Reducing initial cost by an estimated 20-25 percent, rebates remain a strong incentive for investing in energy-efficient lighting and controls. In 2020, significant rebate opportunities are widely available for LED lighting and controls, including growing availability of rebates for networked controls.
The U.S. economy grew by 2.2% in 2019 and is expected to slow to 2% in 2020, according to the most recent forecast released by the Federal Open Market Committee Meeting on December 11, 2019. The slowdown in 2019-20 is considered a byproduct of the trade war. A major contributor to the economy is construction, and the outlook for construction spending in 2020-21 is positive but lower than 2019. The AIA’s semi-annual Consensus Construction Forecast, a survey of the nation’s leading construction forecasters, is projecting 1.5% growth in nonresidential construction spending in 2020 and 1% in 2021.
Next month, the 2016 version of ANSI/ASHRAE/IES 90.1, Energy Standard for Buildings except Low-Rise Residential Buildings, takes effect as the national energy reference standard, based on a 2018 Department of Energy (DOE) ruling. By February 2020, all states must adopt a commercial building energy code at least as stringent as the standard, or justify why they cannot comply.
The American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) and the Illuminating Engineering Society (IES) recently published ANSI/ASHRAE/IES Standard 90.1-2019, Energy Efficiency Standard for Buildings Except Low-Rise Residential Buildings. This edition includes more than 100 changes from the 2016 version, covering administrative and enforcement, commissioning, mechanical, and lighting. For lighting, the new version adjusts interior power allowances, updates several control requirements, and introduces a simplified compliance method for office, school, and retail buildings.
The American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) recently published guides on how to design buildings that achieve net-zero energy consumption without compromising quality.
Building upon previous guides targeting deep energy savings, the first two new guides were developed in partnership with the American Institute of Architects, Illuminating Engineering Society, and U.S. Green Building Council, and target K-12 and small to medium office buildings.
By early 2020, the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) is expected to release a new version of the BACnet building automation system protocol. BACnet Secure Connect, or BACnet/SC, brings this popular open industry standard into the Internet of Things (IoT) age by enabling the easy and secure transfer of large volumes of data.
In August 2019, the University of Oregon published a whitepaper, “The Impact of Lighting and Views in the Workplace of the Future.” The paper concludes that daylighted spaces with controlled lighting and views can improve occupant well-being, workplace productivity, and satisfaction by positively influencing various physiological and psychological processes. Lighting and views also impact property value and employee recruitment and retention, the researchers said.
Tunable-white LED lighting offers highly efficient general illumination combined with dimming and the ability to tune correlated color temperature (CCT) from warm- to cool-white. A strong potential application is classrooms, where teachers can set lighting/visual conditions to support classroom activities. In May 2019, the Department of Energy (DOE) published a Pacific Northwest National Laboratory (PNNL) report evaluating a trial installation of tunable-white lighting systems at three classrooms in an elementary school in Folsom, California.
The Lighting Research Center (LRC) recently published a new DELTA report evaluating new sensor-controlled LED corridor lighting installed in a multifamily residential building in Albany, New York. The project showed significant energy savings while overall occupant response was positive.
This article provides general introductory knowledge about the lighting control requirements imposed by the 2016 version of ASHRAE/IES 90.1 and the 2018 version of the IECC.