相关实验视频
Updated: Jun 6, 2025

06:27
Simulating Impacts of Ice Storms on Forest Ecosystems
Published on: June 30, 2020
6.9K
气候变化及其对水系统的影响增加了电力系统脱碳的成本
Julia K Szinai1, David Yates2, Pedro A Sánchez-Pérez3
1Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. jszinai@lbl.gov.
Nature communications
|November 25, 2024
概括
到2050年,气候变化将增加电力需求,减少水电发电. 西部互连网的调整需要大量新的无碳容量,并产生巨大的成本.
科学领域:
- 环境科学环境科学
- 能源系统分析 能源系统分析
- 适应气候变化 适应气候变化
背景情况:
- 电力行业面临着两个挑战:脱碳化和适应气候变化.
- 水和电力系统之间的相互依赖使这些挑战复杂化,特别是在美国西部.
- 气候变化影响着水资源的供应,影响水电和水利基础设施.
研究的目的:
- 评估西部互连网在2050年之前适应气候变化和无碳发电的能力.
- 评估水能关系中的气候脆弱性和相互依赖性.
- 量化这些转型的基础设施和成本影响.
主要方法:
- 连接详细的水电系统模型.
- 在气候变化下模拟西部互连网的未来场景.
- 分析电力需求,水力发电和所需发电能力的变化.
主要成果:
- 到2050年,由于冷却和水需求,气候变化可能会使区域电力需求增加多达2%.
- 由于气候变化的影响,全年水力发电总量可能下降多达23%.
- 需要大幅扩大发电能力 (高达139吉瓦),可能使成本增加7% (150亿美元).
结论:
- 西部互连线需要大量投资于新的无碳发电能力,以适应气候变化.
- 解决水能联系对于确保电网可靠性和实现脱碳目标至关重要.
- 气候变化对电力部门构成重大风险,需要积极的适应和减缓战略.
相关概念视频
What is Climate?
18.4K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
18.4K
Global Climate Change
24.2K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.2K
Fast Decoupled and DC Powerflow
173
The fast decoupled power flow method addresses contingencies in power system operations, such as generator outages or transmission line failures. This method provides quick power flow solutions, essential for real-time system adjustments. Fast decoupled power flow algorithms simplify the Jacobian matrix by neglecting certain elements, leading to two sets of decoupled equations:
173
Electrical Energy
1.2K
Using electric appliances for a longer period of time consumes more electrical energy and results in a higher electric bill. The energy produced by the transfer of electrons from one point to another is known as electrical energy. If power is delivered at a constant rate, the electrical energy can be defined as the product of power used by the device for a period of time. The energy unit on electric bills is the kilowatt-hour, where one kilowatt-hour is equivalent to 3.6 × 106 joules.
1.2K
Power System Distribution
226
Power system distribution involves delivering electrical energy from power plants to consumers through a network of transmission and distribution systems. The process begins at power plants, where energy from coal, gas, nuclear, water, and wind is converted into electrical energy. These plants use three-phase generators, typically rated between 50 to 1300 MVA, with terminal voltages ranging from a few kV to 20 kV, depending on the size and age of the units.
The transmission system is designed...
The transmission system is designed...
226
Secondary Distribution
81
Secondary distribution systems provide electrical energy at the utilization voltage levels from distribution transformers to customer meters. Typical secondary voltages in the United States include 120/240 V for residential use, 208Y/120 V for residential and commercial use, and 480Y/277 V for industrial and high-rise commercial use.
In residential areas, 120/240 V single-phase, three-wire service is commonly used for lighting, outlets, and large appliances. Urban areas with high-density loads...
In residential areas, 120/240 V single-phase, three-wire service is commonly used for lighting, outlets, and large appliances. Urban areas with high-density loads...
81

