www.greenlightny.org
ADVISORY GROUP
CO-AUTHORS
Mark Ambrosone, Vornado
Adam Hinge
Candace Damon, HR&A
Yetsuh Frank
Elizabeth Donoff, Architectural Lighting Magazine
Richard Yancey
Jonathan Flaherty, Tishman Speyer
STEERING COMM
Chris Garvin, Cook + Fox Russell Leslie, Lighting Research Center Hayden McKay, HLB Lighting Design Chris Meek, Integrated Design Lab Michael Mehl, JB&B Jean Savitsky, JLL
Ashok Gupta, NRDC Laurie Kerr, NYC Mayor’s Office of Long Term Planning & Sustainability
REPORT SPONSOR Natural Resources Defense Council
Stephen Selkowitz, Lawrence Berkeley National Labs Byron Stigge, Level Infrastructure Marsha Walton, NYSERDA greenlightny.org
GLNY Daylight Controls Potential Report
ADAM HINGE
LET THERE BE DAYLIGHT Retrofitting Daylighting Controls in NYC Office Buildings greenlightny.org
AGENDA
The Opportunity Challenges The Path Forward greenlightny.org
AGENDA THE OPPORTUNITY CHALLENGES THE PATH FORWARD
The Opportunity
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THE OPPORTUNITY
NYC’s New Lighting Laws will Drive Massive Retrofit Activity greenlightny.org
Unique opportunity with enormous magnitude • Local Law 88 of 2009 requires lighting upgrades in all commercial big buildings • New technologies prices dropping rapidly • New Codes are becoming more stringent
THE OPPORTUNITY
Lighting upgrade law will effect approx. 1.25 billion SF of space
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THE OPPORTUNITY
Interior lighting is the largest electric end use
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Per Con Ed 2010 Energy Efficiency Potential Study
THE OPPORTUNITY
The scale of NYC’s office market is unique
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Office space in major US CBD’s
THE OPPORTUNITY
Lighting is a big contributor to Peak Demand greenlightny.org
Electric Lighting Demand & Building Peak Demand
THE OPPORTUNITY
But Daylight is available when it’s most needed greenlightny.org
Daylight Availability & Building Peak Demand
THE OPPORTUNITY
Advanced Daylight Controls cut use when electricity is most costly greenlightny.org
Impact of daylight dimming
THE OPPORTUNITY
TECHNICAL POTENTIAL
Advanced Daylight Controls can provide significant Energy Savings and Peak Demand reduction
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THE OPPORTUNITY
TECHNICAL POTENTIAL
Technical Potential
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• Simple Model Developed • Nearly a Quarter of NYC’s 542 million SF of office space can accommodate daylight controls
THE OPPORTUNITY
TECHNICAL POTENTIAL
Sensors and controls adjust electric lighting relative to available daylight greenlightny.org
Daylight Controls Diagram
THE OPPORTUNITY
TECHNICAL POTENTIAL
±28% floor area has access to daylight
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Typical building floor plans with “Daylight Zone Areas”
THE OPPORTUNITY
TECHNICAL POTENTIAL
Potential Savings of NYC Office Space with Daylighting Controls
Significant Saving Possible
• 160 MW Electric Demand = 16 Empire State Buildings • 340 GWh electricity savings = More than all private office space in Albany Central Business District • $70 million annual cost saving
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THE OPPORTUNITY
TECHNICAL POTENTIAL
Advanced Daylight Controls Cut Peak Demand greenlightny.org
Total building electric demand vs. demand with Daylight Dimming
AGENDA THE OPPORTUNITY CHALLENGES THE PATH FORWARD
Challenges
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CHALLENGES
There have been persistent challenges to realizing the potential greenlightny.org
• Doing it right is not easy… • … and can be expensive • Many existing projects are not working as intended • Occupants and building operators often don’t understand systems BUT these can be overcome
OVERCOMING CHALLENGES
TIME WARNER CENTER
Example: Time Warner Center Retrofit • Less then 10 years old; was state of the art when built • Peak Demand reduced from 70 kW to 30 kW • 4.3 year payback after Con Ed rebate
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AGENDA THE OOPPORTUNITY CHALLENGES THE PATH FORWARD
The Path Forward
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THE PATH FORWARD
Coordinated effort needed to realize the potential
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Several Pieces Needed • Proof of Concept • Financial Incentives • Training • A Phased Approach
THE PATH FORWARD
GLNY GAME PLAN
Three Phases
Green Light New York Game Plan
greenlightny.org
• 2013-14: Strategically Selected Demo Projects • 2015-16: Carefully Designed Incentive Programs • 2017-18: Broader Deployment
THE PATH FORWARD
GLNY GAME PLAN
GLNY Next Steps • Case Study pamphlets
Action items to realizing the potential
• Web page for symposium, report, case studies, other resources • Phase 2: Demo retrofit projects; before/after M&V • Training: GLNY technical training on advanced daylight controls
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www.greenlightny.org