The California Green Home Inventory Map reveals the volume of high-performance homes (HPHs) in local markets across the state. Consumers are increasingly demanding healthy, energy-efficient homes, and this map aids local governments, building professionals, real estate professionals, utilities and other stakeholders in recognizing HPH market concentration, allowing increased visibility of the opportunities within this growing market.
Consumer interest in efficient, healthy homes is a fundamental change in the market. According to a variety of studies across the United States, HPHs typically experience shorter listing times and are worth more at time of sale, yet these homes and their improvements are often invisible in the market. This means an opportunity is overlooked to drive interest in HPH improvements and the programs that support them. Improved HPH visibility could lead to greater interest in efficiency and certification programs, more work for contractors, and greater home value for real estate professionals and homeowners.
For the HPH Map, zoom in to view the overall volume of HPHs in an area. The color-coded regions are divided by ZIP code. The darker the shade of green, the greater the volume of HPHs. Click on a ZIP code to reveal the total number of homes and a breakdown of homes with GreenPoint Rated certification, LEED certification, solar thermal systems, rooftop solar photovoltaics, or improvements through mPOWER financing.
For the HES Map, zoom in to view the overall volume of Home Energy Scores in an area. The color-coded regions are divided by ZIP code. The colors represent a virtual ‘heat map,’ with yellow representing fewer homes and red representing the greater the volume of Home Energy Scores. Use your cursor to hover over a ZIP code to reveal the total number of homes in that ZIP code.
If your area contains a high number of HPHs or Home Energy Scores, there is an opportunity to quantify those impacts and share the importance of these high-performance features with local professionals. If your area contains a low number of HPHs, there is an opportunity to improve your local housing stock. Home Energy Scores can be utilized to make recommendations to homeowners for making lower-performing homes into an HPH, often with the assistance of local or regional incentives from utility or government-funded programs.
The HPH map depicts the number of homes with any combination of the following: solar thermal or PV systems, green-home labeling certification (including GreenPoint Rated and LEED), and improvements made via mPOWER financing. These homes are often far more energy- and water-efficient than conventional homes, maintain healthier indoor air quality, and utilize sustainable or recycled materials. Due to privacy regulations, the map does not display individual homes, but rather aggregates data from California Distributed Generation Statistics, the U.S. Green Building Council (which administers LEED), Built It Green (which administers GreenPoint Rated), and mPOWER.
The HES map depicts the number of homes with Home Energy Scores. Homes with higher scores (6-10) are often far more energy- and water-efficient than conventional homes, maintain healthier indoor air quality, and utilize sustainable or recycled materials. Due to privacy regulations, the map does not display individual homes, but rather aggregates data from the U.S. Department of Energy (which administers Franklin Energy’s Home Energy Score partner program).
Both maps were developed with support from the Pacific Gas and Electric Company and funded by California utility ratepayers under the auspices of the California Public Utilities Commission.
We are continually improving our maps by adding Home Energy Score and high-performance home data to increase HES and HPH visibility, quantify HPH benefits and further influence overall market transformation. If you have data for consideration of inclusion on the map, please fill out the form.