Solar power plant in space

NASA wants to show the US government new ways out of the climate crisis and future energy shortages. Time to examine the energy balance of such a project.

Ticket 8km per second
The ticket, so to speak, for everything in an Earth orbit is the 8 km per second required for this. No matter how much you can reduce the cost of space travel, there is no way around the energy required to accelerate each piece to 8 km per second. That's almost 9 kWh for one kg. With very lightweight solar cells and all the technology around it, you could perhaps get to 20 watts peak per kg. With 20 watts peak, it should be possible to generate 200 kWh per year in the Earth's orbit.

Energy profitability secured
Chemical rockets can only reach orbit with multi-stage systems. The propulsion system has an efficiency chain from the preparation of the fuel to the efficiency of the rocket engine. The energy requirement increases with the rocket required for transportation. The energy generated in space must be brought back to earth. But even if the energy requirement is 10 times higher and only 70% arrives on earth, we still have a purely energetic return on investment of less than one year.

Maximum launch costs against the terrestrial competition
Against inflation, photovoltaics is becoming cheaper from year to year. With a time horizon until 2020, solar power from sunny desert regions can already be expected to cost around 10 cents per kWh. Energy satellites would then have to compete with this. Let's take a rather large satellite weighing 50 tons and with an output of 1 MW. Let's assume that 8 GWh of this would reach the earth every year. 8 GWh annual yield, that's about the same as a 4 MW wind power plant. Imagine a 2 Enercon 2 MW wind power plant and next to it a rocket that can put a 50-ton satellite into orbit. Which is cheaper? Do we need to discuss this much more? Operators of wind power plants would be very happy with 10 cents/kWh. With a service life of 20 years and 8 GWh per year, the power plant in space can produce 160 GWh. That's just EUR 16 million for the satellite and satellite launch.

Politics - political targets of PEGE
	Nonpolitical, pragmatic, on the other side of ideologies counts in our politic only one target: A long time lasting civilization able to develop further on a stable base.

Philosophy
	Long-term planning and stability have to be the guiding rules of politics. A philosophy based on the mathematic branch of games theory.

Living standard
	What is living standard? How is living standard correctly measured? Is it possible, that our living standard declines drastic, while uncorrect numbers want to make us belive it's like paradise?

Taxes tax politics
	The consequences of the tax politic for humans and environment. The politicians claim to fight for humans and the environment, but the tax politics shows the exact opposit.

Energy politic
	Decades of wrong energy politic. Instead of more living standard with less energy usage, partial the contrary was reached. A result of the wrong tax politic.