Michael Cordero with Renova Solar updated us with the latest on what is happening in the solar industry and what to look for when purchasing solar panels. Solar panel “fade”, or decrease in efficiency over time, should be on your list of questions when speaking to a solar salesman. When purchasing solar panels, be sure that you get 10% more than you expect to need. The last thing you want to do is obsess over the thermostat because your system isn’t producing enough solar power.