Renewable energy must be affordable to the consumer if it is to be categorized as sustainable as promoted on the Environment Sustainability Consulting website. An article of interest I found very relevant to this ideology is 'Home Solar made cheaper & easier'. You can read it here
http://green.yahoo.com/blog/care2/67/home-solar-made-cheaper-and-easier.html
(Image Credit: Jeremy Levine Design)
Homeowners looking to switch to solar power can skip the expensive installation and instead use their existing electrical outlet. The home solar kit is designed to be placed as a sunshade over a large window that gets a lot of sun, and faces south.
The product, called Sunfish was created by Clarian Technologies. It generates 1,000 watts of power, enough to run a refrigerator. A smaller version generates 200 watts or enough to power lights within a home using energy efficient bulbs.
In 2011, the cost of the 1,000 watt system will be about $4,000, but it was reported that by 2012, that cost could come down to $3,000. Clarian's website says installing the Sunfish requires 6-8 hours, and it weighs 200 pounds.