Friday June 20th, 2014
12:00 pm to 1:00 pm

2014 Daylight Hour

The Daylight Hour.  A single hour when we ask you to TURN IT OFF.

Most offices have their lights on even when they are not needed. Spaces near exterior walls often receive enough daylight to work by, without the aid of electric lighting, but most often we leave the lights on anyway.  This is a critical issue because the times when daylight is most available (summer afternoons) coincides with peak demand- the time at which we are demanding the most energy from the grid.   This peak energy is the most expensive energy, and typically the dirtiest and most harmful to our global climate because the oldest, least efficient plants are brought online to meet this need. Our recent study, Let There Be Daylight, found that owners and tenants could save $70 million every year by introducing daylight responsive lighting systems. At the same time, balanced day-lit spaces are often the most pleasant to spend time in, and studies suggest these spaces promote our health and well-being, improve productivity and reduce absenteeism. A variety of lighting control systems are available that respond to the presence of daylight by reducing electric light levels- but these systems are not standard.

To demonstrate the availability of daylight and draw attention to this important issue Green Light New York is organizing the “Daylight Hour”- a single hour in the workday when we turn off the lights in day-lit spaces.  Green Light will be tracking participants, promoting their involvement and efforts, and estimating the energy savings of the Daylight Hour to publicize the impact.  This activity will act as a springboard to deliver programs and other resources on the strategies and technologies that enable the daylighting of office spaces.

Register your organization for the Daylight Hour.

You’ll be asked for some basic information like:
– Name of organization
– Whether you are a building owner or tenant
– Daylight Hour ambassador contact info
– Estimate of the area of the spaces that will participate
– Quick description of the space types and lighting systems

Participants will be asked to post photos on Twitter or Facebook from their day-lit spaces at the beginning and the end of the Daylight Hour to demonstrate their participation. Use #DaylightHour in your social media posts.

Prizes will be awarded to the most successful Daylight Hour participants for:
Largest Area of Impact (SF)
– Longest Distances Between Offices
– Best Monitoring and Analysis
Most Creative Photograph
– Best Social Media Posts
And more!

To sponsor the Daylight Hour project contact us:


318 Technology
Adelphi University
AKF Group
Allen + Killcoyne Architects
Amenta Emma Architects
American Efficient Lighting
American Jewish Joint Distribution Committee
American Office
Architecture Research Office
Association of Energy Affordability
Atelier Ten
Bleecker Associates
Bright Power
Brooklyn Greenroof
Buchbinder & Warren
Buro Happold
Center for Active Design
CodeGreen Solutions
Community Environmental Center
CUNY Building Performance Lab
Dattner Architects
DayNine Consulting
Direct Marketing Association
Domingo Gonzalez Associates
Energy Paradiso
ESPL Environmental Consultants
Focus Lighting
Free Range Studios
Getty Images
Goldman Copeland
Great Forest Inc.
Green Light Sustainability Advisors
Green Mountain Energy
Gumley Haft
Helpern Architects
Hippodrome Building
HLW International
HR&A Advisors
HTA Lighting
Illumination Arts
Integrity Iron
International Living Future Institute
Jacobs | Doland | Beer
Jaros Baum & Bolles
Jones Lang Salle
Kugler Ning Lighting Design
Linnaea Tillett Lighting Design
Lockheed Martin Energy Solutions
Mancini Duffy
Mayer Brown
Mertz Gilmore Foundation
Mitchell & Titus
Modi Architecture Design
Natural Resources Defense Council
Nature Publishing Group
NYC Landmarks Preservation Commission
New York Power Authority
Nextek Power Systems
NYC Daylighting
NYC Dept. of Citywide Administrative Services
NYC Energy Efficiency Corporation
NYC Mayor’s Office of LTPS
O’Blaney Rinker Associates
Optimal Energy
Oxfam International
PBDW Architects
Perkins Eastman
Quadlogic Controls
Quebec Government In New York
RDG Planning & Design
RED Music
Renfro Design Group
Rudin Management
SHP Leading Design
Skidmore, Owings & Merrill
Smart Fiber Skylights
Solar Electric Power Association
South Side Design & Building
Steven Winter Associates
Sustainable Energy Partnerships
Taitem Engineering
Terrapin Bright Green
The Durst Organization
JPB Foundation
Lower East Side Ecology Center
Sallan Foundation
Threshold Acoustics
Tishman Speyer
Trinity Real Estate
Urban Future Lab
Urban Green Council
Urban Green Energy
UW Integrated Design Lab
Vital Vio
Watt Not
Westlake Reed Leskosky
Willdan Energy Solutions
WNUK SPURLOCK Architecture
Wolf Conservation Center
YR&G Sustainability


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