How Much Energy Do Building Energy Codes Really Save? Evidence from California

42 Pages Posted: 29 Dec 2014 Last revised: 6 Jan 2015

See all articles by Arik Levinson

Arik Levinson

Georgetown University - Department of Economics; National Bureau of Economic Research (NBER)

Date Written: December 2014

Abstract

Construction codes that regulate the energy efficiency of new buildings have been a centerpiece of US environmental policy for 40 years. California enacted the nation’s first energy building codes in 1978, and they were projected to reduce residential energy use—and associated pollution—by 80 percent. How effective have the building codes been? I take three approaches to answering that question. First, I compare current electricity use by California homes of different vintages constructed under different standards, controlling for home size, local weather, and tenant characteristics. Second, I examine how electricity in California homes varies with outdoor temperatures for buildings of different vintages. And third, I compare electricity use for buildings of different vintages in California, which has stringent building energy codes, to electricity use for buildings of different vintages in other states. All three approaches yield the same answer: there is no evidence that homes constructed since California instituted its building energy codes use less electricity today than homes built before the codes came into effect.

Suggested Citation

Levinson, Arik M., How Much Energy Do Building Energy Codes Really Save? Evidence from California (December 2014). NBER Working Paper No. w20797, Available at SSRN: https://ssrn.com/abstract=2543648

Arik M. Levinson (Contact Author)

Georgetown University - Department of Economics ( email )

Washington, DC 20057
United States
202-687-5571 (Phone)
202-687-6102 (Fax)

National Bureau of Economic Research (NBER)

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Cambridge, MA 02138
United States

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