Interior to Lower Mainland Transmission

Transmission lines near Big Bar


British Columbia is growing, so is the demand for energy

The population and economy of B.C. are growing. Over the next 20 years, we project that the demand for electricity will grow by as much as 40 – 45 per cent. And much of that demand will come from the Lower Mainland and Vancouver Island, the most populated areas of the province.

What’s more, the changing patterns of our electricity use and aging equipment have put pressure on the grid.

The Interior to Lower Mainland (ILM) Transmission Project will enable more electricity to be delivered from areas where it is generated – in the Columbia and the Peace regions – to the Lower Mainland and Vancouver Island, ensuring that homes and businesses continue to receive clean and reliable energy.

Latest updates

  • Learn more about the project with our new video
  • As part of ongoing construction of the ILM Project, helicopters are being used [PDF, 351 KB] in some areas. All necessary permits and permissions have been obtained, and all work complies with Transport Canada requirements. Wherever possible, helicopters follow routes and schedules that minimize disturbances to residents.

A look at the Interior to Lower Mainland Transmission Line