The good news is that the City of Lathrop is saving $9,320 a month in energy costs since committing to a solar project on some of the city’s largest buildings. But getting there was anything but a straightforward path. On Monday night, the Lathrop City Council voted to streamline the power purchase agreement that through a series of ownership changes ended up being held by a company that declared bankruptcy.While the financial troubles of SunEdison Inc. presented a challenge in terms of paperwork, their bankruptcy in no way jeopardized the city’s commitment to the project as it was purchased by NRG Energy Inc. almost immediately.