Publications

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Document type: State-specific, Technical Assistance report
Publication Date: September 2009
Page Focus: Adoption

This analysis of residential energy code compares the requirements of the 2009 International Energy Conservation Code (IECC) with the residential code—or typical construction practice in the absence of a code—in most states as of June 2009. The results, which include estimated typical energy savings of updating each state’s code to the 2009 IECC, are provided in chapters specific to each state.

Several states have either not adopted a mandatory energy code or developed their own codes which have minimal or no connection to the IECC. The latter—including California, Florida, Oregon, and Washington— were not included in this analysis because the codes in these states would be difficult to appropriately compare to the 2009 IECC and most of these states have energy offices that have already assessed the IECC on their own.

Document type: State-specific, Technical Assistance report
Publication Date: April 2004
Page Focus: Adoption

The state of New York asked the U.S. Department of Energy to evaluate the cost-effectiveness of the requirement for heat recovery for service water heating that exists in the 2003 International Energy Conservation Code to determine whether this requirement should be adopted into the New York State Energy code.

Document type: State-specific, Technical Assistance report
Publication Date: September 2004
Page Focus: Adoption

The New York State Department of State requested the U.S. Department of Energy (DOE) compare the effects on energy usage as a result of implementation of the 2004 Supplement to the International Energy Conservation Code with the current New York code. The comparison had to determine whether additional costs of compliance with the proposal would be equal to or less than the present value of anticipated energy cost savings over a 10-year period. Under DOE's direction, Pacific Northwest National Laboratory completed the requested assessment of the potential code upgrade.

Document type: State-specific, Technical Assistance report
Publication Date: June 2004
Page Focus: Adoption

The state of New York asked the U.S. Department of Energy to analyze the potential energy effect and cost-effectiveness of the lighting requirements in the 2003 International Energy Conservation Code as they consider adoption of this energy code. The new provisions of interest in the lighting section of the 2003 IECC include new lighting power densities and requirements for automatic lighting shutoff controls.

Document type: State-specific, Technical Assistance report
Publication Date: February 2001
Page Focus: Adoption

The Pennsylvania Housing Research Center (PHRC) has created a proposed alternative path for complying with the energy efficiency provisions of the2000 International Energy Conservation Code (IECC) or the 2000 International Residential Code (IRC) for residential buildings. The Pennsylvania Department of Labor and Industry requested that the U.S. Department of Energy (DOE) evaluate the PHRC proposal to determine whether it meets or exceeds the energy efficiency requirements of the IECC. Under DOE's direction, Pacific Northwest National Laboratory reviewed and assessed the PRHC proposal.

Document type: State-specific, Technical Assistance report
Publication Date: May 2009
Page Focus: Adoption

An analysis by Pacific Northwest National Laboratory show that the 2009 International Energy Conservation Code (IECC) contains several major improvements in energy efficiency over the current Utah code, the 2006 IECC. The most notable changes are improved duct sealing and efficient lighting requirements. A limited analysis of these changes resulted in estimated savings of $168 to $188 for an average new house in Utah at recent fuel prices.

Document type: State-specific, Technical Assistance report
Publication Date: December 2006
Page Focus: Adoption

The U.S. Department of Energy has requested Pacific Northwest National Laboratory to estimate the energy savings, economic impacts, and pollution reduction from adopting the 2003 International Energy Conservation Code (IECC) as the mandatory residential energy efficiency code in the state of West Virginia. The state currently allows a less energy efficient replacement option. This report addresses the impacts for low-rise residential buildings only.

Document type: State-specific, Technical Assistance report
Publication Date: October 2007
Page Focus: Adoption

As of the writing of this report, the state of Wyoming currently does not have a statewide building energy efficiency code for residential buildings, although Laramie adopted the 2003 International Energy Conservation Code. The U.S. Department of Energy has requested Pacific Northwest National Laboratory to estimate the energy savings and economic impacts from adopting the 2006 IECC. This report addresses the impacts for residential buildings only.