Replace crude oil by photovoltaic
From all methods to produce energy is only with photovoltaic the magnitude reachable necessary to solve the problems of humanity.
At the end of the Szenario war economy are in the year 2030 around 75.000 TWh yearly electric power by photovoltaic.
The world wide electric power production was 2003 15.900 TWh. The living standard increases, should increase, has to increase in the development countries.
Electric power from fossile power plants is history, atomic power plants are also history. GuD gas power plants are adapted for the use of hydrogen and have huge liquid hydrogen tanks. The only solution to fill the winter gap with excess electric power from the summer.
So there have to be in the summer 2.5 kWh used to produce in winter 1 kWh electric power.
Electric power from biomass? No, that's also history. With solar electric power is hydrogen produced, the energy for the chemical processes to produce with the carbon from the biomass methanol or kerosene.
Waterpower delivered 2003 19% of electricity, around 3000 TWh. Even tripled, this would be only 9000 TWh.
2006 had been 73.904 MW wind power plants installed. Evet tenfold, this would be only 1500 TWh
At the end of 2007 hat been 210 atomic power plants with 439 reactors and 372 GW in use. That had been 2006 2660 TWh per year, a comparatively ridiculously small amount of electricity compared to the risk.