I'll say one last thing about Tesla Energy. I know of a small electric co-op in California that has been looking at buying a battery system. Something on the order of 1 MWh. Tesla quotes this as costing $460K on their website. Tesla isn't even in the running since they don't have anyone actively selling it to this utility - neither Tesla directly nor through an installer/VAR. The Tesla system is almost certainly cheaper and better than what they will end up using, but that's irrelevant if no one is making the sale. You can criticize the utility, but frankly, I agree with them. If Tesla can't be bothered to actively sell the product, where are they going to be when it needs service? It isn't as if Tesla Energy has service centers or anything.
Note that it is up to Tesla to make these sales since it does not appear they are or want to work with resellers/installers - their web site is a direct sale web site with no mention of sales partners.
So I fully understand and agree with the analysts that aren't factoring in Tesla Energy. You can crow all you want about a great product, but until Tesla shows they can SELL these great products in some sustainable volume that moves the needle against car sales, then Tesla Energy is a non-entity. And as a final point - wasn't Tesla Energy supposed to show meaningful sales in 2015? Then in 2016? I know the excuses, everyone's got lots of excuses, it's the execution that matters.