Bingham, ME: (AP) A proposal to build what would be Maine’s largest energy-generating wind farm has received preliminary approval from state environmental regulators. The Department of Environmental Protection’s draft decision, issued Wednesday by Commissioner Patricia Aho, means the department could issue a final decision as early as Sept. 5. The deadline is Sept. 8. Blue Sky West, a Boston-based developer and subsidiary of First Wind Holdings Inc., has been seeking approval for the $400 million, 62-turbine project proposed for Bingham, Maine and surrounding communities since May 2013. However, before the farm can be erected there remain some hurdles. Financing. A company spokesman is the project does not yet have financing. The 206-megawatt project has also faced legal challenges over financing and environmental impacts. The project could be appealed to the state Board of Environmental Protection if it receives final approval.