According to to this, US net electricity generation was about 4 million GWH in 2006, which comes to around 500GW on a 24/7/365 basis. Meanwhile, that 5.25GW of new wind is presumably nameplate capacity, so we can divide it by four for reasons of normal wind conditions, maintenance, runaway rotors spinning into shrapnel, etc. In other words, realistically, it's maybe a whole 1.3GW, or 0.26%, addition to actual generation, and a smaller addition, if any, on hot, humid, still, health-threatening days. Except for hydro, which is noticeable in the table but has little room to grow, the other items can be dismissed as immeasurably small for now.

So next year we get a whole 0.35% if we "try", and less if Congress, this being an election year, focuses mainly on celebrity steroid use. Meanwhile, population is still headed skyward at just under 1%, three times as fast, and I wouldn't be surprised if that fails to guesstimate illegal immigration sufficiently. And said population, on the whole, is slowly but surely becoming ever older and frailer, increasing demand an extra bit, for extra heating, cooling, elevators and other gizmos, nursing facilities, etc.

So the original point probably stands - artificial, politically created electricity shortages seem likely to cause at least regional ructions in the near future. Angry citizens may suddenly attach less importance than they do now to whining about imperceptible effects of coal that only show up when they are teased out by statistical methods that, in the end, are only incomprehensible magic.

For now, politicians are responding to the whining by thumping on evil, wicked "big" business that unjustly tells people they have to get out of bed in the morning. And it's that thumping itself that most whiners are gleefully seeking. However, once the consequences inevitably thump directly on said whiners - as in, for example, "constantly repeated blackouts = no wages = no income" - the glee will continue on for about as long as a snowflake in Florida.

Instead of looking at nameplate capacity we should be looking at actual generation:

- from 2001 to 2007 (the years of the wind "boom") wind power has increased from 7TWh to 32TWh or 25TWh
- total electricity generated grew from 3,736 to 4,160 TWh or by 424TWh so wind power is accountable only for 5.8% of the increase. The additions by the other major sources are as follows:
- natural gas - +254 TWh (60%)
- coal - +116 TWh (27.4%)
- nuclear - +35 TWh (8.3%)
- hydro - +31 TWh (7.3%)

So... in case you just moved to the US and are wondering where the extra electricity you are using came from, you should visit the natural gas or coal power plant serving your area (accounting for 87.4% of it). Not really the local wind farm.

Given the high rates of increase in wind during that period, your analysis is almost meaningless. You are making an arithmetic average of an exponential function.

Assume, say, 8 GW this year, 11 GW in 2009, 15 GW in 2010, 20 GW in 2011 with 35% capacity factor and the numbers from wind look much more significant.

The 1 GW in new nuke from Watts Bar 2 (started in late 1970s) should almost be complete by 2011.

Add the negawatts from conservation and the number can become significant. These are our two best hops before TSHTF.

Best Hopes for a Rush to Wind,

Alan

The problem of switching to wind (something we certainly need to get cracking on BIGTIME) is compounded by the fact that it will likely correspond, at least partially, with a switch the plug in hybrids and (hopefully, if they can be manufactured effectively) electric cars, which will put alot of extra demand on the power grid.

I disagree with this. During world war II we cranked out planes and tanks ... but no passenger automobiles. We're getting knocked back to a 1940 standard of living which means street cars or walking for most, and with the economy the way it is who is going to finance a new PHEV? They won't be prevalent enough for us to want to keep up the roads - could be we'll have police, fire, and ambulance, all moving to high ground clearance platforms to get around decaying roads, and those would be PHEV.

The turbines we need to maintain a civil society will be built the way we went at war goods sixty years ago. The PHEVs? Not a chance ...