Skip to Content (custom)

    More Green Resources

    Looking for additional resources on sustainable building practices?

    We’ve cultivated a comprehensive collection of third-party resources to help you dig deeper into specific aspects of green building. Click on a category below for useful links and resources.

    Residential Green and Energy Efficient Addendum

    A Guide to the Residential Green and Energy Efficient Addendum

    Commercial Green and Energy Efficient Addendum

    Recognition of Energy Costs and Energy Performance in Real Property Valuation: Considerations and Resources for Appraisers, 2nd edition (a guide for the green narrative report)

    PV Value Photovoltaic Energy Voltaic Energy Valuation Model helps determine the value of a new or existing photovoltaic system installed on residential and commercial properties. Developed by Sandia National Laboratories, a multiprogram laboratory managed and operated by Sandia Corp., a wholly owned subsidiary of Lockheed Martin Corp., for the U.S. Department of Energy’s National Nuclear Security Administration, and Solar Power Electric™

    Valuation Advisory 9: Valuation of Green and High-Performance Property: Commercial, Multi-Family, and Institutional Properties. The Appraisal Foundation

    Nationwide: State and Local Energy Efficiency Programs. U.S. Small Business Administration

    California: One-stop site for information about energy resources in California. California Energy Commission

    California: Information on solar programs, rebates, tax credits, installation, and interconnecting. California Solar Initiative

    Green Building Resource Center information for economical, sustainable building solutions. Houston Department of Public Works and Engineering

    Advanced Buildings program transfers advances in building science and energy conversion systems into commercial practice by New York’s residential construction industry. New York State Energy Research & Development Authority

    Property Assessed Clean Energy (PACE) Program. PACE Financing

    Information about ENERGY STAR homes and the HERS Index

    Better Buildings is an initiative of the U.S. Department of Energy designed to improve the lives of the American people by driving leadership in energy innovation. Through Better Buildings, DOE partners with leaders in the public and private sectors to make the nation's homes, commercial buildings, and industrial plants more energy efficient by accelerating investment and sharing successful best practices. U.S. Department of Energy

    Homeowner's Guide to Going Solar. Solar Energy Technologies Office, U.S. Department of Energy

    Energy Efficient Mortgages. An overview of different mortgages available to homebuyers looking to purchase an energy-efficient home. ENERGY STAR.

    Information on selected green zoning codes. New York City: NYC Greener, Greater Building

    San Francisco

    Portland, OR

    Resources on water conservation, efficiency, and demand management for conservation professionals and the larger water supply community. American Waterworks Association: Waterwiser®

    In-depth technical and policy analyses and recommendations regarding green building and other sustainable practices. American Council for an Energy-Efficient Economy

    Energy-efficient and green resources, including a number of Chicagoland resources. Elevate Energy

    Education and resources for green construction.
    AI Green/Sustainable Education

    Examples and goals of green leases. BetterBricks, the commercial building initiative of the Northwest Energy Efficiency Alliance

    Northwest Energy Efficiency Alliance

    Education for home energy auditors. Building Performance Institute (BPI)

    Independent organization to promote responsible management of the world’s forests—administers the FSC certification program. Forest Stewardship Council

    Sustainable Building Assessment & Certification: Information on the Green Building Initiative (GBI), which provides sustainability assessment and certification services through the Green Globes® program. The Green Building Initiative

    Covers a variety of issues that affect energy-efficient/green construction of residential and commercial buildings. National Association of Home Builders

    Independent nonprofit research and educational foundation to foster efficient and sustainable use of resources. Rocky Mountain Institute (RMI)

    National standards and information about becoming a HERS rater or energy auditor. Residential Energy Services Network

    Information on the LEED® certification program, research on sustainable building practices, publications, and more. U.S. Green Building Council

    A central online resource for rebate information. Database of State Incentives for Renewables & Energy Efficiency (DSIREUSA)

    RESNET National Registry of all certified RESNET HERS Raters and homes that have been rated and issued a HERS Index Score since 2012. AI members can register for a members-only portal with even more information. Get registered by emailing Login at

    High Performance Federal Buildings Database. U.S. Department of Energy

    Database: List of Solar Energy Companies. Best Company

    News website for sustainability professionals:BuildingGreen

    List of TED talks on sustainable design.

