全球可再生能源发电成本持续降低

Core Insights - Renewable energy is not only cost-competitive compared to fossil fuels but also reduces dependence on international fuel markets and enhances energy security [1][2] - The business case for renewable energy is stronger than ever, driven by technological advancements and improved supply chains, although short-term challenges remain [2][5] - International cooperation is essential to protect the achievements of the energy transition, ensuring open and resilient supply chains, and establishing stable policy and investment frameworks [5] Cost Competitiveness - In 2024, solar photovoltaic power is expected to be 41% cheaper than the lowest-cost fossil fuel electricity, while onshore wind projects will be 53% cheaper [1] - Onshore wind remains the most affordable new renewable energy source at $0.034 per kilowatt-hour, followed by solar photovoltaic at $0.043 per kilowatt-hour [1] - The addition of 582 gigawatts of new renewable energy capacity in 2024 is projected to save approximately $57 billion in fossil fuel costs [1] Structural Challenges - Rising costs in Europe and North America are influenced by structural challenges such as permitting delays and limited grid capacity, while regions like Asia, Africa, and South America may see significant cost reductions due to their renewable energy potential [2] - Integration costs are becoming a new constraint for renewable energy deployment, particularly in G20 and emerging market countries, necessitating accelerated grid investments [3] Financing and Investment - Financing costs are a critical factor in project feasibility, with high capital costs in many developing countries significantly increasing the levelized cost of electricity (LCOE) for renewables [3] - Stable and predictable revenue frameworks are crucial for reducing investment risks and attracting capital, with tools like Power Purchase Agreements (PPAs) playing a key role [2] Technological Advancements - Battery storage systems and hybrid systems combining solar, wind, and storage are increasingly vital for integrating intermittent renewable energy [4] - The cost of utility-scale storage systems is projected to reach $192 per kilowatt-hour by 2024, a 93% decrease since 2010, driven by manufacturing scale and technological improvements [3] Future Outlook - The total savings from all operational renewable energy projects in 2024 are estimated to reach $467 billion in fossil fuel costs [5] - The transition to renewable energy is irreversible, but its pace and equity depend on today's choices regarding international cooperation and investment frameworks [5]