非洲电力部门：可再生能源规划和前景（英文版）_44页-1mb

Summary of "Africa Power Sector: Planning and Prospects for Renewable Energy"

Core Content

This report provides a synthesis of IRENA's analysis on the prospects for renewable energy deployment in Africa's power sector by 2030. It is based on six previously prepared IRENA studies, one covering the continent as a whole and five analyzing specific regions. The report explores the potential of renewable energy resources, including solar, wind, hydro, geothermal, and biomass, and evaluates the economic and technical feasibility of integrating these into power systems across different regions.

IRENA used the System Planning Test (SPLAT) model, developed in collaboration with the International Atomic Energy Agency (IAEA) and the Royal Institute of Technology (KTH), to assess renewable energy potential and cost trends. The SPLAT model allows for the analysis of regional power systems and the evaluation of different policy scenarios, including renewable-promotion and limited-renewable deployment.

Main Points

Renewable Energy Potential

• Solar PV: The continent has a technical potential of 300,000 GW, with most countries ranging from a few thousand to tens of thousands of GW.
• Wind: Total technical wind potential is above 7,000 GW, with most African countries having lower quality wind resources (capacity factor 20-40%).
• Concentrated Solar Power (CSP): Technical potential is about half that of solar PV. Some West African countries have no CSP potential.
• Hydro: Installed capacity was 26 GW in 2011, with another 20 GW under construction. Additional capacity of 50-125 GW is planned.
• Biomass: Woody biomass and sugarcane are the main sources. Surplus forest for power generation is limited, but processing and logging residues offer 12-20 GW of potential.

Renewable Generation Cost Prospects

• IRENA's renewable-energy costing database includes data from over 9,000 utility-scale projects.
• There has been a significant decline in renewable energy costs in recent years, which underscores the importance of policy support for further cost reductions.
• Regional efforts, such as streamlining regulations and logistics, can help reduce investment costs.

Regional Power Pools and Assessments

• The analysis is based on five regional power pools: COMELEC (North), WAPP (West), PEAC (Central), EAPP (East), and SAPP (South).
• Each region has its own SPLAT model, with some countries participating in more than one pool, leading to duplications in the data.

SPLAT Model Features

• The model includes country-specific power capacity expansion, best available data on renewable potential and costs, and urban and rural demand.
• It accounts for decentralised generation options, regional interconnections, and compatibility with other tools for project identification.
• The model supports capacity building and initiatives such as the Africa Clean Energy Corridor (ACEC) and REmap 2030.

Key Information

Regional Reports

• West Africa: Analysis includes current situation, demand projection, regional energy sources, and scenario results. Key findings include the potential for solar and wind, and the role of regional trade.
• Southern Africa: Highlights the importance of the Southern African Power Pool (SAPP) and the use of existing master plans. The region has a significant hydro potential.
• East Africa: Focuses on the East African Power Pool (EAPP) and includes detailed scenarios for renewable promotion and integration.
• Central Africa: Emphasizes the need for regional interconnection and the role of the Central African Power Pool (CA-PEAC). The region has high hydro potential.
• North Africa: Highlights the role of the COMELEC and the potential for solar and wind. The region is also involved in the REmap 2030 initiative.

Investment Needs

• The report outlines investment requirements for renewable energy-oriented and limited scenarios.
• These needs are based on the least-cost capacity expansion approach and consider various factors such as demand, resource availability, and transmission infrastructure.

Policy Implications

• Planning is essential for effective energy infrastructure development and achieving sustainable development goals.
• The SPLAT model helps in creating a predictable environment for investment and supports long-term master plans.
• The model is used for scenario analysis, helping policy makers evaluate the impacts of different assumptions and policy options.

Conclusion

This report provides a comprehensive overview of renewable energy prospects in Africa, highlighting the vast potential of solar, wind, hydro, and other renewable resources. It emphasizes the importance of policy support, regional cooperation, and capacity building in realizing these opportunities. The SPLAT model serves as a valuable tool for country-level planning, scenario analysis, and investment decision-making in the African power sector.