Coastal GasLink is a 670-kilometre conduit currently under construction.
Following one-year delay, oil could be flowing in new segments of the pipeline by mid-2022.
Small and unreliable contribution to the community’s power needs didn’t justify the cost.
New deadline will give the government more time to complete its consultations with Indigenous groups.
Report says moving more oil by rail is also not a “perfect substitute” because doing so is more expensive and complex.
NEB says economic benefits outweigh environmental concerns.
Spokesman says the federal government has never done a proper climate review of the Trans Mountain project.
Trudeau has said many times the pipeline is going to be built.
The NEB hearings will consider only the question of whether the British Columbia Oil and Gas Commission had jurisdiction to issue approvals for the project.
Blaine Higgs said he discussed Energy East two weeks ago with Prime Minister Justin Trudeau.
The new hearings are being held after the Federal Court of Appeal quashed the original approval for the expansion.
Price discounts are costing the Canadian economy as much as $80 million per day.
Total Canadian electricity generation will increase by about 12 per cent from 2017 to 2040.
Accepting submissions until Oct. 29 on whether the 670-kilometre pipeline should be considered a federal project.
One critic says approval process is tainted by the fact that the government insists the project it now owns will be built no matter what.