Man I get the feeling that the power company must not like Tesla if they make em jump thru hoops to install.
Its that most grid tie stuff at the homeowner level is a pain in the ass for them, and they want to make sure that some poor lineman isn't going to get lit up because somebody thinks their DIY BS is 'green'. Look at how many stupid idiots use double ended 'suicide cords' to power their house every hurricane.... Add in the obvious lack of any basic science education or reading/research (this forum is a good example "how do I mine bitcoin on my android") , and it's a recipe for a big time sink for them.
Small little sources on the grid are difficult to manage. Green energy in most parts of the country requires other quick turn base loads (natural gas where I live) for when clouds/wind don't work.... It isn't cheap.
(full disclosure - I have a 10KW grid tied, battery backed up system that was inspected by the electrical inspector and utility. It's expensive, and absolutely will never ROI, never.) Yeah, I mine with it, but it's not green...