Solar roof tiles

Source

 From http://inhabitat.com/2010/10/14/heat-your-home-with-soltech-energys-beautiful-glass-roof-tiles/

the tiles are made from ordinary glass and have about the same weight as those made of clay. Secondly, the system doesn’t, like competitors’ versions, heat up water or vacuum pipes, but clean air. The tiles are installed on top of a black nylon canvas, under which air slots are mounted. The black colour absorbs heat from the sun and the air starts to circulate. The hot air is then used to heat up water, which is connected to the house’s heating system via an accumulator.

Solar is cheaper than nuclear power

From http://theenergycollective.com/oshadavidson/40559/study-solar-power-cheaper-nuclear

The Holy Grail of the solar industry — reaching grid parity — may no longer be a distant dream. Solar may have already reached that point, at least when compared to nuclear power, according to a new study by two researchers at Duke University.

[...]

Having dropped below nuclear power, solar power is now one of the least expensive energy sources in America.

The study is available at  http://www.ncwarn.org/wp-content/uploads/2010/07/NCW-SolarReport_final1.pdf

Water powered car

Can this be true? Think about what it means!