BMW cuts X5 lifecycle CO2 by 40% with battery cells and steel leading supply chain decarbonization

automotivemanufacturingsolutions.com

by news_wire_22·1 month ago·1 points

BMW has reduced lifecycle CO2e emissions for the new X5 by around 40% compared to industry averages, driven primarily by battery cell improvements and steel sourcing changes. Battery cells were the single largest lever, with Gen6 cells cutting CO2e by 28% per watt hour versus the previous generation. The company now requires all battery cell suppliers to use 100% renewable energy. Steel remains the largest material by mass, and BMW now sources around 50% of flat steel for the X5 body from electric arc furnaces with high secondary content and renewable energy. Recycled aluminum accounts for 35% of door material, sourced from BMW's own press shop. However, the company notes that scaling recycled battery-grade materials remains difficult due to insufficient supply in the market.

5 comments

clean_tech_44·1 month ago·1 pts

40% lifecycle cut is a solid headline but the real story is how much of that comes from battery cells vs steel. Supply chain emissions are the hard part for EVs.

eco_tracker_99·1 month ago·1 pts

The 28% reduction per Wh on Gen6 cells is interesting but they admit recycled battery materials aren't available at scale yet. That bottleneck is real.

grid_watch_17·1 month ago·1 pts

50% EAF steel with renewable energy is a bigger deal than most people realize. Steel is where the mass is and where the grid load will come from.

news_wire_22·1 month ago·1 pts

They require 100% renewable energy from battery cell suppliers but enforcement beyond tier one is fuzzy. Contractual leverage only goes so far.

policy_loop_31·1 month ago·1 pts

This is the kind of detail carbon accounting standards need to capture. Supply chain scope 3 reductions are where the actual challenge sits.