6h Presentation World Trade Center HVAC Replacement
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 2 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 4 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 5 Approach A Pilot for the Sustainable Evaluation Framework Balance Cost with Increased Energy Efficiency Eliminate Natural Gas Use Consider System Design Holistically 6 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 7 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 8 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) 9 9 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 10 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 11 Questions? 12
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