Energy audits are detailed building energy-use examinations that identify which systems are operating inefficiently. They also include a financial analysis aimed at identifying cost-effective energy efficiency measures for a building.  

  • A Guide to Energy Audits  
    Understand what an energy audit is, explained by the U.S. Department of Energy, Building Technologies Program. 
     
  • Department of Energy Building Asset Score  
    Score a building’s energy efficiency and create a building energy audit report, provided by the U.S. Department of Energy.  
     
  • Energy Star Treasure Hunt
    ​​​​​​​A no-cost, team-building exercise to identify no cost and low-cost building improvements and operations to save energy.

Retrofitting is the process of making improvements or alterations to an existing building to increase the building’s energy efficiency, reduce operating costs, and improve the comfort and health of occupants. Explore the resources for examples of retrofit projects other building owners have completed. 

  • Better Building Initiative
    Better Buildings is an initiative of the U.S. Department of Energy designed to drive leadership in energy innovation. Find solutions that help reduce costs. Search by keyword or topic and use filters to refine search results. 
     
  • Renewables in Federally-Assisted Properties
    Provided by the U.S. Department of Housing and Urban development, read about how different new and existing federally assisted properties successfully introduced renewable resources.

Retrofitting is the process of making improvements or alterations to an existing building to increase the building’s energy efficiency, reduce operating costs, and improve the comfort and health of occupants. 

Explore the financing options provided by state, federal, and local governments to help fund energy efficiency improvements.  

  • California Alternative Energy and Advanced Transportation Financing Authority
    The California Alternative Energy and Advanced Transportation Financing Authority (CAEATFA) works collaboratively with public and private partners to provide financing solutions for California’s industries, explore available financial incentives for energy efficiency projects.
     
  • GoGreen Financing
    Find financing for affordable multifamily energy efficiency projects through GoGreen, the public-facing platform of the California Hub for Energy Efficiency Financing, administered by the California Alternative Energy and Advanced Transportation Financing Authority. 
     
  • Solar on Multifamily Affordable Housing
    The Solar on Multifamily Affordable Housing (SOMAH) program provides financial incentives to offset the cost of a solar photovoltaic system in multifamily buildings. 
     
  • Transformative Climate Communities
    Administered through the Strategic Growth Council, this program provides funding for development and infrastructure projects in disadvantaged communities.  
     
  • California Low Income Weatherization Program
    The California Low Income Weatherization Program (LIWP), administered by the California Department of Community Services and Development, supports owners and residents to lower utility costs, save energy and reduce greenhouse gas emissions in multifamily properties.
     
  • ENERGY STAR Rebate Finder
    Find rebates on ENERGY STAR certified products by zip code. 
     
  • Financing Companies
    Financing companies listed by the Better Buildings Initiative that fund energy efficiency and renewable energy projects. Better Buildings is an initiative of the U.S. Department of Energy. 
     
  • Alternative Below-Market Loan Programs
    Below-market interest rates and financing for borrowers with lower credit ratings, listed by the Better Buildings, U.S. Department of Energy. 
     
  • Property Assessed Clean Energy (PACE)
    The PACE program is a financing mechanism that enables low-cost, long-term funding for energy efficiency, renewable energy, and water conservation projects that are repaid as an assessment on the property’s tax bill.
     
  • Energy Efficiency Incentive Programs
    List of all financial aid programs collected by the Database of State Incentives for Renewables and Efficiency (DSIRE) operated by the North Carolina Clean Energy Technology Center at North Carolina State University. 

Energy professionals such as engineers, auditors, and building energy consultants may help optimize efficiency improvements and streamline the project process. The CEC does not endorse any of the professionals found in the external resources below. 

Explore ways landlords and tenants can partner to make a building more energy efficient, sustainable, and result in reduced operating expenses and healthier spaces to live and work.  

  • Landlord-Tenant Energy Complete Toolkit - PDF
    Explore the toolkit from the Landlord-Tenant Energy Partnership, an Institute for Market Transformation program, that helps building owners and tenants identify measures aimed at achieving energy efficiency savings in buildings. 
     
  • Improving Business Performance For Owners and Tenants
    Explore resources provided by the Institute for Market Transformation to learn how to improve business performance by implementing energy efficiency measures.
     
  • Landlord and Tenant Collaboration
    Visit the U.S. Environmental Protection Agency’s ENERGY STAR page to read about how landlords and tenants are collaborating to overcome barriers to high-performance buildings. 

Utilities, Community Choice Aggregators, and Regional Energy Networks may offer a variety of incentives, such as product rebates and financing programs to encourage investment in energy efficiency. Below is a list of incentives offered by region.

Northern California

Coastal California

Central Valley and Sierras

Southern California

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