There are two forms of tinnitus: objective and subjective. Objective tinnitus means that both you and other people can hear certain noises in your ears. This is usually due to abnormal blood vessels in and around your ears.
The main advantages of solar energy are that it is clean, able to operate independently or in conjunction with traditional energy sources, and is remarkably renewable.
The bad news is that the majority of renewable energy is hydropower, which is not an exponentially improving technology. The good news is that solar energy is an exponentially improving technology, growing 30% a year in the US. If this continues, solar installations, which just hit one million in Q1 2015, will account for virtually 100% of US electricity production, according to Stanford's Tony Seba.