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Throughout the continental United States, energy codes vary from state to state.
Most states have adopted some type of Standard for their energy codes, which include applications for lighting controls.
With the exception of California and Wisconsin, the International Energy Conservation Code (IECC) and ASHRAE-90.1 are the Standards that most states have adopted.
Save Energy, Save Money
The biggest single energy cost in commercial and institutional
buildings is the lighting load. Significant costs can be saved
by proper management of lighting loads.
IECC-2000
This Standard requires exterior lighting to be either photocell controlled or astronomic time controlled.
Also, areas enclosed by floor-to-ceiling partitions must have manual switches to turn off at least 50% of the lighting.
No automatic controls, however, are required to sweep them off.
IECC-2001 Supplement
This Standard adds the requirement of having automatic shut off of all lighting with certain exceptions.
The overall control zones must not exceed 25,000 sq. ft., must not exceed a single floor of a multi-story building, and must have an occupant override.
IECC-2003
This Standard adds the requirements that:
Each occupant override must not exceed 5,000 sq. feet. -
Local overrides of automatic control must not exceed
2 hours.
There must be automatic holiday scheduling capability; Each area with floor-to-ceiling walls must have a local switch capable of controlling:
IECC-2006
This Standard adds occupancy sensors and external systems
as automatic shutoff control options. It also uses more stringent
factors for calculating interior and exterior power allowances.
ASHRAE 90.1-1999
Similar to IECC-2001 Supplement.
ASHRAE 90.1-2001
Essentially, similar to IECC-2003.
ASHRAE 90.1-2004
Similar to IECC-2006.
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Title 24
The most stringent of all state energy codes codes are for
California and Wisconsin. With the recent implementation of
Title 24-2005, which came into effect October/05, California
has exceeded any of the specs or standards listed above. Wisconsin
is conforming to the old Title 24 requirements, which are
similar to ASHRAE 90.1-2001.
Douglas Lighting Controls has prepared a summary of the Title
24-2005 requirements -now in effect for the State of California-
as they apply to lighting controls: Title 24-2005 Summary.
Types of State Energy Codes
The following states have mandatory compliance to IECC-2006
and/or ASHRAE 90.1-2004 or have state codes
that are very similar:
Georgia, Florida, Idaho, Illinois, Iowa,
Kansas (voluntary by local jurisdiction), Kentucky, Louisiana,
Maine, Maryland, Massachusetts, Minnesota, Montana, Nevada,
New Hampshire, New Jersey, New Mexico, North Carolina, Ohio,
Oregon, Pennsylvania, Rhode Island, South Carolina, Utah,
Vermont, Virginia, Washington, Wisconsin.
The following states have mandatory compliance to IECC-2003
and/or ASHRAE 90.1-2001 or have state codes
that are very similar:
Arkansas, Colorado (voluntary by local
jurisdiction), Connecticut, Nebraska, New York, Oklahoma,
Tennessee (voluntary by local jurisdiction),
West Virginia.
The following states have mandatory compliance to IECC-2001
and/or ASHRAE 90.1-1999 or have state codes
that are very similar:
Delaware, Hawaii (voluntary by county),
Michigan, Texas.
The following states or regions have mandatory compliance
to IECC-2000:
District of Columbia.
Many of the states are in the process of updating their codes.
To view the most recent information available, go to www.energycodes.gov/state_codes,
then select the state.
For more information on your region's energy codes and how
they relate to your lighting control requirements, contact
Douglas.
Summaries of Each State's Energy Code
Douglas Lighting Controls has prepared summaries of each
state and some regional energy codes for commercial applications
as they apply to lighting controls. You can view or download
each of the summaries via the following links:
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