Alternative energy and the companies that support it are here to stay, despite the changing politics in the other Washington. That was the sentiment as the state’s CleanTech Alliance held its annual meeting in Seattle. The group, which lobbies on behalf of the sector, is getting ready to celebrate ten years since its founding. And over the last six years, the organization has grown from just 35 members in 2010. “And now we’re just about 300. So almost 10-time factor of growth,” said CleanTech