Wyoming PSC approves PacifiCorp’s wind & transmission expansion project

Last week, the Wyoming Public Service Commission (WPSC) approved PacifiCorp moving ahead with a significant wind and transmission expansion plan that would add enough new wind to power more than 400,000 homes by 2020.

Wind turbine -- Wyoming expansion project

As part of its Energy Vision 2020, PacifCorp is building a new 140-mile Gateway West transmission segment in Wyoming to enable additional wind generation, including 1,150 MW of new wind by the end of 2020.

In a bench decision, the Wyoming PSC approved a settlement agreement between PacifiCorp, the Wyoming Industrial Energy Consumers, the Wyoming Office of Consumer Advocate and the Interwest Energy Alliance on the new wind and transmission portions of PacifiCorp’s Energy Vision 2020 proposal.

The commission also approved the Certificates of Public Convenience and Necessity (CPCNs) that are needed for construction of the Wyoming-based projects.

“Approval by the Wyoming commission marks a key step forward for our plan to significantly expand the amount of cost-effective renewable energy serving customers,” said Stefan Bird, president and CEO of Pacific Power, the unit of PacifiCorp that serves customers in Oregon, Washington, and Northern California.

As part of the settlement agreement, a previously announced 161-MW wind project in Uinta County, WY will no longer be included in the initiative. PacifiCorp also agreed to additional customer protections in the event of cost overruns as part of the agreement.

Included in the approved settlement are three new Wyoming wind projects that will provide a total 1,150 MW of new wind, which represents about a 60% expansion of PacifiCorp’s current owned and contracted wind fleet, as well as a 140 mile high-voltage transmission line in Wyoming that will help more wind energy connect to PacifiCorp’s transmission system.

In addition to the new wind projects and transmission line, the company’s Energy Vision 2020 initiative would upgrade, or “repower,” the company’s existing wind fleet in Wyoming, Washington and Oregon with longer blades and newer technology to boost output and extend the life of the projects.

The repowering plan is being considered separately by the Wyoming commission and is still pending. Components of the plan also are still waiting state regulatory approval in Utah, Oregon and Idaho.

Pending approval from state commissions, acquisition of rights of way, and receipt of permits, construction on the wind and transmission projects is expected to start in 2019.

The Energy Vision 2020 projects were identified in the company’s 2017 Integrated Resource Plan as the most cost-effective option to meet customers’ energy needs over the next 20 years. Completing the projects by 2020 will allow customers to realize the full benefit of production tax credits and provide a net savings for customers over the life of the projects.

Click here to learn more about Energy Vision 2020.

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