Residential Energy Efficiency

Insulation installerCSD is working with community partners statewide to install weatherization and energy efficiency measures in low-income households at no cost to qualifying residents. Energy efficiency has numerous benefits for you and your community:

  • Energy efficiency and weatherization improvements reduce energy consumption, which may result in lower utility costs
  • Energy efficiency and weatherization can address health and safety issues that exist in the home
  • Energy efficiency and weatherization reduces overall energy demand, which decreases power plant emissions and associated air pollution

Weatherize Your Home

If you feel cold drafts coming from your windows and/or doors, even when they’re closed; are running the heater all day in the winter just to stay warm; are keeping your air conditioner on all the time during the summer; or find your heating and cooling bills too expensive, then energy efficient weatherization measures may benefit you.

Woman adjusting thermostatCSD works with a network of community partners to install energy efficiency and weatherization measures in low-income households. Our partners conduct an assessment or energy audit of the residence to identify specific measures to increase energy efficiency. Based on the results of the assessment, energy efficiency improvements may include:

  • Sealing the holes and cracks around windows, doors and pipes
  • Ensuring proper levels of insulation
  • Fixing or replacing windows
  • Fitting an insulated blanket to the water heater
  • Making sure heating and air conditioning systems are working properly

Do you qualify?

Energy efficiency and weatherization services are available to low-income homeowners and renters. To receive these services from one of our local providers, your household must meet certain eligibility requirements regarding income, household size, and energy use, among other factors. Eligibility for services may vary depending on sources of income and other factors. Please contact your local energy agency to determine your eligibility.

Our energy efficiency and weatherization programs may also prioritize applicants based on the greatest need, income, and households with vulnerable populations, including the elderly, disabled and households with young children.

Are you ready to get started?

If you are interested in  energy efficiency and weatherization services for your home, contact the local Energy Provider in your county to see if you qualify. To search by county click here.

If measures are installed at no-cost for the resident, how are these measures paid for?

CSD-administered energy efficiency and weatherization programs for qualifying low-income Californians are funded by both state and federal monies and deliver economic, environmental, and public health benefits.

By design, these programs leverage multiple funding sources including California Climate Investments funds through the federal Low-Income Home Energy Assistance Program (LIHEAP) funds, federal Weatherization Assistance Program (WAP) funds, utility incentives, and other similar resources to increase energy savings and the health and safety benefits of weatherization services to low-income families.

The U.S. Department of Health and Human Services' Low-Income Home Energy Assistance Program (LIHEAP) provides assistance to eligible low-income households to manage and meet their immediate home heating and/or cooling needs. LIHEAP provides weatherization services and financial assistance to low-income households to offset heating and/or cooling costs or navigate a crisis situation, such as receiving a notice to disconnect or terminate utility services, a life-threatening energy-related crisis caused by a household’s heating/cooling system or an energy-related emergency created by a natural disaster. CSD was awarded $204 million for LIHEAP in federal fiscal year 2019.

The U.S. Department of Energy's Weatherization Assistance Program (WAP) provides eligible low-income households with services designed to improve the energy efficiency of their home, thereby reducing energy usage and costs. This program also offers some health and safety weatherization measures, as well as education on basic energy efficiency practices, and the proper use and maintenance of the measures installed. CSD was awarded $7.5 million for WAP for federal fiscal year 2019.

CSD's Low-Income Weatherization Program (LIWP) focuses exclusively on serving low-income households with solar photovoltaic (PV) and energy efficiency upgrades at no cost. Funded with cap-and-trade auction proceeds, the primary purpose of the program is to reduce greenhouse gas emissions by saving energy and generating clean, renewable energy. But just as importantly, LIWP reduces energy costs for low-income households, freeing up disposable income for other critical expenses. LIWP is one of California's Climate Investments, a statewide initiative that puts billions of Cap-and-Trade dollars to work reducing greenhouse gas emissions, strengthening the economy and improving public health and the environment—particularly in disadvantaged communities. For information about  LIWP, click here.


If you would like more information about our weatherization and energy efficiency programs, including income guidelines, please visit our Programs page. If you have additional questions please email us through our Contact Us page.