Carefully consider the types of solar panels you plan on having installed. Long ago, if you didn't have enough roof space, you'd need very expensive high efficiency mono-crystalline panels. There are now more advanced polycrystalline panels and even thin film panels. If you've got enough roof space, you might wish to look at the size of the panels in relation to their output capacity to avoid having insufficient panels that you need more of later.
The benefits of using solar power can extend into your tax bill. Many areas around the United States are pushing heavily for solar-energy use, and due to this, they are willing to give you a discount on your taxes if you install a system in your home or business.
Here is a review of another Phillips solar powered lighting product purchased from home bargains for £7.99. My video on the solar lanterns proved very popular.
Your solar panels' density will impact their efficiency. Getting high density solar panels may cost you quite a bit, but after a while they'll pay for themselves because they produce more power. Be sure and compare densities before choosing a solar panel.