Your argument that GD2 will be worse than GD1 seems to be based mostly on the peak oil theory - although personally I don't see much if any connection between peak oil and anything happening in the economy recently (last 10 years) or in the near future (next 10 years). Longer term, I don't think peak oil is a big deal at all, just another boogie man of doom & gloomers. We have at least a 100 year supply of coal in the US even taking into account population growth.
Actually my argument about peak oil only addresses the regeneration phase of Generational Dynamics, not what is presently occurring.
A crash would happen sans "Peak Oil".
Peak Oil becomes an issue when we recover and try to restart our progress and growth model of economics, it may be the rate limiting factor.
Even then I am no claiming we are going back to the dark ages either.
I am not a Doomer, though I may be a Gloomer, it's not the end of the human race, but life may be a lot harder.
As for the alternatives you mention:
1) Coal - the often repeated 100 year supply has two major faults;at our current rate of coal consumption (which supplies about 45-48% of electric power generation) we have an estimated coal supply of 100 years, if we transfer transportation into the mix the number declines to something like 10 to 20 years.
This all depends on estimates of reserves which are estimates.
Strip mining is not popular either.
Lastly high quality (in terms of BTU's / unit volume) are long gone. We have brown coal mostly now.
2) Clean Coal MAY help but as of yet it's an unproven concept not commercially in use anywhere. Coal has a number of pollution related problems, both Nitrous and sulfur based.
BTW I am not a believer in Global Warming theory, the solar "sun spot cycle" magnetic effects on lower atmospheric cloud production is a much better fit
with the data than some super complex atmospheric fluid dynamics model quoted by GW theory.
No doubt we will still use coal because we don't really have much choice.
3) Electrification will no doubt play some role in the future, but has it's limitations. At any rate natural gas and coal presently produce most of the electricity
in the US, renewable's and nuclear about 5%.
4) Solar; the best solar cells have maybe 20% efficiency, that may improve to 40%, still only works in sunshine (and mostly) daytime.
5) Hydrogen is not a source of energy, it is a carrier (here on earth,apart from stars)
6) Many of the solutions being touted in popular literature is poorly thought out wishful thinking.
I have been in various phases of engineering most of my life, and we still have vacuum tube technology in the US, in power switching,
also we have generators made by George Westinghouse in service, made in early last century.
The internal combustion engine dates back over a 100 years, we have only improved it.
7)Tar sands and related projects have been on the books for almost 50 years (a pilot program dates back more) but wouldn't be economical for oil prices bellow $75/bbl. These are still estimated to be more than 25 years away from commercial viability.
8) Transportation fuel is a problem now and will get a lot worse, especially if due to lack of funding we cancel or delay energy projects (I design power and controls systems which produce energy related products) now already on the books.
9) It always takes longer than people expect to convert major parts of the economy, computers are scalable and a poor example of how long it takes.
Cars have been around over 100 years, they have been indispensable for 50 or 60.
We live in a dispersed form of living, transportation is required (except 5% who live in special areas like Manhattan etc.).
10) Wind, unless we find a way to harness our politicians will produce 1%.