Introduction






We got our mobility and transport system not by decreasing the costs of horse breeding. The change from horses to cars is an example of a profitability transition everybody knows. Who could afford a horse for their everyday mobility needs today? It's now an expensive lifestyle item. Big cars now pull horse trailers to events. Take my lecture as something like a prediction: “Horses will be only for rich people, and rich people will pull their horses in trailers with their cars to distant events.” Unimaginable in 1900, but it happened. This means cost optimization is far more than reducing the costs of every component of an established system. Cost optimization has to study past and predictable profitability transitions and to evaluate just reducing costs in an existing system vs. an entirely new system. Many imaginations about our future had been created in the past with completely different parameters. Unchecked conclusions from the past endanger our future with unbearable costs.

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  Cost optimization — the key to energy transition and climate protection
Paper written for the CORP.at conference March 22 to 25, 2026, in Vienna. My 2025 participation was a last-minute action, but now I have much time to prepare the paper.

Abstract
To meet the necessary cost optimization targets, we cannot hold the energy problem separate from all other problems: another major problem is housing.
My personal experience with a profitability transition My personal experience with a profitability transition
Birds can fly without knowing all the terms of aerodynamics. I reacted with my design change to an ongoing “profitability transition” without knowing the term at this time.
Energy transition
The long way from random electricity from sun and wind towards 24×365 electricity. Overseen profitability transitions have to be considered as major accidents.
Solar yield and conversion to 24×365 electricity
The wide range of solar yield becomes much wider after the conversion of gross yield to 24×365 electricity. 6 examples from our research of 50 locations.
The GEMINI principle: double usage of land
No better solar power plant, no better housing possible on the same ground is the ultimate target of the GEMINI principle.
Off-grid fast charging settlements Off-grid fast charging settlements
It can start small, somewhere in a village, with a single GEMINI house with a big PV carport and 100 kW DC charging.
Energy-intensive industry
I once developed a scale for off-grid solar possibilities depending on photovoltaic size. But now is to make a big jump upwards on this scale: running, energy-intensive industry.
Agriculture: How many square meters does a human need for his food? Agriculture: How many square meters does a human need for his food?
Mankind started as hunters and gatherers. 12,000 years ago, 500,000 m² to 2,500,000 m² per human. With the agricultural revolution, the land use was reduced by 2 magnitudes.
Conclusion
All parameters are in a constant state of change. We have to check all the parameters and predict the development for the predictable future.
References
Roland Mösl: Energy Optimised Settlements – Enabler for Necessary Civilization Targets, Graz 2025


          Introduction: Many imaginations about our future had been created in the past with completely different parameters. Unchecked conclusions from the past endanger our future with unbearable costs. https://climate.pege.org/2026/introduction.htm