Item No.: 6h_Supp
Meeting Date: July 14, 2020

WTCW HVAC Replacement

Rod Jackson, Capital Project Manager
James Truhan, Sr. Real Estate Manager
Amira Chowyuk, Sr. Environmental Management Specialist

Action Requested
Authorize Design and Construction funding


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PIER 69






PIER 66
PROJECT
LOCATION

World Trade Center West
and Vicinity

Background
69,507 SF, 4 story multi-tenant office building
Tenants: World Trade Center Club, Caf Opla, Columbia
Hospitality, World Affairs Council and Others
Completed construction in 1999
Rooftop HVAC equipment is original to the building
At the end of its useful life

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Project Summary
Replace Primary HVAC
Components + Kitchen
HVAC
Includes cost premiums for off-
hours work and temporary HVAC.
Complete by Fall 2021
Estimated Cost: $3.53M

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Approach
A Pilot for the Sustainable
Evaluation Framework
Balance Cost with
Increased Energy Efficiency
Eliminate Natural Gas Use
Consider System Design
Holistically

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Sustainable Design Approach Goals
Cost effectiveness
-  Costs balanced against environmental benefits
Greenhouse Gas Emission Reduction and Energy Efficiency
-  Eliminate use of natural gas for heating
-  Advance efforts to achieve CA goals
Tenant Impacts
-  Improve occupant comfort, minimize tenant disruption
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Alternatives Considered
Alternative 1. In-kind system
Like-for-like Rooftop Unit (RTU) Replacement
Alternative 2. State-of-the-art system
High-efficiency Dedicated Outdoor Air System (DOAS) Unit with Variable
Refrigerant Flow (VRF) Heat Pump System with Controls and Kitchen DOAS and
VRF Heat Pump
Alternative 3. Hybrid approach
Like-for-like RTU Replacement Plus Controls Retrofit and Variable Air Volume
(VAV) Box Replacement and Kitchen DOAS and VRF Heat Pump

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Alternative Analysis
Greenhouse Gas
Cost Effectiveness                               Energy Efficiency             Impacts to Tenants
Emission Reduction
Maritime/EDD                    Expected
Building Energy                      Energy Use
Capital /                                              Lifetime CO2                                                                                Tenant Comfort/
Emissions                         Intensity      Annual Energy  Level of Work in   Construction
Construction    Life Cycle Cost                       avoided                                                                           Temperature
Reduction                       (reduction    Savings (kBTUs)   Tenant Spaces        Time
Cost                                          (Metric Tons)                                                                          Control
(% from 2018                     compared to
Emissions)                      2017 baseline)

Alternative 1   $1.8M/1.3M      $3.3M          0.0%            10           68 (2%)        84,000          Low           Low            Low


Alternative 2   $6.7M/5.6M      $7.7M          1.2%           519         43 (38%)      1,832,000        High           High           High

Alternative 3   $3.5M/2.8M      $4.9M          0.9%           376         60 (14%)       668,000       Medium       Medium       Medium
(Recommended)
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Alternative 3 Benefits
Reduces 376 Mt CO2 over project life
Eliminates all natural gas use for heating building spaces
Expected to reduce operating maintenance costs at WTCW
Demonstrates innovative HVAC technology
Provides improved tenant comfort and moderate disruption
during construction
Maximizes sustainability goals at a marginal cost increase

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Contracting Method and Schedule
Building Engineering Systems (BES) Contract
Based on lessons learned from other BES projects
Port will provide performance specs and contractor will design and construct
Opportunities for efficiency, quality, and innovation
Women and Minority Business Enterprise (WMBE) goal of 6%
Schedule
Q3/2020 - Q4/2020: Advertise, award, and execute BES contract
Q1/2021 - Q4/2021: Design and construction
Q1-Q3/2022: Project closeout

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Questions?



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