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HomeMy WebLinkAbout20200174 269 Broadway Commercial Retail/Bldg Exhibit A Carbon Emissions Report SARATOGA OFFICE BUILDING Carbon Emissions Report Presented To: C2 Design Group June 5, 2020 ES #19099 Prepared by: Engineered Solutions 0 0 0 0 646 Plank Road #104 0 0 0 0 Clifton Park, New York 12065 0 0 0 0 0 www.engineered-solutions.net 0 0 0 0 518.280.2410 engineeredsolutions SARATOGA OFFICE BUILDING Carbon Emissions Report June 5, 2020 TABLE OF CONTENTS 1 Introduction 2 2 Proposed Systems 2 3 Emissions Calculations & Results 3 4 Conclusions & Recommendations 4 5 Appendix 5 Project #19099 Page 1 of 5 engineeredsolutions SARATOGA OFFICE BUILDING Carbon Emissions Report June 5, 2020 Introduction: In April of 2019, New York City passed an ambitious piece of legislation that is focused on dramatically decreasing carbon emissions from buildings within the city. NYC Local Law 97 of 2019 requires large and medium sized buildings to reduce their emissions by 40% before 2030, and 80% by 2050. Anticipation of this law expanding to the rest of the state and an eye towards environmental friendliness, an analysis has been performed on the proposed Saratoga Office Building that will be located at 269 Broadway, Saratoga Springs NY 12866 to project carbon dioxide emissions. The results are as follows: Proposed Systems: The building, which consists of 106,700 square feet of office space and 41,600 square feet of parking garage, shall be served by the following building systems: • LED lighting will be provided throughout the building. • Building mounted exterior lighting. • A water source heat pump system to provide heating and cooling to the building. • High Efficiency, condensing gas fired hot water heating plant to provide heat to the system. • A new Adiabatic Fluid Cooler for building heat rejection. • (2) energy wheel type heat recovery units with gas fired heating and DX cooling with hot gas reheat to provide neutral, dehumidified ventilation air to the building. • A new direct digital temperature control system. • A dedicated exhaust/ventilation system will be provided for the parking garage. • In floor radiant heat to temper the parking garage. Project #19099 Page 2 of 5 engineeredsolutions il SARATOGA OFFICE BUILDING Carbon Emissions Report June 5, 2020 • (2) Centrifugal exhaust Fans for Toilet Room exhaust. • High Efficiency, Gas fired Condensing Domestic Water Heater system. Emissions Calculations & Results: The building was entered into Trane Trace 700 Load Calculation program, including, but not limited to; location, envelope information, occupant and office equipment data, scheduling, and proposed equipment efficiencies. As the plans currently only reflect a building shell with limited detailing of bathrooms, stairwells, and an elevator, some assumptions were made as follows: • Excluding the mercantile area, the building will contain typical office occupant density as calculated per the 2020 New York State Mechanical Code (NYSMC). • Excluding the mercantile area, the building will contain only typical office equipment, i.e. computer workstations, copiers, kitchenette equipment, etc. • Excluding the mercantile area, the building will operate with typical office occupant schedules, with the building starting to be occupied around 7:00 am, being fully occupied from 8:00 am until 5:00 pm, and then people filtering out after 5:00 until the following day. • There is no potable water consumption beyond the toilet rooms presently shown in the shell drawings. From the entered data, Trace 700 calculated an annual energy consumption for the electrical usage, natural gas for heating, and natural gas for potable water. Utilizing the greenhouse gas coefficients of energy in paragraph 28-320.3.1, an anticipated value for carbon dioxide productions in tons of CO2 from the structure at 269 Broadway, Saratoga Springs NY 12866 was generated. That number was then compared to the building emissions limits based off square footage and an occupancy group of B from paragraphs 28-32.3.1, 28-320.3.2, and 28-320.3.4 to determine compliance. Project #19099 Page 3 of 5 engineeredsolutions SARATOGA OFFICE BUILDING Carbon Emissions Report June 5, 2020 The calculation outputs are as follows: CARBON EMISSIONS CALCULATIONS Building Sq.ft. 148,300(including parking garage) Emission Limits 2024-2029 0.00846 tCO2e/sf paragraph 28-320.3.1,2 Emissions limits 2030-2034 0.00453 tCO2e/sf paragraph 28-320.3.2,2 Emissions limits 2035-2050 0.0014 tCO2e/sf paragraph 28-320.3.4,2 Electrical gas consumption 0.000288962 tCO2e/KWh paragraph 28-320.3.1.1,1 Natural gas consumption 0.00005311 tCO2e/kbtu paragraph 28-320.3.1.1,2 Electrical Usage Gas Usage Allowable Trace 700 Values Emissions 2024 2030 2035 kwh tCO2e Therm kbtu tCO2e (tCO2e) until until until 2029 2034 2050 Electrical Usage 1,734,822.0 501.3 -- Heating Gas Usage -- 5,960 596,000 544.8 1254.6 671.8 207.6 43.5 Domestic Gas Usage -- 2,230 222,960 Conclusions & Recommendations: Based off of the analysis performed, including all available data and assumptions made, the building is projected to be compliant with NYC Local Law 97 of 2019 until the year 2034. When we near 2035, it is recommended that another analysis be performed on the building, as there is likely to have been alterations and changes to the floorplans, tenants, and equipment, as well as actual utility usage information available for analysis. 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