Alan Boyle at Cosmic Log has an update on Emc2 Fusion's WB-7 Polywell fusion experiment. Emc2's Richard Nebel reveals progress made and says that WB-7 is up and running and producing data.
As to whether Polywell fusion will ever produce enough energy to justify its (relatively low) cost, it remains to be seen. But the good news is that the U.S. Navy has provided funding to push this work forward and continue the legacy of the late Dr. Robert Bussard. With any luck, WB-8 will be a more powerful reactor—possibly in the 100 MW range—that will prove that Polywell fusion is not only viable, but vastly more efficient than the ITER boondoggle.