For a start, they are clean. Whilst producing electricity from the sun, solar panels generate no pollution, whilst burning fossil fuels emits huge amounts of harmful toxic substances into the atmosphere.
Bear in mind that fossil fuels are limited. Though fossil fuel reserves are anticipated to run out by the next century, solar power is limitless.
Solar panels will liberate you from ever increasing fuel bills. Once you have solar panels installed, you can expect free electricity for many years to come.
With feed in tariffs (FIT) being implemented all over the world, you can even make money with solar panels. If you generate excess energy, you are now able to sell it back to the grid at a profit.
You can also get solar energy companies to install free solar panels for your home but they will take the feed-in money and you get free electricity. This is a win/win situaution but if you can afford the initial investment then I would advise you to invest in the solar panels yourself so you can keep the FIT payments.
But it's not just households that can benefit from solar panels.
Solar panels can be set up on businesses, roof-tops of your homes, on out-of-the-way research stations, and the best thing about this is that it could be used separately, or in alliance with the local power grid.
A solar panel can also be utilized in many handheld and electrical gadgets especially when carrying around a generator would be impractical and inconvenient.
A handy solar battery charger could power up laptops, notebook, netbooks, solar-powered calculators, and even motorized automobiles.