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.
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When you are just transitioning to solar power, pick something small to start with. Purchase a few solar energy lights for landscape lighting to help save energy and protect our planet. You can find them at big box and even home improvement stores. The installation is simple enough for the budding do-it-yourselfer to accomplish.
Solar power is a good thing to consider if you use a lot of power and your roof gets a minimum of five hours direct daily sunlight. The money and energy saved by installing solar panels is well worth the energy invested into installing them.