On Tesla's quarterly earnings call, CEO Elon Musk announced "crazy off the hook" demand for its just-announced Powerwall battery product. He said over 38,000 reservations have been received, which should take up the expected production through mid-2016, and demand is high enough to account for all of the Gigafactory's production if they devoted it just to stationary batteries. That includes some 2,500 companies that are interested in the commercial-ready Powerpack (with orders averaging around 10 units each), and Musk said he estimates that commercial interest in Tesla Energy will account for 5-10 more megawatt hours than residential. To clear up one question about the Powerwall, he mentioned that while it doesn't have a DC-to-AC inverter included, it does have a DC-to-DC unit built in.
Update: It wasn't mentioned on the call, but Tesla also confirmed its first acquisition today, snatching up Michigan-based part manufacturer Riviera Tool.