MFRED 2019-2021 (public file, 15/15 aggregate version): 10 second interval real and reactive power in 390 US apartments of varying size and vintage, including Covid-19 pandemic-related changes in consumption patterns

10-second interval electricity data (real and reactive power) of 390 apartments located in >12 residential buildings in New York City (Jan 2019 - Dec 2021), published at level of 15 aggregated apartments per trace ("15/15 rule"). In line with stay-at-home and/or work-from-home patterns prompted by the pandemic, annual average load per apartment increased from 343 Watt in 2019 to 360 Watt in 2020, and then fell again to 347 Watt in 2021. This was accompanied by delayed load ramp-up during early morning hours, indicating changes in diurnal profiles, as well as an increase in phase angle, indicating higher portions of capacitive loads such as routers, computers, and other electronics. Files attached with this dataset cover 2020 and 2021 data. Data for 2019 as well as comprehensive explanations of the dataset can be found in Meinrenken et al. (doi.org/10.1038/s41597-020-00721-w), which is attached. Total number of files attached: 10.