ART005

Keeping Alternate Energy In Perspective

Thank you for the pie chart. Nice to see all that info in one place.

There seem to be two concepts that overlap and cause a little confusion when it isn't clear which is being addressed. Balancing energy requirements vs. energy investment opportunities.

I'm not convinced solar PV is economical so I don't follow that industry much. When they get to $1/watt then future build out will be productive. I'm afraid at $5/watt the industry is going backwards as far as adding value to the world. I'm all for subsidized research towards $1/watt but subsidized installation at $5/watt doesn't sit well with me.

Solar heat (hot water, home heating) on the other hand is below $1/watt.

Wind is at or below $1/watt. Current world wind energy output is around 32K equivalent Bbl/day. At an impressive 25% annual increase it is adding additional 8K equivalent bbl/day annually to world energy supply. But the world doesn't even respond to Saudi Arabi offering 200K Bbl/day. I think the ongoing world growth rate of just oil demand is on the order of 1 million Bbl/day/year. For total world energy then, using the pie chart, about 2.5 million equivalent Bbl/day/year increase.

My point is that every little productive contribution is important but as the author suggests, the small parts of the pie can not be improved enough to carry the struggling bigger parts (oil) in the short run. Coal and nuclear are big parts that can be ramped up.

Conservation on the order of 10% would be huge, moving some energy requirements from oil to electric (coal, nuclear) via the transportation sector as suggested is another big low hanging fruit opportunity. Geothermal ground source heat pumps are another productive transfer of energy load from gas/oil to electric.

So bigger growth investment opportunities might be in the fashionable alternative energies but the world's energy balance is going to have to come from higher energy density options with large input supplies (coal, nuclear.) Don't forget that oil as a chemical feedstock is very valuable so burning it all up and then converting to alternative energies isn't an option even it was possible.

The excessivley supportive alternative energy camp needs to realize that while improvements in their camp our valuable, proposing no expansion of coal and nuclear is a death sentance!!