COVID-19 pandemic, according to the association representing the province’s engineers.The Ontario Society of Professional Engineers released an updated analysis today that found Ontario wasted a total of 6.5 terawatt-hours of clean electricity last year, which it says is enough to power 720,000 average-sized homes for a year.The organization says that’s a 12-per-cent increase in wasted electricity compared with 2018 — and it should go up further this year in light of the pandemic.It says Ontario’s electricity system is built to support businesses operating between 9 a.m.