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Tenant Case Study: Skanska 

Here we illustrate the experiences of one tenant, Skanska, sharing its no-compromise energy efficiency and the measurement of its cost savings within its first year of occupancy at the Empire State Building.

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Tony Malkin interview on MSNBC's "Morning Joe" 

Tony Malkin appeared on "Morning Joe" to discuss the Empire State Building Retrofit.

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President Obama praises the Empire State Building Retrofit during his remarks on innovation at Penn State University 

President Obama visited the Penn State Campus in State College, Pennsylvania and toured labs focused on energy-efficient building solutions. The President then delivered remarks on the importance of investing in innovation and clean energy to put people back to work and grow the economy.

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Discovery Channel's Green Room covers the Empire State Building Retrofit 

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Empire State Building Goes Green: Planet Forward

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The Iconic Empire State Building Gets a Makeover

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Empire State Building Gets Green Makeover

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Greening the Empire State Building

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Latest News

All 6,514 windows have been retrofit ahead of schedule by October 2010.
  • A window refurbishment processing center was built on-site at ESB, reducing transportation emissions and creating 50 local union positions.
  • 95% of the glass was re-used.
  • Insulating value was increased from R2 to R7.
  • The refurbishment reduced overall cooling and heating expenses.
Installation of the reflective insulation behind each of the 6,514 radiators was completed by October 2010.

Radiative barriers were insulated, redirecting heat inward, reducing the project’s use of steam and, thus, operating costs.

The chiller plant was retrofit and completed by April 2010.

The electric chiller plant was completely rebuilt. Only the heat exchanger shells were re-used. Efficiency gains from .8 kW/Ton to .55 kW/Ton at full load and proportionately better at part loads, increasing available cooling capacity and reducing capital expenditures and operating expense.

The Building Management System (BMS) (building automation and controls) was upgraded and submeters were installed on each floor and completed by December 2010.

Upgrades of the building management system (BMS) included replacing outside air dampers that are now controlled by CO2 sensors reducing both cooling and heating requirements while providing proper required fresh air.

The Tenant Energy Management Program was completed in December 2010.

Multi-channel state-of-the-art electric meters have been installed in every electrical distribution closet allowing floor-by-floor, quadrant-by-quadrant down to individual tenant suite monitoring of electrical energy consumption available for building management as well as tenant energy management. This energy dashboard is currently rolling out.

Awards & Accolades

  • 2011 — NY Post recognizes the Empire State Building's sustainability efforts with the "Green Brick Award"
  • 2009 — "SBIC (Sustainable Buildings Industry Council) Beyond Green Award" honoring the buildings renovation, retrofit, and historic reuse and preservation projects
  • 1994 — "Energy User News Efficient Building Award" as a result of the Empire State Building's lighting retrofit project.

Reports & Resources

White paper: "A Landmark Sustainability Program for the Empire State Building"
Dive into the details about the Empire State Building retrofit project.

Presentation: "Empire State Building Case Study"
Browse a PowerPoint presentation to learn how the ESB retrofit will reduce energy use, increase cost savings and reduce greenhouse gas emissions.

Document: "Energy Services Performance Contract"

Document: "Performance Contract Schedule"

Click the building to download quick facts about the Empire State Building Program