California this month became the first U.S. state to require solar panels on almost all new homes.
Most new units built after Jan. 1, 2020, will be required to include solar systems as part of the standards adopted by the California Energy Commission. Estimates are that the mandate will drive up the cost of buying a house by almost $10,000.
The PV-on-house law is a new component of Governor Jerry Brown’s effort to slash carbon emissions by 40% by 2030, and provides a potential roadmap for other states to follow. The U.S. had 10.4 gigawatts of residential solar power at the end of last year, up more than 600% from five years earlier. California’s move will boost the residential solar industry, which started slowing in 2017 after government policy changes and efforts by some companies to shift their strategies.
Installation of a solar system and other energy-efficiency requirements will add about $9,500 to the cost of a new home, according to the California Energy Commission. The cost would be offset by about $19,000 in expected energy and maintenance savings over 30 years, according to the commission.
Related Stories
Codes and Standards | Aug 3, 2021
Dept. of Energy releases initial version of the Spawn of EnergyPlus software
Targets new use cases in advanced controls, district systems, and grid integration.
Codes and Standards | Aug 2, 2021
Several U.S. cities among most expensive places to build in the world
San Francisco, New York, and Boston head the domestic list.
Codes and Standards | Jul 28, 2021
American Concrete Institute creates new director of innovative concrete technology post
Aim is to attract emerging technologies for development.
Codes and Standards | Jul 28, 2021
Higher ed faces infrastructure backlog of $112.3 billion
Study recommends integrated strategic planning for best results.
Codes and Standards | Jul 27, 2021
Add a wobbly moon to flooding risk factors
Earth satellite’s orbit variations will lead to sunny-day flooding in the mid-2030s.
Codes and Standards | Jul 26, 2021
Revamping of Florida building codes on the table after condo collapse
Tragedy could prompt upgrades like post-Hurricane Andrew effort.
Codes and Standards | Jul 21, 2021
Proposal to give Calif. hospitals more time for earthquake retrofits stirs controversy
State hospital association says 2030 deadline should be extended.
Codes and Standards | Jul 20, 2021
New York, New Jersey legislatures may revamp bidding rules to promote low-carbon concrete
Contractors would have to certify that their concrete is in compliance.
Codes and Standards | Jul 19, 2021
Lack of information on carbon emissions challenges construction industry
Reports recommends whole-life carbon assessments on building projects.
Codes and Standards | Jul 19, 2021
Florida condo collapse spurs increased scrutiny on inspections, regulations
Insurers demand proof of current inspections.