Solar power is also having a major dip in price as of today. There are many reasons why this is happening and it's more of a reason to get into this stuff now. One of the main drawbacks of panels especially those that run away from the sun is that they tend to be expensive.
You have to take the time and do some research because if you consume a lot of energy then it will make your system spend a lot of money. The best way to go about it is to reduce the amount of energy consumption we have and improve the efficiency of our homes.
Another thing is that with these systems there is only one way to get solar power. The only way you can produce electricity is if the sun is shining. That is why it is recommended to have a hybrid system.
This isn't necessarily a drawback only really a drawback to using one source of energy. If you have a few different sources of producing electricity then you will be sure to be producing electricity all year round. The best part is you will be doing it all for free after the upfront costs.
The great news about solar is that prices seem to be dropping and the technology is only getting better. The price may still be a bit high for most people but the hope of one day being able to get off-grid is still there. It's as simple as taking responsibility and making small goals and achieving them consistently.