We all know that boosting our homes’ energy efficiency helps the environment, but more and more homeowners are realizing that it saves them a bundle on their utility bills too. For homeowners in California, a new statewide program called Energy Upgrade California can help qualify you for thousands of dollars in rebates and incentives. You can get the valuable rebates simply by making some energy-saving upgrades to your home — a process that might actually make your living space more comfortable and healthy.