Stanford, UCD Researchers Say 100% Renewable Energy Possible By 2050

thecarchik writes with news of an analysis published in Energy Policy by researchers from Stanford University and the University of California-Davis. "There are no technological or economic barriers to converting the entire world to clean, renewable energy sources, said author Mark Jacobson, a Stanford professor, saying it is only a question of 'whether we have the societal and political will.' During this decade, the two 'fuels of the future' will be electricity and gasoline. Beyond that, we can't project."

Comments

2050 probably won't be good enough..

[intellitech]

Hopefully before crude oil hits $250 a barrel (which will happen sometime around 2035 or later) and the world spins out of control. What's especially interesting is looking at the rising food costs and population growth side-by-side with peak oil graphs.

Re:2050 probably won't be good enough..

[ray-auch]

Renewable != Free

Wind power is renewable, the "fuel" is completely free, but collecting the wind and turning it into usable power is not free. Turbines have to be built, maintained, replaced at end of lfe, land to site them needs to be bought or rented etc. Overall, wind is often more expensive (and has to be subsidised as a result), at least per unit of electricity generated, than oil/gas at current prices.

PR Puff Piece

[jamesl]

This Stanford PR piece has received a lot of "coverage" -- mostly cut and paste.

Here are links to the original papers.
http://www.stanford.edu/group/efmh/jacobson/Articles/I/JDEnPolicyPt1.pdf
http://www.stanford.edu/group/efmh/jacobson/Articles/I/DJEnPolicyPt2.pdf

We estimate that 3,800,000 5 MW wind turbines, 49,000 300 MW concentrated solar plants, 40,000 300 MW solar
PV power plants, 1.7 billion 3 kWrooftop PV systems, 5350 100 MWgeothermal power plants, 270
new 1300 MWhydroelectric power plants, 720,000 0.75 MWwave devices, and 490,000 1 MWtidal
turbines can power a 2030 WWS world that uses electricity and electrolytic hydrogen for all purposes. ...
Barriers to the plan are primarily social and political, not technological or economic.

I'm sure everybody will want to study the papers in detail. And hold on to your checkbooks.

Re:Hydro?

[intellitech]

Reservoir sites usually contain lots of vegetation, and once underwater, the plants naturally decompose and release methane (a greenhouse gas). That's why it's considered "dirty." It's considered destructive because of the effect on migratory patterns, currents, and the overall eco-system surrounding the dam. There have also been reports of increased temperature levels around hydroelectric dams which can have a very harmful effect on surrounding wildlife.

Thermal effects of hydroelectric power stations on the environment

The Environmental Literacy Council - Hydroelectric Power