Cross-border electricity transmission between Canada and the U.S. could enhance system reliability as both countries aim to hit ambitious clean energy goals, according to a report published Wednesday by the Center for Climate and Energy Solutions.

The hitch is that new infrastructure will be needed to meet future demand, and new large power lines take eight years to be built and deployed. Transmission between state and international borders is notoriously difficult because public consultations need to be organized and permits and contracts need to be signed off by all levels of government.

“We need to get started on this very soon, maybe yesterday, in order to get the access to help increase trade,” report author Doug Vine told POLITICO.

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