For an East Coast liberal hoping to make it to Denver for next month's Democratic National Convention, air or car travel can create quite the carbon-foot printed nightmare. While the DNCC has attempted to help limit the number of guilty consciences by offering to sell delegates carbon credits alleged to help offset damage to mother earth, it turns out that a primary source of these credits is a sham. ...an eastern Colorado wind turbine "tapped for the [DNC's] carbon-offset problem has one problem: It doesn't generate any electricity."

Reserve generating capacity, normally 10 percent to 15 percent, could be down to 1 percent or zero percent in some places, and Yale professor Charles Perrow, who follows power-supply shortfalls, says "I'm prepared to see many more blackouts occurring. . . . it's really going to be a freight train running into disaster." This is not an encouraging scenario, to say the least. ...Here is one decisive piece of realism: Coal supplies more than 50 percent of U.S. electricity and more than 80 percent of Colorado's electricity. Due to its abundance and price stability, coal will - and must - continue to be a major source in meeting U.S. and world electricity demand for decades to come. While proponents of alternative energy are often adamant in their rejection of coal as a continued long-term energy resource, reality dictates otherwise. To dismiss this reality is simply dangerous - dangerous to long-term energy supply and price stability.

So why is this higher mandate likely to hike your bills? Because when government creates an artificial market by fiat, shortages almost always follow (of turbines for wind power, for example), thus boosting the mandate’s cost. For that matter, if all forms of renewable energy could compete on their own, they wouldn’t need a mandate in the first place.

When the country thinks about its energy problems, it often focuses on our dependence on foreign oil and the recent high prices of gasoline. Petroleum provides 40 percent of our energy and is particularly vulnerable to geopolitical swings in unstable regions of the world. But utility executives worry that Americans are failing to appreciate another aspect of the energy picture, namely that the power plants using coal, natural gas and nuclear power to produce electricity may soon not meet our growing needs. "My biggest fear is that we are running out of generation," said Michael G. Morris, chairman and chief executive of American Electric Power, with 5 million customers in 11 states. "That is an issue that the average person doesn't know a thing about. When we tell corporate America, they say, 'What do you mean you're running out of power?"' The executives' concern is echoed by the North American Electric Reliability Council, which last week said in its annual report that in two to three years, the margin between power supply and demand will drop below levels necessary for reliability in Texas, the Northeast and the Midwest. Other parts of the country could reach that point in the next decade.

For years Vail Resorts has claimed it would actually build wind turbines on its mountains. It appears that was all marketing hyperbole, or as environmentalists like to call it, "greenwash." I can only imagine that the recent wind power purchases of renewable energy certificates by Vail Resorts is their attempt to buy their way out of past environmental marketing claims.

To be sure, we are at a crossroads in energy and need all kinds of ideas to supply the enormous demand that is now filled by fossil fuels; however, I’m not ready to surrender the last open prairies to this version of energy independence.

Xcel says wind power will mostly supply intermittent and peak power - energy demands that fluctuate day to day or even hour to hour. Unfortunately, that means it still must rely on coal, the most polluting fossil fuel, supplemented by natural gas, the most expensive fossil fuel, for its base load (the kind of electricity that's always on).

Wind energy is environmentally harmful and costly to taxpayers. Furthermore, its expansion could adversely affect the nation's electricity transmission system.