2009年-世界发展银行全球_Vietnam_Power_Sector___Generation_Options_85页_2mb

Vietnam Power Sector: Generation Options Summary

Core Content

This document provides an in-depth analysis of Vietnam's power sector, focusing on generation options, fuel prices, technology choices, and policy considerations. It outlines the challenges and opportunities for expanding the power generation capacity to meet growing demand while balancing economic, environmental, and regulatory factors.

Main Objectives

• To inform decisions on technology choices for power generation.
• To inform energy and power sector policy reforms.
• To improve the power sector planning methodology.
• To guide the World Bank on its role in supporting Vietnam's power sector development.

Key Information

1. Domestic Resources

• Gas: Vietnam's gas resources are concentrated in the South. There are few prospects for significant natural gas finds in the North. The Gas and Petroleum Masterplan (GPMP) forecasts an increase in gas supply for power generation, but the exact availability remains uncertain.
• Coal: Domestic coal resources are insufficient to meet long-term demand, leading to a reliance on coal imports. PDP6 predicts a significant increase in coal use, from 5 million tons per year (mtpy) to 27.7 mtpy by 2020 and 39.4 mtpy by 2025.
• Hydro: Most conventional hydro resources have been developed. Future power needs in the North will likely be met by hydro imports and pumped storage.
• Renewables: Small hydro is a primary renewable energy source. Wind and other renewables are less developed and face challenges in data availability and cost competitiveness.

2. Fuel Prices

• Oil Prices: The World Oil Price is a key factor in determining the relative cost of thermal generation. Current domestic gas and coal prices are heavily subsidized.
• Natural Gas: Gas prices are expected to be influenced by international market conditions, particularly the price of LNG and the level of oil prices.
• Coal: Domestic coal prices are set by the government, while imported coal prices are expected to rise with international market trends.

3. Technology Options

• Coal: Various coal technologies are evaluated, including pulverized coal, CFB (circulating fluidised bed), coal blending, and IGCC (integrated gasification combined cycle). The efficiency of coal use is a major concern.
• Gas: Gas turbine-based power plants are considered, especially for short gestation projects. The use of natural gas is expected to grow due to its lower emissions compared to coal.
• Nuclear: Nuclear power is considered as an alternative for long-term energy needs, though it is constrained by technical and regulatory challenges.
• Renewables: Small hydro is the most viable renewable option. Wind, biomass, and other technologies are less developed and face economic and technical barriers.

4. Load Forecasts

• Vietnam's power demand is expected to grow at around 15% per year for the next few years, then tail off to about 10% by 2015.
• Accurate load forecasting is crucial for planning capacity additions, as different technologies have varying lead times (2-3 years for gas, 5-7 years for nuclear and hydro).
• Load forecasts have historically been inaccurate, with PDP5 underestimating and PDP6 overestimating demand.

5. The Baseline

• The baseline scenario for the power sector is based on the PDP6 plan, which includes expansion of coal, gas, and hydro generation, as well as a significant contribution from renewables.
• The baseline is expected to meet the growing demand but may require adjustments due to uncertainties in load forecasts and fuel availability.

6. Carbon Accounting

• GHG emissions from thermal projects are a major concern. Emissions from gas combustion are significantly lower than from coal.
• Life cycle emissions must be considered, including emissions from reservoirs and the entire production and consumption cycle.
• The reliability of life cycle calculations is important for assessing the true environmental impact of different generation options.

7. Alternatives to Supply Side Expansion

• Demand Side Management (DSM): DSM is a key strategy to optimize the system for least economic cost.
• Fuel Subsidies: Reducing subsidies for coal and gas is crucial for promoting more efficient and sustainable generation options.
• Renewables: Promoting renewables, especially small hydro, is important for achieving low carbon growth. However, the economic viability of other renewables like wind is questionable.
• Low Carbon Options: The document emphasizes the need to evaluate and promote low carbon technologies and policies to reduce emissions.

8. Conclusions

• The power sector in Vietnam must balance the need for reliable and affordable electricity with environmental sustainability.
• Technology choices, policy reforms, and improved planning methodologies are essential for achieving this balance.
• The World Bank's role in supporting Vietnam's power sector development is crucial, particularly in promoting efficient and sustainable generation options.

Key Challenges and Opportunities

• Energy Security: Ensuring a stable supply of fuel, especially coal, is a major challenge.
• Economic Efficiency: Balancing the cost of generation with the need for reliability and environmental impact.
• Policy Reforms: Implementing reforms to reduce fuel subsidies and promote competitive markets.
• Renewable Development: Enhancing the development of renewable energy, particularly small hydro and biomass, to reduce carbon emissions.

Recommendations

• Technology Recommendations: Focus on efficient coal technologies, gas-fired plants, and nuclear power.
• Policy Reforms: Support the development of a competitive generation market and reduce fuel subsidies.
• Planning Methodology: Improve load forecasting and consider low carbon options in planning.
• World Bank Role: Assist in the implementation of policy reforms and support the development of renewable energy projects.