Northwest Natural Holding Company, Oregon's largest natural gas utility, has announced a new initiative aimed at promoting energy efficiency in homes. The company is offering a free home insulation package through its Fill Good Summer Sweepstakes, which is open to customers until October 1. Participants can enter by completing a survey on NW Natural's website. This initiative is part of NW Natural's broader efforts to encourage energy conservation, which also include providing free weatherization kits, partnering with community organizations for energy-saving improvements, offering rebates on high-efficiency appliances, and providing cash incentives for weatherization upgrades in collaboration with the Energy Trust of Oregon. The company also offers billing and payment programs to assist customers in managing their monthly bills.