Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

NYSERDA Logo


Aura - Background Content
backgroundImageHrefTypelink
padding10
backgroundColor#222c4e
containerMinHeight0
backgroundSizecover
contentPositionflex-start
backgroundPositioncenter center


HTML
<div class="dropdown">
  <button class="drop-down-button1">Playbook Menu</button>
  <div class="dropdown-content">
  <a href="https://knowledge.nyserda.ny.gov/pages/viewpage.action?pageId=110723298">Playbook Home</a>
  <a href="https://knowledge.nyserda.ny.gov/pages/viewpage.action?pageId=110723436">Getting Started</a>
  <a href="https://knowledge.nyserda.ny.gov/pages/viewpage.action?pageId=110723479">Building Discovery</a>
  <a href="https://knowledge.nyserda.ny.gov/pages/viewpage.action?pageId=110723438">Energy & Carbon Modeling</a>
  <a href="https://knowledge.nyserda.ny.gov/pages/viewpage.action?pageId=110723484">Economic & Financial Analysis</a>
  <a href="https://knowledge.nyserda.ny.gov/pages/viewpage.action?pageId=110723487">Durst: Case Study</a>
  <a href="https://knowledge.nyserda.ny.gov/pages/viewpage.action?pageId=110723493">ESRT: Case Study</a>
  <a href="https://knowledge.nyserda.ny.gov/pages/viewpage.action?pageId=110723518">Hudson Square Properties: Case Study</a>
  <a href="https://knowledge.nyserda.ny.gov/pages/viewpage.action?pageId=110723562">Vornado: Case Study</a>
  <a href="https://knowledge.nyserda.ny.gov/pages/viewpage.action?pageId=110723596">Learn More About the Playbook</a>
  <a href="https://knowledge.nyserda.ny.gov/pages/viewpage.action?pageId=110723606">Tenant Engagement</a>
  <a href="https://knowledge.nyserda.ny.gov/pages/viewpage.action?pageId=110723608">Financing</a>
  <a href="https://knowledge.nyserda.ny.gov/pages/viewpage.action?pageId=110723610">Training</a>
  <a href="https://knowledge.nyserda.ny.gov/pages/viewpage.action?pageId=115410765">EBC Cohort 2: Workshop Preparation</a>
  </div>
</div>


Aura - Title
color#222c4e
textAlignleft
fontSize20
lineHeight20
cloudTextDemo Title
tagh2
fontWeightbold
HIDDEN


Aura - Title
color#f3b43d
textAlignleft
fontSize38
lineHeight38
cloudTextDemo Title
tagh2
fontWeightbold
ESRT: Case Study



Aura - Panel
tab1
styles{"body":{},"header":{},"headline":{},"base":{"backgroundColor":{"color":"#ffffff"},"border":{"color":"#222c4e","style":"solid","width":1,"bottom":true,"top":true,"left":true,"right":true}}}
body<p><br /></p>


Info
iconfalse

Empire State Realty Trust's (ESRT) goal is to achieve net-zero carbon emissions across its 10.1 million square foot portfolio by 2035 (more on ESRT's Sustainability program here).  Learn more about how ESRT evaluated the technical and economic potential to achieve carbon neutrality at five of their buildings, including the Empire State Building.

PDF
nameDeep Energy Retrofit 5 ESRT Buildings.pdf
pageThe Empire Building Playbook


Aura - Panel
tab1
styles{"body":{"text":{"color":"#002d72","textAlign":"left","fontWeight":"normal","fontSize":14}},"header":{"backgroundColor":{"color":"#0073a4"}},"headline":{"alignment":{"horizontal":"start"},"text":{"text":"Reflections","color":"#ffffff","textAlign":"left","fontWeight":"bold","fontSize":26}},"base":{"backgroundColor":{"color":"#ffffff"},"borderRadius":{"radius":4},"boxShadow":{"shadows":[{"color":"rgba(0, 0, 0, 0.08)","x":0,"y":1,"blur":1,"spread":0},{"color":"rgba(0, 0, 0, 0.16)","x":0,"y":1,"blur":3,"spread":1}]}}}
body<p><br /></p>
  • Central systems may present more opportunities for optimization based on automation and controls sequences.

