Being able to harvest energy from the sun or light and reuse it at a later time not only saves money, it preserves our planet's resource. I was at a networking social when a solar power company was promoting their power panels between $5,000 and $15,000. Depending on how much electricity the panels would save for the family, it would take about 5-10 years to recover the investment.
I am planning to start smaller and for 2011 I want to be more conservative on my energy consumption and has been playing with smaller solar panels for the last few months. Last month I got this solar polar charger from the Pomona computer fair for about $20, which is able to charge electrical devices including phones, cd players, and portable video game systems. Below is a picture of the device, which is the size of a Blackberry and I have been using it to recharge my BB, Nintendo DS, and Playstation PSP game systems.
The device can either be charge by leaving out in the sun or take it to a room with the lights turn on or use the USB port to connect to a computer to charge. There is a little light on the device that turns green when it is getting charge. I wish that I have one of those meters that tells how much money a device use per hour like the Kill-A-Watts that cost about $25, so I can see how much this Solar Power device is saving me and would average about 10 cents per charge and charging 10 devices per week, it would take me about 20 weeks to get my return of $20. It might not mean too much but image if every person in the world use a bigger solar charger how much energy we would be saving especially when these are installed for houses.