Emergency reserves are being used to maintain system reliability. The AESO issued a Grid Alert at 4:18 p.m. There was little wind, resulting in minimal wind energy available.Īdd to that some warmer weather than normal for this time of year - and demand spiked.A generator went down at a gas power plant.intertie, the transmission line connecting both provinces. There was a planned outage for maintenance of the Alberta-B.C. Power companies pull in nearly five times the profit during winter rate spikeīut the perfect storm of events combined this week to add a significant strain to the province's power supply.Alberta needs a greener grid but access fees could swamp us if we don't fix the system.The AESO says the last grid alert happened in January, and rolling blackouts haven't happened for a decade. Schaffer, who specializes in studying the province's power grid, says these dips into emergency reserves don't happen often. And at that point, what you're doing is you're chewing through the emergency reserves," said Blake Schaffer, assistant professor in the department of economics at the University of Calgary, in an interview on the Calgary Eyeopener. "It got all the way up to Emergency Alert 3, which is the highest level alert. It notifies customers, both industrial and residential, in hopes of avoiding the use of more serious measures, such as rolling blackouts. The Alberta Electric System Operator (AESO) says a grid alert is issued when the power system is under stress. on Wednesday, lasting for about two hours each. Alberta experienced two grid alerts this week, leading the province's electricity operator to dip into emergency reserves and urge industries and residents to lower their electrical consumption.
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