February 16, 2005

Go vegetarian to fight global warming.

The Kyoto Protocol begins today, 100 years too late. Did you know that a third of all fuel used in the U.S. goes to meat production? Very few of us can afford to buy a new more efficient car, install solar panels, replace the furnace, or set up a geothermal exchange system like the one that keeps George Bush's utility bills down in Crawford. But everyone can give up meat.

Livestock production also consumes half of the country's water. And food animals produce 87,000 pounds of excrement per second, seriously polluting the rest of our water. Sustainability begins with our diet.

February 15, 2005

Gee, I wonder who's responsible for Bush's policies

A report on the radio this morning about the token questioning of Michael Chertoff ahead of his confirmation as Secretary of Homeland Security noted that the Democrats are trying to find out who is responsible for the Bush administration policies on torture. Hello? George W. Bush is CEO of the piratical firm that used to be our government. He's the one. Impeach the bastard.

And stop trying to work with him or his agents. This is a democracy. We can get rid of criminal thugs who worm their way into government. We certainly don't have to collaborate in their charade.

Nowhere to go?

Excerpt from "A 'Participant-Observer' on Losing Elections, Pushing Agendas," by Ralph Nader:

'Back in the 19th century, when the two party duopoly began to congeal, progressive or reform publications did not come out against slavery, women's suffrage, the industrial workers' rights to form trade unions, the farmers need for federal regulation of banks and railroads and then decline to support or even write about candidates and small parties who were championing vigorously these same issues inside the electoral arena.

'Those early journalists knew that positions of justice had to be moved into election contests, no matter how uphill was the struggle. They believed in small starts rather than least worse. And guess what -- eventually, measured by decades, the small starts continued to lose elections but their agendas took hold.

'The current crop of progressives need to rethink their imprisonment by a two centuries old, two party monopolized winner take all electoral college system. Do they want to break out of jail? Or do they want to continue sliding into the political pits with their least worse corporatized party that takes them for granted because it knows they have put out the "nowhere to go" sign?'

February 12, 2005

More beans

According to the U.S. Energy Information Agency, if the renewable production tax credit is extended from 2005 to 2015, there will be 42,000 1.5-MW wind turbines installed in the United States by 2025, covering 3,750 square miles. These windmills would generate 206 billion kilowatt-hours of electricity per year, meeting 3.7 percent of the United States’ electricity demand in 2025.

First off, that production figure represents a capacity factor of 37.3% [206,000,000 MW-h ÷ (42,000 × 1.5 MW) ÷ 365 days ÷ 24 hours]. A more likely capacity factor is 20%, which cuts the projected output almost in half.

Second, 3,750 square miles represents 38 acres per megawatt. This is the low end of the density range for wind facilities, which use 30-60 acres per megawatt. So 42,000 1.5-MW (63,000 MW capacity) could very well take up to 5,900 square miles, larger than all of Connecticut.

A power plant the size of Connecticut to provide 2% of the country's electricity. Brilliant.

Full of beans

A guest commentary in Thursday's Upper Cape Codder by Matthew Patrick, representative of the 3rd Barnstable District in the Massachusetts House, is full of beans. For example:
"... [Cape Light Compact members] are quick to remind us that wind turbines need a backup source of electricity when the wind is not blowing. What they neglect to mention is that it is the responsibility of the wind supplier to provide backup electricity eliminating that concern for the Compact.

"... Hull has gained national recognition for placing a wind turbine at its high school that generates all of the municipal electricity ..."
The second claim is an obvious impossibility, and the first one doesn't make a bit of sense. Since when has an application for a wind-power facility included the building of a non-wind backup plant as well? And nobody expects a contracted schedule of energy to be supplied by a wind plant -- utilities have to take whatever whenever the turbines happen to spurt out, for which "performance" the operators are richly rewarded. When the wind blows, they are showered with cash whether or not the electricity is useful to the needs of the grid at the moment. And when the wind is slower -- or too fast -- the wind plant owners still enjoy accelerated depreciation. They certainly aren't expected to worry about the effect on the grid of their erratic product.

February 9, 2005

"Our Wind Farm Story"

Excerpt of article by Pam Foringer, Fenner, N.Y.:

'... as I sit in my kitchen and type this on my computer I hear the constant hum of the blades. It's early November, a brisk day, and of course the windows are closed so that muffles the sound a little. In the summer, with the windows open there is nothing to block out the humming or the grinding sound that the turbine makes when it is being turned. For those that haven't seen a wind tower up close, they are about the height of a 30-story building and the unit on top is the size of a small travel trailer. Because the wind constantly changes direction the blades have to be turned to catch the wind. ... imagine turning a 24-ton object perched on top of a 200-ft tower. That takes a bit of force and at times the sounds that are emitted are rather eery. Depending on the weather it can sound like a grinding noise or at times the shrieking sound of a wild animal. In the winter the noise always seems much louder, perhaps because of the starkness of the season and lack of foliage to muffle the noise. Anyway, when people tell you that the wind towers are virtually noiseless, they haven't lived a couple of football fields away from one 24/7. ... regardless of whether you see them or not, you still hear them, even when they are not operating. When the brakes stop the rotors because it's too windy, you hear a clunking and a grinding that sounds like a freight train's cars bumping together. And when it's time to start them again you can at times liken it to the roar of a jet engine.

'We have some absolutely gorgeous sunrises and sunsets in Fenner. As the sun slowly rises to the east of our house it usually bathes our bedroom wall with its rays. Unfortunately, we now get a strobe effect that can drive you absolutely crazy. It's commonly called the "flicker factor." As the sun shines through the rotors it creates a shadow pattern that you would liken to a strobe light. Because of the close proximity of 4 of the towers to our house we get this light show at various times of the day as the sun travels from east to west. Most of the time I have to close our shades to prevent this from giving me a migraine. And speaking of light shows, if this one during the day isn't enough, we get the nighttime show as well. Each tower has red blinking lights on top of the turbine so unless the shades are closed in the bedroom at night there is a constant red light blinking in perfect view as we lie in bed. We have always enjoyed watching the night sky but now as we drive toward our road what you notice immediately is a huge cluster of blinking red lights.'

February 8, 2005

Another infeed curve

The February 2004 study by the Irish Grid of the impact of wind power contains a graph like the one described in the previous post.


In this case, they are projecting from the 2001 experience of 120 MW of on-shore and 60 MW of off-shore wind power showing a combined annual average output of 37.4% capacity. Notice that with the higher capacity factor the curve flattens, bearing out the prediction of the previous post.

In this case the average level (175 MW) is at about 3,750 hours, or 2/5 rather than 1/3 of the year. But the projection is based on hourly averages only, which they admit makes the performance of the wind plant appear better. So it is likely that actual experience would shift the middle of the curve left, i.e., towards showing output at or above the annual average only 1/3 of the time.