Solar Power Headed For 45% Annual Growth 402
mdsolar writes "USA Today is running a pretty good article on solar power that gives an overview of the current state of the industry. Highlight include production costs of $1.19/Watt for First Solar, 40% annual cost reductions over the
last five years, revenues expected to triple in three years, and a prediction for 2014 as the year when solar photovoltaic power plants become cheaper than other forms of generation. From the piece: 'Like wind power, solar energy is spotty, working at full capacity an average 20% to 30% of the time. Solar's big advantage is that it supplies the most electricity midday, when demand peaks. And it can be located at homes and businesses, reducing the need to build pollution-belching power plants and unsightly transmission lines. In states such as California, with high electricity prices and government incentives, solar is already a bargain for some customers. Wal-Mart recently said it's putting solar panels on more than 20 of its stores in California and Hawaii. Google is blanketing its Mountain View, Calif., headquarters with 9,212 solar panels, enough to light 1,000 homes.'"
Understatement (Score:5, Interesting)
Solar's big advantages are that it is essentially pollution free, doesn't up CO2, reduces petroleum requirements which means more lubricants, plastics and so on at reasonable prices, reduction of political leverage of oil rich countries, increase in ability to operate independently at every level from national to individual, and over the long term, it costs less.
Combined with ultracaps, hopefully to be seen as practical power storage come this fall (via EEStor [google.com]), the power supply landscape may change significantly in the next decade or so.
Solar is Limited due to its Low Energy Density (Score:3, Interesting)
Most people don't want to live in a place that's covered in solar panels and windmills far as the eye can see...
And on a related note, neither windmills nor solar panels are benign - they both have a subtle effect on the environment
With all that said, for personal / household use solar has much promise, assuming the price can be reduced further, such as panels on roofs, etc to help people augment their energy needs.
Ron
Re:independence ! (Score:3, Interesting)
Running light duty cycles they should last for a pretty long time.
Re:Understatement (Score:5, Interesting)
http://en.wikipedia.org/wiki/Image:Solar_land_are
Granted, those locations are huge, but consider all the empty spaces in the deserts of the world that get tons of sunlight but are otherwise useless. I have seen updated maps with smaller locations that assume a higher efficiency solar cell, since this map only assumes 8% efficiency, and normal panels have about 15% with research being done in the 30-40% efficient range.
Re:Not on my roof (Score:5, Interesting)
In tiered markets, where the higher usage of electricity costs you much more than the base usage, a properly-sized solar outfit can do it in 3 years.
As for taking a loan on your solar outfit, look at it this way: Pay money to some electric corp every month, or spend the same amount of money on your solar cells. In the first case, you'll pay forever. In the second, you'll pay for a while, then get to enjoy the benefits. It's like leasing vs. buying a car.
Re:$/Watt (Score:1, Interesting)
Let's say we buy 1kW panels (paying 1190$ for them). The cost of 1KWh is about 15cents per kWh (here in Europe). So the reimbursement period is about (1190$ / 0.15$) ~= 8000h (less than a year).
After 10years of use the cost of kWh drops to =~1.5 cent per kWh. Why nobody buys them?
It's the grid that's the issue! (Score:2, Interesting)
Sure, PV modules don't convert all they see to useful electricity. Where they really shine (sorry) is that they generate that power AT THE POINT OF USE.
Look at the chart on p 8 (of 41) of this pdf from Lawrence Livermore National Labs [llnl.gov].
Note that of the 38.2 quads (quadrillion BTUs) of electrical energy produced in the USA in 2002, fully 26.3 quads never get used! That's where the real power (sorry again) of solar is found.
Here's your call. (Score:2, Interesting)
(Less if you figure the asset value in the house.)
As for betting on future (grid) energy prices, I'm going to bet that it's not going to get cheaper over the next 10 years. You are free to bet on the utilities lowering prices, alternate fuels being cheaper, overproduction of solar energy, and Unicorns.
100k houses per annual Iraq war. (Score:2, Interesting)
Sounds like a lot- but it's really not.
However... the price is dropping. At some point very soon- you could give 1 million houses free solar power each year. And then they question is why are we wasting blood and treasure in a foreign land.
OTH- I think that solar will not get much cheaper than oil for a long time.
If solar is cheaper, the producers, or the government will be more likely to take extra profits or taxes. So if oil power is $2 bucks a unit, then solar power is going to be roughly $2 bucks per unit.
Re:Understatement (Score:4, Interesting)
Excellent points, but it's advantage is also it's disadvantage. Imagine trying to run a steel foundry on solar power. Now, imagine running a third world steel foundry on solar power. That's the gripe many developing nations have with Kyoto - how are they supposed to enter the 20th century if they can use coal fired power?
Crap on... (Score:2, Interesting)
Have you gone off-grid yourself? How much did it cost, and have you micromanaged your energy consumption to make it work? If you haven't, might I suggest you investigate the costs and then get back to us?
45 percent of 0.1 percent is not much (Score:3, Interesting)
If we were serious you'd be seeing increases of 1000 to 5000 percent every year.
Re:independence ! (Score:3, Interesting)
Re:Understatement (Score:4, Interesting)
Rainfall is certainly a major factor, but not the only one.
In the desert case, a lack of rainfall is one problem, but a parching sun is another. By putting up shade, you're eliminating the major factor that's drying out the soil from what rain does fall. You're reducing available light for photosynthesis, too, but the lack of moisure is a much greater limiting factor in a desert.
Overall, it'd be a pretty dramatic change. Of course, there's absolutely no reason to "panel the desert", so to speak. With a proper regulatory environment, you can "panel the cities". Perhaps the new slogan could be, "A plug-in hybrid in every garage and a photovoltaic system on every roof."
Re:22 years to replace net generation (Score:2, Interesting)
B.S. about price dropping (Score:4, Interesting)
http://www.solarbuzz.com/ [solarbuzz.com]
You will see that solar panel prices bottomed out back in 2003 and have been rising ever since. Demand is exceeding supply thanks to ever more generous subsidies, especially in Germany, which have driven up worldwide price. The truth is that solar costs more today than it has for several years, and costs are still rising slowly. It is a myth that solar prices are constantly coming down.
Re:Understatement (Score:2, Interesting)
because the desert is useless and if destroying the local ecology can reduce greenhouse gasses, then dammit its the right thing to do!
btw, remember that the north slope in alaska has oil in it, so that area is bad to develop.
posting AC because pointing out hypocrisy on slashdot is only for people and groups that the majority of slashdot agrees they dont care for.
Re:Dude, you're 30 years behind. (Score:3, Interesting)
The question is, what happens to these nasty materials once they are used? Do they become part of the product and get shipped out the door? Do they get hosed off and recycled for the next batch? Perhaps they get neutralized somehow? Or are they just dumped into the local river?
How exactly are the toxic materials handled? And what is their final effect on the environment, especially compared to the effects of mining and burning an equivalent amount of coal?
Re:22 years to replace net generation (Score:3, Interesting)