And they are diverse, with very different ownership structures, financing options, rate structures, and regulation (table 1). The owners and operators of the US electrical system are numerous: more than 3,100 providers sell over 3.7 million gigawatt hours (GWh) of electricity worth over $375 billion to almost 150 million customers in the United States (APPA 2018). The electric power system has three principal components: generation, high-voltage transmission (moving the electricity efficiently from the point of generation to load centers), and distribution (supplying the electricity to customers) (figure 1). Future system reliability may be challenged, however, by the effects of climate change, increasing supplies of renewable energy, and potential cyberattacks. The country’s financial well-being, public health, and national security depend on it to be a reliable source of electricity to industries, commercial entities, residential facilities, government, and military organizations.Ĭonsidering the complexity and age of most of the equipment in the US power infrastructure, the lifetime reliability is extraordinary-and it has improved in the last ten years (NERC 2017). “We are preparing for tighter grid conditions that could develop if the province experiences extreme heat waves - this is similar to last summer and is the new norm for Ontario and many jurisdictions around North America,” said Andrew Dow of the system operator.The US power infrastructure is one of the largest and most critical infrastructures in the world. Ontario’s Independent Electricity System Operator (IESO) posted figures online Friday - as temperatures soared for the third day in a row - that peak demand was forecast to be 22,048 MW with 23,955 MW of power generation available from nuclear plants, hydroelectric, and natural gas-fired power plants and to a lesser extent from wind, solar and biofuel. New England and western states are prone to similar problems. “Under both normal and extreme weather conditions, Ontario may rely on imports and outage management for a significant number of weeks,” the report continued, stating shortages could reach 2,000 megawatts on sweltering days.
Lawrence interconnection with New York is down until the end of the year and “continues to impact import and export capacity.” Manitoba and Quebec, however, have power available.
The report said Ontario could see a “significant increase” in the need to import electricity from neighbouring provinces and states, but noted the province’s St. “Ontario is the only province in Canada that is rated an elevated risk that it can’t meet peak demand,” he said, blaming Premier Doug Ford’s government for axing 758 renewable energy projects shortly after taking power in 2018.Ĭlimate change means “we’re going to see more extreme weather that increases the chance we’ll have outages,” Tabuns added. “We have a grid in Ontario that is the envy of all jurisdictions in North America - one that’s clean, one that’s affordable and one that’s reliable and one that’s safe.”īut Tabuns said that optimism ignores some cautions in the report from the international regulatory authority, whose role is to assess reliability of the continent’s electricity systems, flag potential problems and spur regional energy systems to have contingency plans in place should troubles develop. “We’re making sure we’re hardening the infrastructure here to deal with some of the conditions the member is talking about,” Smith said in reference to the question from Tabuns (Toronto-Danforth). The cascading effects crippled Ontario and eight states for days, leaving 50 million people without electricity. 14, to be precise - will mark 20 years since a massive blackout hit northeastern North America, tripped by part of an Ohio power plant failing during heavy demand.
“Ontario has entered a period during which generation and transmission outages will be increasingly difficult to accommodate … for the foreseeable future.”Įnergy Minister Todd Smith tried to downplay concerns after New Democratic Party energy critic Peter Tabuns raised the possibility of brownouts or blackouts before the end of August. The heavily industrial Windsor-Essex area - where auto giant Stellantis has suspended construction of a massive electric vehicle battery plant while questions over government subsidies are sorted out - may not be able to get “sufficient supply,” adds the non-profit regulator’s summer reliability report. With the province in the grip of an early June heat wave in the last few days, the Atlanta-based North American Electric Reliability Corporation says extended refurbishments at nuclear power plants could result in a power pinch if the coming months prove hotter than usual, causing “extreme demand.” Ontario is singled out in an electricity regulator’s report warning two-thirds of North America is “at risk of energy shortfalls this summer” should temperatures spike.
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