2010年-世界发展银行全球_Central_American_Regional_Programmatic_Study_for_the_Energy_Sector___General_Issues_and_Options_-_Sector_Overview_183页_3mb

Central America Regional Programmatic Study for the Energy Sector Summary

Core Content

This report, prepared by the World Bank Energy Unit in November 2010, presents a comprehensive analysis of the energy sector in Central America, focusing particularly on the power subsector. It is part of a series of studies aimed at supporting the development of a reliable and efficient energy system that can serve as a foundation for economic growth in the region.

Main Issues and Options

1. Regional Integration and SIEPAC

• Central America has a long tradition of regional integration, including the Central American Free Trade Agreement (CAFTA) with the United States.
• The Sistema de Interconexión Eléctrica para América Central (SIEPAC) is a major energy integration project expected to link all six countries by mid-2010.
• SIEPAC can improve energy security, reduce costs, and increase efficiency through economies of scale and shared reserves.
• Integration alone is not sufficient; it must be accompanied by addressing physical, regulatory, institutional, and political challenges.

2. Energy Sector Overview

• The energy sectors of Central American countries share similarities due to common geographic features such as mountain ranges and tectonic activity.
• Biomass accounts for 67% of the region's total primary energy supply (TPES), with fossil fuels contributing 5% and renewables (hydro, geothermal, wind) 28%.
• The residential sector is the largest energy consumer, accounting for 43% of total energy use, followed by transport (29%) and industry (21%).

3. Electricity Consumption and Access

• Electricity consumption per capita in the region averages 780 kWh/year, with significant variations among countries.
• Costa Rica and Panama have the highest access rates (99% and 98%, respectively), while Honduras and Nicaragua have rates of 70% and 72%, respectively.
• Rural access is much lower: 45% in Honduras and 42% in Nicaragua.
• Approximately 8 million people in the region lack access to electricity, highlighting the need for continued electrification programs, including grid extension and distributed systems like solar PV.

4. Oil Dependence and Volatility

• All countries in the region, except Guatemala, rely heavily on imported oil for energy needs (over 50%).
• The region's oil bill increased from US$3 billion in 2000 to US$11 billion in 2008, representing 4–8% of GDP.
• The power sector's reliance on oil-based generation (thermal) has increased due to lower oil prices in the 1990s, but this has made the sector vulnerable to oil price fluctuations.

5. Renewable Energy and Policy

• Renewable energy accounted for over 85% of electricity generation in the region in 1990, but this share has declined to 28% in Nicaragua and 92% in Costa Rica by 2007.
• The decline is attributed to institutional and policy shifts favoring fossil fuels, as well as environmental and social pressures limiting hydropower development.
• Most countries have introduced fiscal and market-based incentives for small-scale renewable generation, but these are unlikely to have a significant impact in the short to medium term.
• Attracting private investment in large-scale projects (hydro, wind, geothermal, and biomass) is essential for substantial diversification of the energy matrix.

6. Power Sector Challenges

• The power sector faces several critical issues, including:
  • Continued reliance on traditional biomass energy, especially in rural areas.
  • Electricity shortages due to high demand growth, low reserve margins, and droughts.
  • Financial sustainability concerns due to oil price volatility.
  • Social and political tensions around electricity pricing and subsidies.
  • Inefficiencies in production and delivery, with high electricity losses in most countries.
  • Weak performance and inadequate governance of state-owned enterprises (SOEs).
  • Need for new electricity market rules and regulations.

7. Efficiency and Quality of Service

• Electricity losses are a major concern, especially in countries other than Costa Rica.
• Regulatory measures to address losses have had limited success.
• Quality of service has generally improved over the past 20 years, but more work is needed to ensure reliability and affordability.

8. Regulatory and Market Reforms

• Most countries have implemented reforms based on private participation, independent regulation, and competitive markets.
• However, high and volatile oil prices have led to large tariff increases, prompting government intervention and generalized subsidies.
• These actions have undermined the credibility of market reforms and the regulatory framework.
• They have also weakened the financial position of power companies and increased investment risks for private entities.

Key Information

• Energy Intensity: Around 143 toe per million dollars of GDP, which is lower than the U.S. (213 toe/$M) but comparable to OECD Europe (154 toe/$M).
• GDP per Capita: Approximately US$3,600 in the region, significantly lower than the U.S. (about 7 times higher).
• Energy Use per Capita: About 0.67 tons of oil equivalent (toe) in the region, compared to 1.1 toe in Latin America and the Caribbean (LAC).
• Electricity Consumption Growth: Increased by 100% over the past 20 years.
• Total Primary Energy Supply (TPES): Biomass dominates, with 67% of the supply.
• Oil Imports: In 2007, the region imported 110 million barrels of crude and oil products, with domestic production at 23 million barrels.

Conclusion

The report highlights the importance of regional integration through SIEPAC and the need for a coordinated approach to energy development. It emphasizes the challenges of oil dependence, the need for renewable energy expansion, and the importance of regulatory and institutional reforms to ensure the sustainability and efficiency of the power sector. The study also recommends the continuation and expansion of electrification programs and the development of a regional electricity market to better meet the subregion's energy needs.