While we're not talking commercial solar power here, thought this was worth a mention... Jesper Frausig has developed the first solar powered bicycle in Copenhagen. This bike can travel almost 65 kilometres once fully charged and can reach a speed of up to 50 km/h. And when the battery is drained all you have to do is park it in the sunlight to recharge it!
Here is an excerpt:
In Copenhagen, there are more bicycles than residents and about 50 percent of the population bike to work, so it shouldn’t come as a surprise that an innovative bicycle would be invented there.
Jesper Frausig has developed Solar Bike, a solar-powered electric bike able to travel about 40 miles on a full charge.
One of the main advantages of a solar-powered bike is that you don’t have to plug it in. Just park it in the sunlight and you’re good to go. The solar panels embedded in the wheels harvest sunlight and store the energy in a battery mounted to the frame.
When you’re in motion, the motor uses energy from both the solar cells and the battery to propel the bike forward.