See how to test your solar panel for open voltage and current reading. Results will vary depending on sun strength, time of day, angle of light and temperature.
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.
Making the change to renewable energy is becoming more and more popular. With concerns about the health of the environment, more and more people are making the switch. Not only are they helping the earth, but saving money at the same time. It really seems like a win-win situation for both individuals and business alike.