Solar works great when solar is available. We often work with customers in environments where solar is not readily available year round (Vancouver where it is overcast, and Fort McMurray where daylight is only available for 6.5 hours in the winter). The issue with solar is that you have to implement a huge solar array (up to 40x the load) and even bigger battery bank. Our hybrid systems insulate this issue in the winter when solar is unpredictable by use of the methanol fuel cells.