#LIGHTING POWER DENSITY ASHRAE 90.1 INSTALL#

In all, the new ASHRAE/IES 90.1 standard is far more comprehensive, stringent and complicated than its predecessors.

According to the Department of Energy, commercial buildings designed to ASHRAE/IES 90.1-2010 are expected to achieve 32.6% site energy savings and 30.1% energy cost savings compared to buildings compliant with ASHRAE/IES 90.1-2004, excluding plug loads. The 2010 version takes both of these trends to a new level with the goal of achieving dramatic energy savings and taking a significant step towards the ultimate goal of net-zero buildings.

#LIGHTING POWER DENSITY ASHRAE 90.1 INSTALL#

Over the past decade, the standard has steadily become more restrictive in terms of allowed lighting power and requirements to install lighting controls. The 2010 version, published November 2010, represents the most dramatic revision of the standard since 1999. Today, most states have adopted either 90.1 or the International Energy Conservation Code (IECC), published by the International Code Council (ICC), as their energy code, have a code based on one of them, or publish a state-specific code with similar requirements. ASHRAE/IES 90.1, Energy Standard for Buildings Except Low-Rise Residential Buildings is published every three years to provide states and other jurisdictions with a model commercial building energy code.

Lighting power density ashrae 90.1