You see so many lithium boat batteries catch fire? Maybe because the battery technology's not there yet. I work around a power company quite a bit with a pretty good sized solar feild( several dozen acres) & they told me there was no way that they could provide enough power for the small neighborhood right down the road from them on solar power. Things will really have to change if that's possible. Also makes me wonder if they'll start mining the lithium with fossil fueled equipment or battery powered?