Hydro-Québec to Pay $1 Billion Extra for U.S. Electricity Export

Hydro-Québec faces substantial cost overruns in its operations to export electricity to the United States. The Crown corporation will incur an additional $1 billion, a 50% increase compared to its initial budget. These rising costs reflect broader trends in energy infrastructure globally.
Cost Overruns in U.S. Electricity Export Plans
For several years, Hydro-Québec has embarked on projects aimed at fulfilling significant supply contracts with the U.S. The company plans to export approximately 20 terawatt-hours (TWh) of clean electricity annually to New York City and New England.
Projected Costs and Budget Increases
The anticipated expenditures related to construction for two key projects, the Hertel and Appalachian substations, are now forecasted to reach $2.9 billion. This figure surpasses the initially approved budget of $1.9 billion by $934 million.
- Hertel Substation:
- Authorized budget: $1.1 billion
- Expected cost: $1.9 billion
- Expected in-service date: May 2026
- Appalachian-Maine Interconnection:
- Authorized budget: $823 million
- Expected cost: $1.2 billion
- Expected in-service date: December 2025
Factors Behind the Increase
Several elements have contributed to this unexpected financial burden. The price of essential components, such as converters and electrical cables, has surged significantly. For instance:
- The cost of converters has nearly doubled, rising from about $250 million to $500 million.
- Steel prices for pylons increased by 48%.
- High-power transformer costs rose by 68%.
- High-voltage cable prices jumped by 78%.
Additionally, delays caused by a Maine referendum related to these projects and escalating prices for underwater cables needed for the interconnection have further exacerbated budgetary issues.
Wider Implications for Hydro-Québec
Out of 30 ongoing projects within Hydro-Québec’s Transport division, 16 are expected to exceed their budgets by an average of 15%. Major projects, particularly in energy, are grappling with escalating material and labor costs. Experts suggest that the uncertainty surrounding international trade and material prices poses significant challenges.
Hydro-Québec’s financial strategies are also under scrutiny. Although the Quebec government has capped residential rate increases at 3%, the excess costs may fall on institutional, commercial, and industrial clients. This approach raises concerns about future financial fairness and stability.
Conclusion
Experts are worried about the implications of these rising costs on the energy sector. With Hydro-Québec investing nearly $200 billion over the next decade to modernize infrastructure, managing cost overruns will be critical to ensure the efficacy of its electricity export plans.




