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Why is solar power still a pay up-front system?

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The owner of a solar energy company installs panels for a hot water system in Oregon.“The owner of a solar energy company installs panels for a hot water system in Oregon.Melanie Conner/Getty Images

Just about everyone wants to reduce his or her carbon footprint. Yet we’ve also grown attached to our computers, hot tubs and big-screen TVs, all of which require a lot of energy.

Solar power is a clean, renewable energy source, yet it makes up less than 1 percent of the power used in the United States [source: USA Today]. Part of the reason more people aren’t using solar energy to power their homes is the cost. Solar panels can cost $30,000 or more to install, an investment that can take 10 to 15 years to recoup [sources: Live Science, CNET News, Walsh]. As Ed Begley asked in an ad for the solar energy company, Citizenre, "If the mobile-phone industry required you to invest $10,000 to get your wireless service, and it was your responsibility to maintain and repair the network, would you have a cell phone?" [source: New York Times].

­Maintaining solar panels is relatively easy, but it is your job. Depending on the system you have installed, you can expect to spend an entire day or two a year cleaning and caring for your solar panels [source: CalFinder].

There is also the issue of energy production. Unless you live in California or another sunny climate, solar energy alone may not be enough to meet your household’s entire energy needs, meaning that you’ll still have to pay to pull some of your electricity from the regular grid [source: Mother Earth News].

The government has tried to ease the cost of owning solar panels by offering tax breaks, rebates and low-interest loans to help pay for installation. The federal government is offering a tax credit equal to 30 percent of the total cost of any solar panel systems put into service between Jan.1, 2006, and Dec. 31, 2016. California residents can write off an additional $3,000 to $6,000 as part of Gov. Schwarzenegger’s­ 10-year, $3.3 billion program to put solar panels on 1 million California roofs by 2016. States such as New Jersey, Colorado and Maryland offer rebates of up to 70 percent of the cost of solar panel installation.

Homes that are highly energy efficient and produce more solar energy than they can use get another perk. They can put that extra energy into the electric grid. In return, they may get a credit toward future bills from their local electric company.

­If you want all the benefits of solar power without the high up-front costs, several companies are offering a cheaper alternative to buying the panels yourself.

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