Just a few percent of that will be great numbers for Electrovaya

"Overall, Tesla says it’s accelerating and expanding its plans to make the grid batteries. The company is seeing strong demand for the Powerpack and Powerwalls, in particular in Australia, Germany and South Africa.

Earlier this year Musk said the company had $1 billion-worth, or 100,000 in orders, for the grid batteries. As a result the grid batteries are sold out in 2016 already. Musk has also said that there’s been so much demand for Tesla’s grid batteries that they “went viral” and were “crazy off the hook.”

Previously Musk has estimated that just the grid battery orders could deliver between $40 million to $45 million in sales for the fourth quarter of this year. Sales for the battery business could be “ten times that number next year,” — or presumably $400 million to $450 million in a quarter — after that.

Beyond next year, the business could reach “a few billion dollars in 2017.” “It’s sort of growing by a half order of magnitude to an order of magnitude per year,” said Musk earlier this year."