Rethinking cities

The Green parliamentary group in the German Bundestag is hosting the online conference “Rethinking Cities” on March 19, 2021. We are participating in the virtual exhibition.

Rethinking cities The Green parliamentary group in the German Bundestag is hosting the online conference “Rethinking Cities” on March 19, 2021. We are participating in the virtual exhibition.

  Download Rethinking cities PDF


A enduring civilization with respect and space for nature requires that housing, energy production and food production be combined in a space-saving way.

The building standard Climate Protection Superiority House is based on the goals of the 1000 sqm society, the electricity demand of the planetary renovation, the requirements to be able to create a high standard of living with little effort to make the society UBI compatible, that means that a UBI that is absurdly low for today's conditions is already sufficient for a good standard of living.

00:29 Salzburg Building Technology Ordinance 2016 PI-value
03:00 CPSH version 2020: highest permissible PI-value -250
04:12 Preview of new requirements CPSH 2022
04:27 On-demand grid feeding of solar power
05:38 Charging electric cars even in the event of grid failure and very cold temperatures
06:20 Food production with Vertical Gardening Aeroponic
07:08 Negative soil sealing factor
08:11 Ventilation system with overpressure defense mode and HEPA filter
09:17 Trigger construction boom
10:04 First project in Unken
10:22 The history of urban development
12:23 The possibilities of CPSH in the energy transition

  Impressions from the conference


I myself was in the workshop “city construction change”. This was limited to how great a lot of CO2 is saved with timber construction. There was not a trace of “rethinking cities”. In the chat there were statements like “Why heat so much, you can put on one more sweater” or "Low tech is better". People also got angry about the fact that more air conditioners are being used because of climate change. So much like the motto “freezing and sweating instead of technology”.

Of course, I also have something against primitive vent air conditioners. These are unhealthy and produce a bad indoor climate. That is why the “GEMINI next Generation” house is also cooled gently via the wall surfaces. Much healthier, better indoor climate and much more efficient.

I experienced ultra-conservative views that have absolutely nothing to do with the requirements of a real energy transition and effective climate protection.

GEMINI next Generation - energy + food + living comfort GEMINI next Generation - energy + food + living comfort
What can housing cost? Where can you build? How much Energy should a house produce? How much building material is needed? GEMINI n.G. is looking for completely new answers to these questions.


Prehistory of the GEMINI next Generation project
It started in autumn 1991 with the GEMINI habitable solar power plant, 2011 with the initiative Solar Building Land and 2018 with GEMINI 66 - we build our house ourselves.


Where can and should GEMINI next Generation be built? Where can and should GEMINI next Generation be built?
Using existing land better and building where conventional houses cannot or are not allowed is an important objective of the GEMINI next Generation project.


How much energy should a house generate? How much energy should a house generate?
As much as possible! Because we need to get out of oil, coal, biofuel, natural gas and uranium. Our houses should contribute as much as possible.


Project GEMINI next Generation 2019 Project GEMINI next Generation 2019
Security, Production hall near Bleiburg, Study Jordan, Flyer for lectures 2020, Cyclist vs commuter, Press release December,



Project GEMINI next Generation 2020 Project GEMINI next Generation 2020
ORF Salzburg, Lecture, , No. thanks!, Food, Electricity Distribution 2.0, RE unleashed, From the factory,



Project GEMINI next Generation 2021
*, *, Rethinking energy transition, Summer/Winter, Energy Social Food transition, *, Material test, 100% solar?, Ventilation system, Heat pump, Disruption, Optic,



Project GEMINI next Generation 2022
Housing counseling, Cheaper than rental apartment,





  Project GEMINI next Generation 2021


*, *, Rethinking energy transition, Summer/Winter, Energy Social Food transition, *, Material test, 100% solar?, Ventilation system, Heat pump, Disruption, Optic,

The heat pumps have arrived The heat pumps have arrived
On December 16, 2020 paid, on January 27 the ship arrived in the Slovenian port of Koper. On February 19, the 3 heat pumps could be picked up at a forwarding agency near Salzburg.


The LiFePo4 batteries have arrived The LiFePo4 batteries have arrived
Ordered in mid-December, arrived on March 19. Low costs for electricity storage are a decisive factor for a real energy transition.


Rethinking the energy transition: The price lie Rethinking the energy transition: The price lie
The demand for “more money for climate protection” is based on the price lie. But we need more motivation, credit and opportunity for a real effective energy transition.


Summer / winter balancing of solar power - seasonal storage Summer / winter balancing of solar power - seasonal storage
Different approaches to summer/winter balancing compared. Seven different locations, from Oslo to Cairo, are examined for seasonal balancing.


Energy change - Food change - Social change Energy change - Food change - Social change
Everyone is only talking about the energy transition for climate protection, but we also need a change in food production and in the social sphere. A solution for all 3 changes.


Ventilation system with heat and moisture recovery Ventilation system with heat and moisture recovery
On May 13, the last of the ordered units is ready for pickup at a forwarding company. The trip was nearly for nothing, because the device only barely fit through the tailgate.


DIY test of thermal insulation of an alternative building material DIY test of thermal insulation of an alternative building material
Construction wood prices are rising dramatically spring 2021 and there are supply problems. But wood prices for other applications, such as this material, are falling slightly.


Would Germany be possible with 100% solar electricity? Would Germany be possible with 100% solar electricity?
The expansion of wind energy is faltering. Is wind energy really indispensable for the energy transition or would it even work with exclusively 100% solar power?


Ventilation systems with heat and moisture recovery Ventilation systems with heat and moisture recovery
Extremely economical and quiet, yet large power reserves to have the best indoor air quality even at a large party. Is of course part of the basic equipment.


More efficiency in heating, cooling and hot water by 3 new patents More efficiency in heating, cooling and hot water by 3 new patents
How can you achieve a higher COP with an air-source heat pump than with a ground-source heat pump, and how can you drastically reduce the amount of electricity needed to heat water?


Disruption at houses Disruption at houses
The market for homes is in as horrifying a state as the electric car market was in 2003: in the year Tesla was founded, the Peugeot 106 was a top electric car.


A visual misunderstanding, A visual misunderstanding,
or how a house shrank to 2/3 of its size. Because of this visual misunderstanding, the video “Disruption in Houses” was published again with improved graphics.