    Information including PowerPoints, videos, and articles on energy-efficient wall systems. All Wall Co.

    Technical information on home building and panels. NAHB Research Center

    Paper: “Selling Into the Sun: Price Premium Analysis of a Multi-State Dataset of Solar Homes”

    Paper: “Tracking the Sun" report series: Electricity Markets & Policy Group, Energy Analysis & Environmental Impacts Department, Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory

    Paper: “An Analysis of the Effects of Residential Photovoltaic Energy Systems on Home Sales Prices in California” Energy Technologies Area, E.O. Lawrence Berkeley National Laboratory

    Paper: “Exploring California PV Home Premiums” Energy Technologies Area, E.O. Lawrence Berkeley National Laboratory

    Paper: “Market-Based Investigation of Residential Solar Installation Values in Oregon” Energy Trust of Oregon

    Site classifies (premium, standard, economy) many major manufacturers of solar modules EnergySage Inc.

    Section B2-3-04 of the Fannie Mae Selling Guide,“Special Property Eligibility Considerations,” now has guidance on eligibility for properties with solar PV that are either owned or leased by the homeowner. Fannie Mae

    Paper: “The PV Durability Initiative” scores five solar manufacturers from accelerated life testing and long-term field exposure data. Fraunhofer Center for Sustainable Energy Systems

    U.S. Solar Market Trend Report. Grand View Research

    Report: “Solar Ready Buildings Planning Guide” National Renewable Energy Laboratory, operated for the Department of Energy by the Alliance for Sustainable Energy LLC

    Examples of permanent documentation to make a utility worker or emergency response personnel aware there is a photovoltaic system on the property. PNM

    Provides U.S. solar data, including slides and fact sheets. Solar Energy Industries Association

    Report Shows U.S. Solar Industry Tops 1 GW of Installed Capacity for Third Straight Quarter. The summary is free, more specific information by state and market is available forpurchase. Solar Energy Industries Association

    Report: “How PV System Ownership Can Impact the Market Value of Residential Homes” Sandia National Laboratories

    Report: “Standardizing Appraisals for PV Installations” Sandia National Laboratories

    Presentation: “Photovoltaic System Valuation Model—PV Value” Sandia National Laboratories

    Paper: “Solar Photovoltaic Specification, Checklist and Guide” U.S. Environmental Protection Agency

    Global Solar Installed Capacity Per Capita. Infographic from shows solar capacity around the world.

    Fact Sheet: Reducing Up-Front Costs for Rural Energy Efficiency Projects. American Council for an Energy-Efficient Economy

    Article: New Solar Permit Software to Reduce Costs and Expand Residential Markets. Solar Energy Industries Association

    A Guide to Green Loans and Energy Efficient Tax Credits. Rider University

    Solar Resource Guide: A List of Solar Resources for Homeowners. Going Solar

    The below links contain maps of installed solar PV systems across the United States.The level of detail provided in each differs, although an appraiser can use it to get an idea of solar adoption rates and potential comparable properties with PV systems. Various sources

    Arizona Solar Map

    Berkeley, CA

    Cambridge, MA

    Los Angeles, CA

    Madison, WI

    New Jersey

    New Orleans, LA

    New York, NY

    Portland, OR

    Riverside, CA

    San Francisco, CA

    Seattle Puget Sound Area

    Tallahassee, FL


    Vermont Energy Atlas

    Washington County, OR

    Washington DC

    Wellfleet, MA

    Database of solar PV installations utilizing Enphase microinverter technology. Some sites in this interface show production over the lifetime of the PV system, multiple tilt and azimuth configurations, array layout, module manufacturer, and the company that installed the PV system and /or provides the monitoring service. Enphase Energy Inc.

