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Dammed If You Do
How Sunk Costs Are Dragging Canadian Electricity Ratepayers Underwater

Series:Commentary No. 528 - Energy and Natural Resources
ISBN 9781987983876
Publication year: 2019

Cdn: $12.00; US: $12.00
Paperback
Language: English
25 pages
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Cost-overruns at several large-scale hydro projects in Canada raise questions about the economic viability of continuing construction to completion. In Dammed If You Do: How Sunk Costs Are Dragging Canadian Electricity Ratepayers Underwater author A.J. Goulding argues that government decisions to make such large investments in hydroelectric generating capacity must be scrutinized for economic soundness – particularly relative to the costs of alternatives for producing the power.

Canada has several large hydroelectricity projects presently under construction all of which have ever-increasing estimates of projected total cost: Site C on the Peace River in northern British Columbia at $10.7 billion, Keeyask on the Nelson River in Manitoba at $8.7 billion, and Muskrat Falls on the Churchill River in Labrador at $12.7 billion.

This study examines the cost-effectiveness of these hydro projects by comparing the costs of equivalent generation from carbon cost adjusted combined cycle natural gas turbines (CCGT). The analysis demonstrates that the levelized costs from the Site C and Keeyask projects may exceed the costs of alternative CCGT generation. The study notes that risks of building large generation capacity in anticipation of uncertain future demand for electricity and contends that, relative to large hydro projects, the roll-out of CCGT generation can be more flexibly timed (and paired with environmental initiatives) to meet demand as it materializes.

“Even if we build-in the costs of cancellation the present economics would still favour cancelling Site C and replacing the respective energy with equivalent dispatchable CCGT generation capacity, supplemented by offsets to meet environmental goals” said Goulding.

While an emphasis on renewables generation has motivated these major hydroelectric projects, the analysis shows that Site C exceeds the levelized cost of a CCGT alternative that faces a $50/tonne carbon price. Moreover, drawing from results in recent renewable energy procurements, the study observes that wind generation, albeit intermittent, can provide a much lower levelized cost of zero-emission electricity than such large-scale hydro projects.

This study concludes by recommending that provinces re-examine the economics of these projects and consider cancelling projects which have more cost effective alternatives. To avoid uneconomic projects in the future, the report also recommends strengthening institutional independence – in particular, by ensuring independent regulatory review for mega-projects and leveraging greater private-sector discipline for the design and delivery of major electricity projects.

A.J. Goulding is President of London Economics International LLC (“LEI”). He has advised provincially owned hydro companies, IPP associations, and consumer groups on Canadian and international electricity market related issues.

Jarome Leslie is a Senior Consultant with LEI.
Dammed If You Do
Cdn: $12.00; US: $12.00
C.D. Howe Institute / Institut C.D. Howe BookID: 124332 Added: 2019.1.26