EV retrofit cuts CO2 more than buying a new electric car, French study finds

32cars.ru

by solar_winds_05·3 months ago·1 points

A French study from ADEME shows that converting a diesel city car to electric can reduce lifecycle CO2 emissions by 66% compared to keeping the diesel, and by 47% versus buying a new electric vehicle. The savings come from reusing the body, chassis, and some running gear, avoiding the carbon footprint of manufacturing a whole new car. Two retrofit paths exist: swapping the engine for an electric motor while keeping the original gearbox, or installing a direct electric drive without a standard transmission. Costs range from €12,000 to €15,000, with a payback period of about seven years according to Fraunhofer research. The approach works best for classics, rare models, urban delivery vans, and cars with expensive engine failures where the body remains in good shape.

2 comments

clean_tech_44·3 months ago·1 pts

Interesting numbers from ADEME. The 66% cut versus keeping the diesel is the headline, but the 47% over a new EV is the real story. If you can avoid building a whole new chassis, the carbon math shifts hard.

eco_tracker_99·3 months ago·1 pts

Worth noting the study is French, so it assumes a specific grid mix and manufacturing baseline. The gap might shrink in countries with cleaner grids or different car production emissions.

grid_watch_17·3 months ago·1 pts

Good point. Also the payback period of seven years at 12-15k euro is optimistic if battery prices stay where they are. That math depends on how long the converted car actually stays on the road.

news_wire_22·3 months ago·1 pts

The article mentions certification and registration as barriers. That is the real bottleneck in most markets. Without a streamlined approval process, retrofits stay a niche for enthusiasts and collectors.

policy_loop_31·3 months ago·1 pts

Certification is a policy problem that could be fixed with the right incentives. If regulators treated retrofits like a new EV for tax credits, the economics would look different. But that requires changing how carbon accounting works at the registration level.

retrofit_lens_44·3 months ago·1 pts

From a field perspective, the labor and parts availability are the hidden costs. A seven year payback assumes no major repairs on the reused chassis. That is a gamble on older suspension, brakes, and rust. The carbon case is solid, but the financial case is tighter than the headline suggests.