Off-grid fast charging settlements

Being able to reach all the areas with no electricity is most important for the change to electric cars and trucks in Africa. As shown before, a high-voltage grid is far too expensive. It makes absolutely no sense to transfer the power of a photovoltaic over some hundred kilometers when a photovoltaic there can do the job also without this grid. There are even more advantages: DC direct by a battery-powered fast chargers are cheaper and more efficient than AC-powered fast chargers. It can start small, somewhere in a village, with a single GEMINI house with a big PV carport and 100 kW DC charging. This can expand to several houses and a generator to also provide service in very dense cloudy weather conditions. Maybe at a group of 16 houses, a power-to-methanol system will be added. And the off-grid fast charging settlement grows, and 20 years later it is the size of a usual European highway station.

Typical 24×365 capability for 80 trucks 300 kWh charging and 300 cars 30 kWh charging.

1 ha double used land
GEMINI 70 house 70 PV modules × 32 = 2,240
GEMINI 60 house 60 PV modules × 32 = 1,920
Central structure 1,008 PV modules × 4 = 4,032
Highway
Street to the fast chargers
460 × 15 = 6,900 modules above fast charging and gastronomy
460 × 5 = 2,300 modules above a connection street behind the village

Total 17,392 modules with 11 MW peak. The inhabitants work in the gastronomy of the fast-charging station and as farmers to utilize the surrounding land.

Download: CORP paper PDF Slides PDF Video 189 MB

Abstract
	To meet the necessary cost optimization targets, we cannot hold the energy problem separate from all other problems: another major problem is housing.

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.

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.

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?
	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