2023-02-08-科尔尼-Polestar_and_Rivian_pathway_report_22页_1mb

Polestar and Rivian Pathway Report Summary

The report analyzes pathways for decarbonizing the global passenger vehicle fleet by 2050, stressing the urgency to align with the Paris Agreement’s 1.5°C target. Key elements include:

1. Methodology:

   • A model built on three principles: strong data foundation, full assessment of emission reductions, and balanced assumptions to avoid overestimation.
   • Key variables include life cycle emissions (production, use-phase, end-of-life) and fleet dynamics.
   • Three reduction levers are identified: Transition to ZEVs, Fossil-Free Energy, and Reduce Supply Chain Emissions.

2. Life Cycle Emissions:

   • BEVs have the lowest life cycle emissions; however, battery production dominates their initial costs. Use-phase emissions decrease over vehicle lifespan due to frontloading of fuel/electricity production emissions.
   • Future improvements assumed include fuel economy gains (e.g., 28% by 2050), electrification, and fossil-free energy transitions.

3. Global Fleets and Budgets:

   • The 2021 baseline shows the auto industry is on track to overshoot the 1.5°C budget by 2035–2050. By 2050, BEVs account for 42% of the fleet under aggressive transitions.
   • Actions include policy shifts (e.g., EU ban on ICE by 2035), renewable energy adoption, and supply chain decarbonization (e.g., low-carbon steel, aluminum, batteries).

4. Lever Impact:

   • Lever 1: Aggressive BEV adoption (“all levers”) could reduce overshoot from 74.6% to 0–25.4% by 2050.
   • Lever 2: Fossil-free energy transitions reduce use-phase emissions.
   • Lever 3: Supply chain improvements (e.g., recycling, material efficiency) are crucial for BEVs, though less impactful for ICEs.

5. Scenarios:

   • Scenario 1 (Most Aggressive): Full BEV adoption (2032) and fossil-free energy could nearly meet 1.5°C (50.5% overshoot).
   • Scenario 2 (Moderate): Less aggressive adoption still shows a 14.9% overshoot.
   • Scenario 3 (Least Ambitious): Overshoot exceeds 30%.

6. Conclusion:

   • Simultaneous action across all levers, including policy, technology, and circular economy measures, is required. The report emphasizes collaboration in scaling infrastructure, material production, and consumer engagement.

7. Key Actions:

   • Accelerate EV rollout, optimize charging, reduce material carbon intensity, invest in recycling, and transition manufacturing to renewable energy.

8. Data & Budget:

   • The global 2021 GHG budget is 500 GtCO2e. Inaction leads to budget exhaustion by 2035–2036.

The report underscores the feasibility of aligning the auto sector with climate goals but highlights the risks of inaction or fragmented efforts.