Commercial Refrigeration Specification Program

This page last reviewed April 13, 2011

Commercial refrigeration

§ Proposed leak reduction measures for new supermarkets and new systems (PDF 89KB)

§ Proposed leak reduction measures: response to comments; April 12, 2011 (PDF 178KB)

§ Cost-benefit analysis of proposed supermarket leak reduction  measures; April 12, 2011 (PDF 223KB)

§ Proposed energy conservation measures for new supermarkets and new systems (PDF 1.0MB)

§ Supermarket Codes and Standards Enhancement (CASE) Report; March 17, 2011 (PDF 1.3MB)

As part of the California Global Warming Solutions Act of 2006 (AB 32) the ARB has approved an early action measure to reduce high-global warming potential (GWP) direct greenhouse gas (GHG) emissions from refrigerant leaks, and to reduce indirect GHG emissions from energy use of commercial refrigeration systems. ARB has teamed with the California Energy Commission (CEC) to help develop new standards for commercial refrigeration systems that will be incorporated into the CEC’s Title 24 Building Energy Efficiency Standards revisions for 2011. The CEC is the lead agency for Title 24 Standards. This web page provides information as the process proceeds in developing the standards to implement this early action measure.

Emissions from refrigeration systems are categorized as direct refrigerant emissions (typically high-GWP ozone depleting substances [ODS] or hydrofluorocarbons [HFCs]) and indirect emissions (CO2-equivalent emissions resulting from energy use).  Direct emissions occur during equipment manufacturing, operation (from leaks, ruptures, maintenance), and disposal at end-of life.  Indirect emissions occur during equipment operation.

Strategy Description: The California Energy Commission is working with the ARB, research consultants, technical experts, and stakeholders to develop cost-effective measures to reduce direct and indirect GHG emissions from new commercial refrigeration systems. The proposed standards have yet to be developed, but could include: 1) design and best practice installation measures, 2) energy efficiency measures; and 3) other measures to be determined pending research findings and stakeholder input.   Direct and indirect emissions need to be considered together over the lifetime of the refrigeration equipment, so that choices made to reduce direct emissions (e.g. low-GWP refrigerants or standalone systems) do not adversely impact energy consumption and vice versa.

For additional information, please contact: 

Glenn Gallagher staff lead (916) 327-8041
Pamela Gupta Greenhouse Gas Reduction Strategy Section Manager (916) 327-0604