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ConSol Publications

ConSol has provided research for a number of groups on a variety of topics including the impacts of codes and regulatory requirements on the building industry, cost-effectiveness of a particular building product and carbon energy assessment to evaluate and demonstrate the environmental benefits of a community or project. ConSol’s team of industry experts leverage strong market analysis experience, deep analytical skill sets in emerging technology and energy markets, and an expansive knowledge in a variety of energy, building and technology sectors to develop innovative and insightful research publications for our clients.

California’s 2016 Residential Energy Efficiency Standards: Compliance Cost & Design


An examination of incremental costs associated with the energy efficiency standards that will take effect January 1, 2017 including for the first time a significant compliance credit for on-site rooftop solar photovoltaic (PV) energy systems.Read more

California's Residential Indoor Water Use (2nd Edition)


New homes built to today’s standards including the California Green Building Standards Code, use far less water than homes built 20 years ago. This study examined residential historical standards on water flow for shower heads, toilets, faucets and clothes washers, as well as water used for landscaping, and compared them to the water savings potential for new homes built to current California building codes and standards. Read more

Energy Analysis for Window Films Applications in New and Existing Homes and Offices


The purpose of this study was to demonstrate the cost-effectiveness of energy control window film in homes and offices, in order to make a case for inclusion in energy and green codes, programs and incentives in the state of California and expand opportunities for window film in the California market. Read more

California’s 2013 Residential Energy Efficiency Standards: Compliance Cost & Design Impact (updated Jan 2014)


This cost impact study details the incremental compliance costs for production builders to transition from building to the 2010 California Building Energy Efficiency Standards to building to the 2013 California Builder Energy Efficiency Standards using the performance compliance approach. Read more

Carbon Footprint of Single-Family Residential New Construction


The carbon emissions from a new home built to 1990’s code was 10.9 metric tons of CO2e per house per year. The carbon emissions from a new home built to 2006’s code was 8.2 metric tons of CO2e per house per year. New residential construction accounts for only 0.12% of California’s building energy usage each year. To reduce GHG emissions in the entire residential marketplace, we must also look at retrofit. The existing building sector is so large that it is critical to investigate the opportunities for it as well as new construction. Read more

Meeting AB 32 - Cost-Effective Green House Gas Reductions in the Residential Sector


There are approximately 13,270,000 dwelling units in California. Residential new construction typically adds 150,000 new units to the stock each year, which represents just 0.12% (about one-tenth of 1 percent) of the carbon emissions in California. New residential dwelling units built to the 2005 Title 24 energy code are already 25% below the 1990 GHG emissions target levels set by AB 32. Given production levels and the energy efficiency of new homes, the only way to reduce GHG emissions in the entire residential marketplace to required levels is to develop programs to retrofit existing homes to lower the GHG emissions caused by them. Read more