Improving Reliability and Capacity of Washington State's Electric Transmission System

Overview

• Purpose: To enhance the reliability and capacity of Washington's electric transmission system.
• Goals:
  • Achieve carbon neutrality by 2030 and carbon-free electricity by 2045.
  • Address increasing demand for electricity due to electrification and clean energy investments.
  • Enhance resilience against extreme weather events.

Washington Electric Transmission Authority

• Creation: Establishes a centralized body for improving transmission reliability and resilience.
• Functions:
  • Long-term planning
  • Development transmission services
  • Coordination of siting and permitting
  • Research and engagement with stakeholders
• Goals:
  • Improve reliability, resilience, and affordability.
  • Increase access to low-cost renewable energy.
  • Support economic growth and maintain affordable rates.

Key Definitions

• Authority: Washington Electric Transmission Authority.
• Grid-enhancing technologies: Technologies that improve grid capacity and reliability.
• Nonwires alternative: Investments that defer the need for physical grid upgrades.
• Reconductoring with advanced conductors: Upgrading existing conductors to improve grid efficiency.

Structure and Governance

• Board of Directors:
  • Comprising 9 members with expertise in various fields like public utility, clean energy, and ratepayer protection.
  • Responsible for hiring an executive director and advising on policies.

Duties and Responsibilities

• Authority:
  • Support expansion and upgrade of transmission capacity.
  • Development of community microgrids and energy conservation.
  • Assess and coordinate regional transmission resources.
  • Submit annual reports on activities.
• Department of Commerce:
  • Develop a 20-year transmission needs assessment and enhancement roadmap.
  • Support local and tribal governments in transmission project development.

Funding and Financial Management

• Electric Transmission Operating Account: For operating costs.
• Electric Transmission Capital Account: For capital expenditures related to transmission projects.

Use of Eminent Domain

• The authority may exercise eminent domain for securing rights-of-way for new transmission corridors.

Incentives and Policies

• Incentive Rate of Return: Up to 2% increment for capital investments in grid enhancements that benefit ratepayers.
• Exemption from State Environmental Policy Act: Certain upgrades to powerlines exempt from compliance, excluding underwater powerlines.

Environmental and Cultural Considerations

• Protection of Resources: Consideration to avoid impacts on cultural and natural resources, and overburdened communities.
• Consultation Requirements: Utilities must consult with the Department of Archaeology and Historic Preservation and tribes to protect archaeological resources.

Expiration and Amendments

• Expiration Date: Certain provisions expire on July 1, 2028.
• Ongoing Updates: Needs assessment updates every five years starting in 2031.