  • High performance standards: Consistent rollout of high-performance standards is crucial:
    • Key internal and external service providers (fit out designers, controls vendors, maintenance contractors, lease negotiators) require technical oversight to ensure all their work supports energy and carbon efficiency goals.
  • Tenant designs: Small deviations of tenant designs from energy code and tenant design guidelines can build up to significant impediments to achieving carbon savings.
  • Small decisions add up to big impact: Consider long-term ROI and operational consequences of first-cost decisions on all projects.  


Aura - Panel
tab1
styles{"body":{"text":{"color":"#002d72","textAlign":"left","fontWeight":"normal","fontSize":14}},"header":{"backgroundColor":{"color":"#0073a4"}},"headline":{"alignment":{"horizontal":"start"},"text":{"text":"Contributing Organizations","color":"#ffffff","textAlign":"left","fontWeight":"bold","fontSize":26}},"base":{"backgroundColor":{"color":"#ffffff"},"borderRadius":{"radius":4},"boxShadow":{"shadows":[{"color":"rgba(0, 0, 0, 0.08)","x":0,"y":1,"blur":1,"spread":0},{"color":"rgba(0, 0, 0, 0.16)","x":0,"y":1,"blur":3,"spread":1}]}}}
body<p><br /></p>


Empire State Realty TrustBuro HappoldJohnson ControlsLuthin AssociatesQuest Energy Group Reos PartnersSkanska



Aura - Panel
tab1
styles{"body":{"text":{"fontSize":14,"color":"#002d72","textAlign":"left","fontWeight":"normal"}},"header":{"backgroundColor":{"color":"#0073a4"}},"headline":{"text":{"text":"Building the Decarbonization Roadmap for the Empire State Building","fontSize":26,"color":"#ffffff","textAlign":"left","fontWeight":"bold"},"alignment":{"horizontal":"start"}},"base":{"boxShadow":{"shadows":[{"color":"rgba(0, 0, 0, 0.08)","x":0,"y":1,"blur":1,"spread":0},{"color":"rgba(0, 0, 0, 0.16)","x":0,"y":1,"blur":3,"spread":1}]},"borderRadius":{"radius":4},"backgroundColor":{"color":"#ffffff"}}}
body<p><br /></p>

The Empire State Realty Trust and their team of consultants shown above, followed the Playbook approach to define the decarbonization roadmap for their flagship office building: the Empire State Building. The iconic landmark consists of 102 stories totaling 2.8 million gross square feet, among which 1.8 million square feet of rentable space.

Aura - Panel
tab1
styles{"body":{"text":{"fontSize":14,"color":"#002d72","textAlign":"left","fontWeight":"normal"}},"header":{},"headline":{},"base":{"boxShadow":{"shadows":[{"color":"rgba(0, 0, 0, 0.08)","x":0,"y":1,"blur":1,"spread":0},{"color":"rgba(0, 0, 0, 0.16)","x":0,"y":1,"blur":3,"spread":1}]},"borderRadius":{"radius":4},"backgroundColor":{"color":"#ffffff"}}}
body<p><br /></p>

Anchor
table_of_contents
table_of_contents

Status
subtletrue
colourYellow
titleTABLE OF CONTENTS

Table of Contents
maxLevel2
exclude(TABLE OF CONTENTS|HIDDEN|ESRT: Case Study)



Aura - Panel
tab1
styles{"body":{"text":{"fontSize":14,"color":"#002d72","textAlign":"left","fontWeight":"normal"}},"header":{},"headline":{},"base":{"boxShadow":{"shadows":[{"color":"rgba(0, 0, 0, 0.08)","x":0,"y":1,"blur":1,"spread":0},{"color":"rgba(0, 0, 0, 0.16)","x":0,"y":1,"blur":3,"spread":1}]},"borderRadius":{"radius":4},"backgroundColor":{"color":"#ffffff"}}}
body<p><br /></p>

Getting Started


Back to Table of Contents

The ESRT management team took great care to assemble a project team with deep expertise that could handle the level of complexity, interdisciplinary thinking, and innovation needed to tackle the challenge of bringing the Empire State Building as close as possible to its carbon neutrality goal. The core project team consisted of:

