Quote (njaguar @ Apr 27 2011 10:36am)
From the article:
"
Despite the optimistic results of their calculations, they warn that a plan like this requires a complete revamping of the current electric infrastructure. The country's AC grid would have to be converted to High Voltage DC in order to decrease transmission loss from 50% to around 3% while moving the power from the sunny Southwest to the power-hungry North East. Miles says this would be a huge undertaking that would help move the country from "capital-intensive fossil fuel plants that need to run 24/7" to "electricity created by people's and the economy's daily rhythm," which solar and wind energy follows closely.
In the meantime, Ausra plans to develop a 175-megawatt solar power plant with their solar storage technology, hitting the market mid-2009.
We're inclined to think that the proposal is more of a thought experiment, and while it's an exciting one,
we don't see the US grid switching to DC....ever. But while the South West's abundant sunshine is certainly a resource to be tapped, I'm pretty sure a more distributed system will be best in the end anyhow,"
You are aware that our entire electrical infrastructure is built on AC power, right? Yes, there are converters, but all the equipment in your house runs on AC, from your computer to your refrigerator to your tv. I also am not seeing any numbers to support his calculations, whereas I provided mine, with resources and formulas. In other words, you're comparing apples to oranges.
In order to do this TODAY with current technology, it would require arrays larger than the USA in size. See my calculations. If you don't like the results, do the math yourself, and post results with the formulas and documented numbers, and how you arrived at your conclusion. Please also include not only sheer size involved, but the amount of materials involved (panels), and if possible, an estimated cost (as I also provided).
Good intentions don't override reality, sorry, try again.
An interesting aside is the history (and some say conspiracy) regarding AC vs. DC electricity.
edit:
If we went to nuclear power, we could do it by building about 400-450 more reactors: (probably less if you consider more modern higher efficiency facilities)
"As of 2008, nuclear power in the United States is provided by 104 commercial reactors (69 pressurized water reactors and 35 boiling water reactors) licensed to operate at 65 nuclear power plants, producing a total of 806.2 TWh of electricity, which was 19.6% of the nation's total electric energy generation in 2008.[1] The United States is the world's largest supplier of commercial nuclear power."
http://en.wikipedia.org/wiki/Nuclear_power_in_the_United_StatesWhat is wrong with the first thing you quoted? Scientifically speaking, we should always be upgrading our systems for the most efficient, but money (which should be non-existant in the first place) holds everything back.
It's a thought experiment since oil is still thought to be plentiful and a reliable resource, and soon, that'll be proven wrong. and since we did nothing about we're going to have a hell of a time converting.
also, nuclear plants shouldn't even be touched. I am highly against these, and again, they require INPUT to put output.
and about the time? sure we don't have great solar power yet, and that is again, it is held back by the monetary system.
If we put more money into the research and development we would see great improvements
another example of misplaced money
terrorism kills less people in the united states than peanuts a year, yet we spend $5+ billion on it.
What about the leading death causes in the united states? Heart Disease. about $4 million.
The monetary system is flawed, and the sooner people realize this the better.