2022-12-14-IEA-2022年可再生能源-2027年的分析和预测_159页_4mb

Renewables 2022: Analysis and Forecasts to 2027 (Summary)

Executive Summary

The IEA's "Renewables 2022" report highlights an unprecedented acceleration in renewable energy deployment due to the global energy crisis stemming from the Ukraine invasion. The main-case forecast projects global renewable capacity to increase by 2,400 GW between 2022 and 2027, nearly 85% faster than the previous five-year expansion. Renewables will dominate electricity generation by the early 2020s, accounting for over 90% of global electricity capacity additions, with solar PV surpassing coal by 2027. Despite these gains, challenges remain in permitting, grid infrastructure, supply chain constraints, and policy uncertainty—especially in Europe and emerging economies. New policies, particularly the US Inflation Reduction Act, EU REPowerEU plan, and India's Production-Linked Incentives, are accelerating growth but may also create supply imbalances for critical materials like polysilicon.

Chapter 1: Renewable Electricity

Global renewable capacity addition reached record highs in recent years, with over 60% driven by solar PV and wind. China is the largest contributor, followed by the European Union, US, and India. Key trends:

• Solar PV accounts for 60% of total renewable capacity expansion.
• Onshore wind additions are constrained by permitting delays and grid issues.
• Offshore wind growth accelerates due to supportive policies, especially in Europe, US, and China.
• Competitive auctions surged in 2022, awarding record capacity, while supply chain disruptions increased costs.

Europe leads in distributed solar PV deployment due to favorable retail electricity prices and policies. However, permitting bottlenecks and grid constraints hinder progress. The US saw deployment delays from supply chain issues but is poised for growth under IR Act incentives. India aims for 500 GW by 2030, boosted by auctions and PLI schemes, though DISCOM payment issues persist.

Chapter 2: Transport Biofuels

Biofuel demand growth slowed in 2022 (down 25%) but remains critical for decarbonizing transport. Renewables-based diesel and biojet fuel expansion is accelerating, driven by climate policies and energy security concerns.

Key developments:

• US tax credits under the Inflation Reduction Act support SAF production globally.
• Europe strengthens blending targets and SAF mandates post-Fit for 55.
• The EU REPowerEU plan pushes for 45% renewable energy in transport by 2030.
• China and Brazil lead ethanol production, while Indonesia boosts biodiesel use.

Challenges:

• Vegetable oil feedstocks face crunches due to high demand.
• Biodiesel prices surged in several countries, reducing blending mandates in Brazil, Finland, and Sweden.
• Feedstock availability could limit renewable fuel expansion unless waste streams (e.g., UCO) are prioritized.

Chapter 3: Renewable Heat

Renewable heat consumption increased, but insufficient deployment prevents it from containing fossil fuel reliance. Modern renewables fuel consumption jumped 130% in 2021–2022, mainly from electricity and heat pumps.

Key trends:

• Electric heat pumps dominate (especially in Europe) and industrial electrification potential.
• Bioenergy remains a significant source for heating, particularly in industrial processes.
• District heating using solar thermal is expanding, especially in China.

Major barriers:

• Grid constraints for heat pumps.
• Policy gaps and regulatory hurdles in many regions.
• Biofuel feedstock challenges.

Chapter 4: Trends to Watch

Four critical trends affect renewable scaling:

• EU REPowerEU Ambitions: Member states are falling short of rapid renewable expansion targets for electricity, transport, and heat. Faster deployment requires more streamlined permitting and transmission upgrades.

• Windfall Profit Levies: European nations may tax renewable energy companies disproportionately, potentially harming investment attractiveness. Regulatory inconsistencies create uncertainty for investors.

• PV Manufacturing Diversification: US, EU, and Indian policies aim to shift production away from China, but output costs are not yet competitive. A supply glut risk exists if China maintains dominant manufacturing.

• Avoiding Biofuel Feedstock Crunch: High bioproducer demand strains vegetable oils and wastes. Innovation (using residues like UCO) and sustainable sourcing are crucial to meet decarbonization goals.

Summary Per Country/Region Comparison (Selected):

• China: Rapid wind and solar deployment due to supportive five-year plans; grid upgrades lagging behind.
• EU: Regulatory complexities and slow permitting limit expansion; REPowerEU focuses on energy security and transport fuel goals.
• US: Inflation Reduction Act boosts long-term certainty for renewables and hydrogen; face permitting delays and trade investigations.
• India: Aggressively increasing renewable capacity via auctions and subsidies; DISCOM payment issues hamper progress.
• Indonesia: Achieving 30% biodiesel blending via state mandates; growth limited by supply chain constraints.
• Brazil: High ethanol blending via RenovaBio, deferred biodiesel targets amidst energy security needs.

Acknowledgements and Contributors

The IEA expresses gratitude to numerous governments, organizations, and experts for data provision and analysis support, focusing on collaborative long-term energy security solutions.

This summary captures the IEA's 2022 assessment, organized for rapid comprehension. For detailed data or charts, refer to the full report.