Lennox Commercial

The new ASHRAE Green Standard 189.1

In order to help building architects, engineers and facility managers utilize a standard approach to designing, building and operating Green Buildings, the American Society of Heating, Refrigerating and Air-Conditioning Engineers created a new baseline to fill the gaps of evolving building codes.

In January, ASHRAE Standard 189, Standard for the Design of High-Performance, Green Buildings became the new standard for national and international green building criteria. While building heavily on prior AHSRAE standards (Energy Standard 90.1, Ventilation Standard 62.1 and Thermal Environmental Standard 55), the new standard applies a more defined and stringent criteria to building design and operation. Moving beyond the design phase, ASHRAE 189.1 offers detailed goals for the construction, commissioning and operations phases.

Why the stricter standards?

The design requirements were created to result in a 30% reduction in energy consumption when compared to standard 90.1. With the completion of the standard the U.S. Department of Energy (DOE) and researchers at National Renewable Energy Laboratory (NREL) were tasked to run a series of simulations to measure the site-energy-savings-potential of Standard 189.1. Modeling the performance of commercial buildings across 16 climate zones resulted in a weighted average energy savings of 29.7% versus Standard 90.1-2007.

Long term reduction in utility bills, more efficient operation and a demonstration of strong environmental stewardship are goals ensured by the new ASHRAE Standard 189.1 requirements.

Learn more about ASHRAE Green Standard 189.1.

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