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Irving Oil is expanding hydrogen capacity at its Saint John, N.B., refinery in a bid to lower carbon emissions and offer clean energy to customers. 

The family-owned company said Tuesday it has a deal with New York-based Plug Power Inc. to buy a five-megawatt hydrogen electrolyzer which will create two tonnes of hydrogen a day — equivalent to fuelling 60 buses with hydrogen — using electricity from the local grid. 

Hydrogen is an important part of the refining process as it's used to lower the sulphur content of petroleum products like diesel fuel, but most refineries produce hydrogen using natural gas, which creates carbon dioxide emissions.

"Investing in a hydrogen electrolyzer allows us to produce hydrogen in a very different way," Irving director of energy transition Andy Carson said in an interview. 

"Instead of using natural gas, we're actually using water molecules and electricity through the electrolysis process to produce ... a clean hydrogen."

Irving plans to continue to work with others in the province to decarbonize the grid and ensure the electricity being used to power its hydrogen electrolyzer is as clean as possible, he said. 

New Brunswick Power's electrical system includes 14 generating stations powered by hydro, coal, oil, nuclear and diesel. The utility has committed to increasing its renewable energy sources.

Irving said it will be the first oil refinery in sa¹ú¼Ê´«Ã½ to invest in electrolyzer technology. 

The company said its goal is to offer hydrogen fuelling infrastructure in Atlantic sa¹ú¼Ê´«Ã½. 

"This kind of investment allows us to not just move to a cleaner form of hydrogen in the refinery. It also allows us to store and make hydrogen available to the marketplace," Carson said. 

The hydrogen technology will help Irving "unlock pent up demand for hydrogen as an energy transition fuel for logistics organizations," he said. 

This report by The Canadian Press was first published July 12, 2022.

Brett Bundale, The Canadian Press