back of a spreadsheet; back of the net

I do not disagree with your points, but fossil fuels just for electricity generation, never mind their other uses, will continue to be highly relevant in much of the developing world for a long time, simply because the cost of replacement (not just in hardware and software, but in the organisational and administrative capacity needed) is too high for many governments. Economies to which selling fossil fuels (oil, natural gas, coal) contribute significantly will also not just be stopping overnight. Nuclear power is going to remain an option for a while as well and should be counted as part of a possible viable renewables. China is the leader in that technology now, precisely because of emissions concerns.