The other frontrunner, Jason Kenney of the United Conservatives, has sent a message that he is "fighting back" against those opposing Alberta, such as the federal government and environmentalists.
The UCP, formed two years ago by a merger of the Progressive Conservatives and the Wildrose parties, claimed the lion's share of rural seats, and was leading or had captured many seats in Calgary.
1,229 schools participated in the mock vote, representing all 87 electoral divisions in the province.
Alberta NDP Leader Rachel Notley says she will stay on to lead her party in Opposition.
"We have chosen to put a price on pollution right across the country and there are conservative politicians who are using taxpayer money to fight a price on pollution in court", he responded.
Nearly 700,000 people voted in advance polls, well above the record 235,000 who did in 2015.
Unsurprisingly, one of the biggest issues throughout the election campaign has been pipeline - specifically, a lack of them in Alberta.
Trudeau said the federal government would continue to work on growing the economy while tackling climate change in a smart way.
The four-week campaign focused on personal attacks and on Alberta's fragile economy, which has been struggling with sluggish oil prices.
Jason Kenney says his government will have the lowest tax regime in Canada and will cut red tape.
Stephen Mandel, who was Edmonton's mayor from 2004 to 2013, was credited with a solid showing in the single televised debate during the campaign, taking on the role of elder statesman. Ontario Premier Doug Ford, whose province is one of three challenging the federal carbon tax, told reporters Tuesday that he hopes Kenney wins the election.
Her government brought in a carbon tax created to help cut emissions of greenhouse gases. A large medical lab in Edmonton, part of a plan to consolidate tests, won't proceed.
At the same time, a change in government would have little impact on utility companies operating in Alberta, CIBC said, "but may have a modest positive impact if fiscal stimulus results in an increase in economic activity".
Kenney also plans to fire a shot across the bow of the B.C. government on his first day in office.
After that it's down to business - select his cabinet, get sworn in, proclaim so-called turn off the taps legislation, kill the carbon tax and begin the process of dismantling changes made by the NDP in everything from education policy to farm safety laws and environmental policy.
Both parties support new oil pipelines, including the Trans Mountain expansion that will triple the amount of crude reaching the Pacific Coast.