美国水电市场报告（2023年版摘要）-英-20页_3mb

Summary of U.S. Hydropower Market Report 2023 Executive Summary

Hydropower Market Overview

The United States operates 2,252 hydropower plants with a total capacity of 80.58 GW, generating 28.7% of renewable electricity and 6.2% of all electricity in 2022. From 2010 to 2022, capacity increased by 2.1 GW, driven by 129 new plants (679 MW net capacity) and upgrades, though growth slowed due to COVID-19 disruptions and supply chain issues. Incentives from the Bipartisan Infrastructure Law and Inflation Reduction Act are expected to boost investment.

Key Trends and Developments

• Pumped Storage Hydropower (PSH): With 22 GW capacity, PSH accounts for 70% of utility-scale power storage and 96% of energy storage, offering longer durations (median 12 hours) compared to battery projects. Growth slowed post-2020, with most upgrades supporting variable renewables.
• Hybridization and Innovation: Eleven plants have integrated or plan to add battery storage, enabling new revenue streams like ancillary services. Despite facing challenges, advancements in operational flexibility aim to enhance grid reliability amid increased renewable integration.
• Development Pipeline: Over 100 GW of new capacity is proposed, but permitting and siting hurdles persist, with project initiation lagging due to environmental concerns and relicensing complexity. PSH pipeline expanded significantly, highlighting its role in energy storage.

Policy and Economic Factors

The BIL and IRA provide financial incentives, such as tax credits, for hydropower upgrades and expansion. Growth incentives were delayed due to implementation uncertainties, but expected to drive near-term investment. State-level policies, including renewable portfolio standards, support hydropower, though some exclude PSH where applicable.

Challenges and Outlook

Slower capacity additions reflect external factors like supply chain constraints. Capacity factor and revenue stability are challenged by droughts and market volatility, potentially exacerbated by declining operational flexibility. Globally, hydropower remains dominant but faces stiffer competition from solar PV, with China leading new capacity additions.

Conclusion

Hydropower is integral to the U.S. energy mix, though expansion faces impediments related to economics and permitting. Technological innovations and policy stimuli offer pathways for sustained contribution to renewable and grid-critical applications, premised on effective implementation and mitigation of systemic obstacles.