Via Nichola Groom LOS ANGELES (Reuters) – In a first on Monday, an online marketplace will enable U.S. homeowners to weigh options for going sunlight as easily as they may be able to examine costs for airline tickets. Geostellar, a startup backed by way of power producer NRG Vitality Inc, is looking for to change into the Expedia or Orbitz of the solar business — a one-stop retailer the place shoppers can not simplest compare the benefits of leasing sun panels versus shopping for them outright, however ultimately sign as much as set up a device. Sunlight gamers together with NRG, No. 1 U.S. …