In 2017, Rothco retrofitted our headquarters’ inefficient lighting fixtures and lamps to energy-saving LED lighting. We upgraded the lighting system throughout the building, replacing more than 1,040 fluorescent lighting fixtures and incandescent light bulbs with more energy-efficient lighting and installing nearly 650 occupancy sensors. With lighting accounting for the largest portion of the energy used in commercial buildings, typically around 25-30 percent (according to the U.S. Department of Energy), i t is estimated Rothco will save more than 371,041 kWh a year.