    Spreadsheet on installed PV systems through the Commonwealth Solar incentive program. Information includes building type, city, ownership, system size, installation costs, and rebate approved. Massachusetts Clean Energy Center

    NYSERDA displays PV incentive program data, including location (by city), PV system size, costs (gross and incentive), module and inverter manufacturer, incentive amounts, and whether the PV systems are customer or third-party owned.Chart, table and map views can be generated in the web browser with this data. New York State Energy Research and Development Authority (NYSERDA)

    Free service for sharing and comparing PV output data. Solar PV system owners give PVOutput permission to gather data from their own PV monitoring system to allow for comparing production data in a regional setting or across different components.

    Details PV system name and address, PV system’s size, site photo, date commissioned (operational), inverter specifications, energy production and specific yield, and performance ratio. SMA Solar Technology AG

    The Major Solar Projects List is a database of all ground-mounted solar projects, 1 MW and above, that are either operating, under construction, or under development. Solar Energy Industries Association

    Solar PV installations are detailed if the system uses a Solectria inverter and the site name or installer name is known. Solectria Renewables

    California Solar Initiative (CSI) and California Public Utilities Commission (CPUC) data on installed PV systems. State of California, California Energy Commission & California Public Utilities Commission

    Report: “NCEEA’s ENERGY STAR Market Impact Study” Appalachian State University, North Carolina Energy Efficiency Alliance

    Report: “CPUC Energy Efficiency Primer” California Public Utilities Commission (CPUC)

    Report: “Valuing the Financial Benefits of Energy Efficiency in the Multifamily Sector” Elevate Energy

    Report: “Exploring California PV Home Premiums” Ernest Orlando Lawrence Berkeley National Laboratory

    Academically reviewed papers on sustainable real estate, as well as links, case studies, and sustainability resources The Journal of Sustainable Real Estate, University of San Diego’s Burnham-Moores Center for Real Estate

    Guides and Case Studies for Marine Climates U.S. Department of Energy

    Article: How to Finance Your Business’s Energy-Saving Output Efficiency Vermont

    Article: Green Mortgages: Financing to Make Your Home Energy-Efficient. Overview of loans specifically meant for energy-efficient home buying. MoneyGeek

    A guide to green mortgage eligibility requirements, loan types, and more. FHA Loans

    Article: The Homeowner's Guide to Solar Financing. Let's Go Solar

    Book: Residential Green Valuation Tools has many case studies and examples on how to use solar PV valuation tools, including PV Value®

    A map of LEED commissioned buildings in the United States (commercial) as well as LEED buildings per state, and functionality to virtually explore LEED projects.

    Sample worksheet to calculate heating/cooling costs. Online Remodeling Calculator

    Green Energy Compass online tool for benchmarking, analysis, and reporting of energy for homes and small buildings. Performance Systems Development

    How to Calculate and Present Deep Retrofit Value for Owner Occupants. Rocky Mountain Institute

    Free roof azimuth tool assists in pinpointing a property’s azimuth. Solmetric Inc.

    Free web-based residential energy calculator and web service that provides customized estimates of residential energy use, energy bills, and CO2 emissions.; Identifies potential energy-saving strategies and ranks in order of cost-effectiveness. U.S. Department of Energy

    Find a “Walk Score” for a property to determine ease of living a lifestyle that is less reliant on cars. Walk Score

    Life Cycle Costing Calculator performing economic analysis for all costs related to building, operating, and maintaining an energy conservation measure (ECM) project over a defined period of time. Harvard University

    Statistic: Projection of national spending on green construction in the United States from 2005 to 2018 (in billion U.S. dollars). Statista

    customer service representative
    Contact Us

    Share Your Resources

    Help us keep this list useful and current!

    Please submit your informative green links and recommendation for resources.