Tribeca Green is the next green high-rise apartment building scheduled for completion in Battery Park City. The project is striving for LEED-Gold, and like all new projects in Battery Park City, complying with the Battery Park City Authority\'s (BPCA) rigorous green building requirements. This last year, the BPCA updated their green building requirements to include the compilation of an Annual Energy Report, summarizing the building\'s energy and water use over the year, and monitoring specific energy and water saving measures. Though our project -scheduled for initial occupancy late this Spring- is not subject to the updated requirements, the developer asked the BPCA for an explicit list of the systems an Annual Energy Report should include so we could evaluate the proposal. The BPCA responded with the following list, compiled by the green building consultant working on most of the new BPCA buildings, and developed in collaboration with the commissioning agent, mechanical contractor and design engineer of our job. The intent of the Authority-led group was to meet the intent of MRc5, but address the specific systems of a residential building (e.g. tenant controlled lighting, heat pumps), particularly a BPCA building (e.g. blackwater treatment, humidification, microturbine). As the Construction Manager shepherding Tribeca Green\'s LEED process, we would like to propose the following to LEED as a residential building alternative compliance path to MRc5: 1. Lighting: a. Occupancy sensors in stairs and corridors through metering of electric panel 2. Constant and variable motors a. Rooftop AHU\'s b. Garage fan c. Other exhausts fans not smaller than 5 hp (kitchen, blackwater system) d. DHW booster pumps Note: Fans in the terminal devices have a fractional horsepower 3. VDF operation a. VFDs in heat pumps\' condenser loop b. Cooling tower fans 4. Efficiency a. Cooling tower ECWT, LCWT and ambient Dry and Wet bulb temperatures b. Monitor room temperatures and heat pump usage hourly with current transformers (CTs) in sample group (3-5) of apartments 5. Cooling load a. Heat pump circulating loop BTU (hourly and cumulative) 6. Air and water economizer a. Seasonal waterside economizer 7. Air distribution static pressures and ventilation a. Static pressure sensors in supply b. CO2 and VOC (0-2000 ppm) monitoring of public spaces with AirOX sensors. c. CO monitoring in garage and associated exhaust fans. d. Monitoring of humidification in sample group (3-5) of apartments 8. Water heating efficiency a. Heat recovered from microturbine for DHW 9. Building-related process energy systems and equipment a. Base building total electrical use b. Tenant space total electrical use c. Photovotaic system (hourly and totalized kW and kWh) d. Microturbine KWh output e. Water treatment plant electricity use 10. Water use a. Total amount of black/greywater treated (used for cooling tower make-up and toilet flushing) b. Water used for cooling tower make-up (difference of "a" from "b" provides water used for toilet flushing) c. Water moved from stormwater storage tank (collected for irrigation) to blackwater treatment system (for cooling tower make-up and toilet flushing) d. (Storm)water used for irrigation Would the above list of systems, in concert with a Measurement and Verification Plan per IMPVP standards, satisfy the requirements of this credit?
The list of metered systems would seem to comply with the metering requirements of the credit. The specific metering requirements however, cannot be fully evaluated without the M&V Plan and more information about the IPMVP Option selected. This list would not be considered as a separate residential building alternative compliance path since the majority of end-uses which are addressed are the same as any commercial project.