Northeast of what? Assuming you mean Northeast US, why? There's not a whole ton of sunlight; you'd probably be better pumping the solar electricity into the grid during the day. Run this type of application where there's less cloud cover and that doesn't need electricity (like deserts) and ship ethanol to where it'd be most useful (aka. fuel production plants).
I'm a fan of Android as a platform (I really don't like iOS or Apple to be blunt) but I dislike Samsung's "custom" Android and their "security" features that lock down phones and remove consumer choice (Knox and TrustZone). However, the Note brand is not at fault for this Note 7 problem and if they can find the cause or release a new model that doesn't have issues I don't see any reason that ditching a brand that has been one of their most popular phones would be warranted. There's better reasons to not buy Samsung hardware (the hardware isn't one as it's pretty nice in general) and I feel that they handled the recall issue quickly and as best they could.
You say copyright and then you say patent; pick one. This Judge is saying it's not patentable but he did not say that a specific implementation could not be copyrightable. If someone reverse engineers your software and then re-releases it as his own I'm guessing you can still sue for damages.
It's good to hear a detailed first-hand account of someone dealing with Tesla. They've always seemed to be a company who would go above and beyond to give top-notch customer service. It's good to see that's true. Once they get a model that's more in line with a normal sedan price (their current low-end models are still a bit pricey) I'd definitely (strongly) consider purchasing one.
Store your values as total cents instead of fractional dollars? The base unit is cents, not dollars, anyway. (In the US) If you're storing fractional numbers for anything that requires a specific value you're doing it wrong.