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?

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?

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How would 1400 GW of photovoltaics cope with 900 TWh of net electricity consumption in Germany?

00:37 Wind Energy Inventory and Expansion in Germany
01:11 Solar power alone? Question only made possible by new building standard
01:41 Distribution of world population by latitude
01:53 What is there on other continents at the latitudes of Germany?
02:58 Scenario 1400 GW photovoltaics 4000 GWh batteries 900 TWh consumption and power to gas
06:10 December 2020 lithium iron phosphate batteries for under 100 € / kWh total cost
07:12 Structure of the calculation
08:41 80 GW CCGT power plants are enough, very few load changes
09:45 Extreme load changes every day in current system
11:00 Other design criteria for CCGT power plants - rapid load change becomes unnecessary
11:53 180 GW power to methane is enough
13:27 Clear time separation between CCGT and power to methane deployment
14:37 A very sunny May week - 180 GW of Power to Methane all week
16:27 Evaluation of the result - 245 TWh of methane import needed
18:16 Level of underground methane storage
19:16 Surplus of southern countries for methane import needed
20:11 Expansion needs for underground gas storage
20:35 Hydrogen H2 unsuitable for power industry
23:19 end

Music: Andy Mangele

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?
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
The heat pumps have arrived, Rethinking cities, LiFePo4 arrived, Rethinking energy transition, Summer/Winter, Energy Social Food transition, Ventilation system, Material test,





  Project GEMINI next Generation 2021


The heat pumps have arrived, Rethinking cities, LiFePo4 arrived, Rethinking energy transition, Summer/Winter, Energy Social Food transition, Ventilation system, Material test,

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.


Rethinking cities 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.


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.