  • ESRT, building owner and facilities team
  • Buro Happold Engineering, global leader in whole building systems engineering
  • Quest Energy, energy modeling consultant
  • Skanska, constructability and cost analysis consultant
  • Luthin, grid, tariff, rate, tax, and carbon emissions fine (LL97) expertise
  • Johnson Controls, BMS vendor and consultant
  • Tabla Raza, external consultant specializing in innovative solutions with technology
  • Reos Partners, facilitation and support of collaborative meetings

Additional support was provided by:

  • Trystate Mechanical, mechanical contractor assisted in pricing ECMs
  • Robert Clarke Associates, leading expert in the application of architectural glass technology to sustainable design
  • Mosto Technologies, energy consult specializing in commercial steam systems in NYC
  • Sentient Buildings, energy management consultant providing real-time building automation that enables advanced monitoring and management solutions
  • Cortex, energy management consultant providing real-time energy monitoring software and system recommendations
  • US Chillers, global chiller and energy solutions provider
  • Lutron, leading expert in lighting design
  • Sapient, external consultant specializing in plug load management
  • Wint, water management consultant

Back to Table of Contents


Aura - Panel
tab1
styles{"body":{"text":{"color":"#002d72","textAlign":"left","fontWeight":"normal","fontSize":14}},"header":{"backgroundColor":{"color":"#1ea9e1"}},"headline":{"alignment":{"horizontal":"start"}},"base":{"backgroundColor":{"color":"#ffffff"},"borderRadius":{"radius":4},"boxShadow":{"shadows":[{"color":"rgba(0, 0, 0, 0.08)","x":0,"y":1,"blur":1,"spread":0},{"color":"rgba(0, 0, 0, 0.16)","x":0,"y":1,"blur":3,"spread":1}]}}}
body<p><br /></p>

Building Discovery


Back to Table of Contents

Learn the Building

The project team assessed the existing conditions and systems of the Empire State Building. The team reviewed the following items:

  • Operating schedule
  • Building and energy management systems
  • Cooling systems
  • Heating systems
  • Ventilation systems
  • Lighting
  • Plug loads
  • Tenant IT loads
  • Domestic hot water
  • Envelop system

Here is a quick summary of the current building HVAC system:

  • Offices and base building up to floor 79:
    • Steam radiators supplied by district steam
    • VAV chilled water AHUs
    • Electric drive centrifugal chillers located in the cellar separately serving three pressure zones with a common condenser water system
    • Steam chillers as backup only
  • Retail:
    • Water-cooled DX
  • 80th floor and above:
    • Multiple air-cooled chillers serving multiple systems including observatory
    • Some self-contained air-cooled DX in some broadcast areas


Build the "Business-as-Usual" Base Case

Utility Analysis (Existing Condition) - The project team analyzed the building utility data for baseline year of 2019 to evaluate the breakdown of energy usage, utility costs and resulting carbon emissions by fuel source (i.e., gas, steam, and electricity – broadcast electricity usage was also broken out at the request of the owner). Electricity energy usage made up the majority of the energy consumption at 63.2%, while steam made up 35.1% of the energy used. While the energy cost profile is similar, the portion of electricity costs increases relative to the steam cost due to the tariff structures for the building. The results of the study are shown in the figure below:

ESRT ESB - 2019 Baseline Building Energy Consumption by Fuel TypeESRT ESB - 2019 Baseline Building Energy Cost by Fuel TypeESRT ESB - 2019 Baseline Building Carbon Emissions by Fuel Type

Figure - 2019 Baseline Building Energy Consumption (LEFT), Energy Cost (MIDDLE) and Carbon Emissions (RIGHT) by Fuel Type

Building Performance Standard Impact Analysis - Important carbon-related project objectives were overlaid onto the base case to help the project team understand at a glance the scale of the reductions required. These included the LL97 emissions limits for 2024-2029, 2030-2035, and beyond 2035 as well as an 80% reduction from the 2007 baseline. Superimposing this information made it clear that while previous energy efficiency measures had significantly reduced emissions below the LL97 2024 limit, more work was needed to meet the remainder of the emissions limits and the 80% reduction target. Notably, achieving the 80% target would require more than just improving or even eliminating gas and steam usage, but also reducing the electrical usage.

Figure - 2017 &. 2019 Baseline Carbon Emissions Compared to Project Objectives


</