jenni.ch Jenni Energietechnik AG www.jenni.ch
Houses heated entirely by solar energy - the best solution not to be cold in the future! Jenni Energietechnik AG www.jenni.ch
Thank you for your time! Renewable Energy: Sun, Heat recover y, Municipal heating Jenni Energietechnik AG CH-3414 Oberburg (Switzerland ) Phone 0041 34 420 30 00 info@jenni.ch / www.jenni.ch Jenni Energietechnik AG Josef Jenni www.jenni.ch