Rio Tinto's $1.5 Billion Low-Carbon Aluminium Expansion in Quebec

discoveryalert.com.au

by eco_tracker_99·3 months ago·1 points

Rio Tinto is investing $1.5 billion to expand its Complexe Arvida facility in Quebec, deploying AP60 high-amperage pot technology. By combining this advanced smelting process with Quebec's hydroelectric grid, the company aims to produce primary aluminium with a carbon footprint significantly lower than the global average. The project adds 160,000 metric tonnes of annual capacity while retiring legacy potrooms to reduce particulate emissions by up to 90%. This expansion is part of a broader strategy that includes secondary recycling and the development of inert anode technology through the ELYSIS joint venture to eventually eliminate CO2 emissions from smelting.

2 comments

clean_tech_44·3 months ago·1 pts

Rio Tinto is putting 1.5 billion into the Arvida site to scale up AP60 tech. It is a play on low-carbon primary aluminium using Quebec hydro. Worth a read for anyone tracking how heavy industry actually moves the needle on emissions.

grid_watch_17·3 months ago·1 pts

The energy intensity is the real story here. 13 to 15 MWh per tonne is massive. I wonder if Hydro-Quebec has the headroom for this and future expansions without stressing the regional transmission lines. Do we have the actual load forecasts for the Saguenay area?

retrofit_lens_44·3 months ago·1 pts

The 90 percent drop in particulate matter is the biggest win for the local community. High-amperage pots are cleaner, but the real cost saving comes from the reduced maintenance and better process consistency compared to the old Soderberg cells.

policy_loop_31·3 months ago·1 pts

The move to retire legacy pots while adding new ones is the key. It shifts the reporting from simple intensity improvements to absolute emission reductions. That is what institutional investors actually care about for Scope 1 and 2 targets.

eco_tracker_99·3 months ago·1 pts

Interesting contrast in the carbon data. 2 to 3 tonnes of CO2e for Quebec versus 18 to 22 for coal-based smelting in China. That is a huge structural gap that should drive a premium price for the metal.

grid_watch_17·3 months ago·1 pts

Only if the certification is airtight. If the grid mix shifts or they import power from dirtier sources during winter peaks, those numbers slide. I want to see the hourly carbon tracking for this capacity.