Don't assume that just because a company sells and installs solar panels means they are good and trustworthy people. Shop around. Get a minimum of three quotes. Read all contracts. Check backgrounds of potential contractors. Deal with this like any other home-improvement project that you would otherwise do.
One major advantage of solar power is that there are a wide range of systems on the market. While there are those that are very expensive, others are quite affordable. Therefore, regardless of your income level, you can afford to set up a solar power system. You just need to do your research and figure out what product is best for you.
Its target is cheap steam (about 1 cent per kWh = about 3 USD per million BTU) and maneuverable solar electricity at a cost of 3 cents / kWh More details on this …
Using the energy of the sun is a clean way to power the things we use. It's also sustainable as the energy never runs out. One hopes that technology will continue to progress so that everyone can use this energy. For now, you're planning to use it yourself, and that is a step in the right direction.