Plumbing Fixture Replacement Program If you qualify, we will install a free water-efficient toilet. Residential Washers Earn rebates on your Energy Star high-efficiency clothes washer. Commercial Washers Earn rebates for buying and installing high-efficiency commercial clothes washers. GoSolarSF Our incentive program can help you pay to install rooftop solar panels. Rainwater Harvesting Explore our rebates that lower the cost of a cistern or rain barrel for your home. Graywater We offer workshops, rebates, and design ideas to help you recycle the water from your shower or clothes washer for use in your landscape and garden. Commercial Equipment Retrofit This program offers grants for non-residential retail water service customers who can significantly reduce their use of potable water through upgrade or replacement of existing onsite indoor water using equipment. Sewer Laterals & Insurance Explore options to insure your water and sewer service lines.