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Power satellites may offer a reasonable cost solution to the carbon dioxide build up in the atmosphere linked to global warming. Cost, both for the power and for the startup are major considerations. Cost of power must undercut coal in third world countries to meet the goal of displacing fossil fuel. This leads to a required 100 to one transport cost reduction. We examine methods to reduce the cost...
Electricity is a commodity. The primary way to gain market share with commodities is lower prices. Base load electrical energy from coal costs about 4 cents per kWh. Three cent per kWh power from space would undercut coal by 25%. To reach that cost requires a capital investment of no more than $2400/kW ($12 B for a 5 GWe power satellite). This capital investment requires a transport cost to GEO of...
A vigorous economy needs cheap energy. A sustainable economy, if it is to grow and prosper, needs more: energy that is cheap, clean and abundant. Renewable electricity at 1–2 cents per kWh would enable synthetic oil at $30–50 per bbl. Three cents per kWh would displace coal. Current and projected renewable energy sources are several times too expensive. Space-based solar energy from power satellites...
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