![]() That was far less than their decrease in occupancy. ![]() Offices cut their site energy use by 14 percent in 2020 compared to 2019. Occupancy and energy use fell in offices and hotels.NYC site energy dropped 9 percent but resulted in only a 7 percent emissions decline because the electricity buildings used got dirtier in 2020. Indian Point Energy Center’s Unit 2 was shut down in April 2020, and its roughly 7,500 MWh output of zero-carbon electricity was mostly replaced with gas-fired generation.We found that occupancy changed in vastly different ways depending on building type and location. Patterns in people’s movement can be difficult to track, so we used a variety of methods, like comparisons of water use, to estimate how many people were in these buildings. Specifically, changes to building occupancy-more time spent at home, less in the office, and significant migration out of certain NYC neighborhoods-drove most of the drop in energy use. The 2020 benchmarked energy and water use data from NYC’s large buildings detail these changes and their likely causes. That pause in activity resulted in a massive drop in energy use and emissions citywide. Employers across the city and state adopted similar safety measures, dramatically changing the lives of New Yorkers. In March 2020, the onset of the coronavirus pandemic forced Urban Green to end in-person events and our staff began working from home. NYC site energy use and CO 2 emissions both decreased in 2020.
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