Improving Reliability and Capacity of Washington's Electric Transmission System

Background

• Washington State aims to:
  • Decarbonize its electricity system to be carbon neutral by 2030 and carbon-free by 2045.
  • Retire coal and gas resources, add renewable resources, and leverage energy storage technologies.
  • Address increasing electricity demand from vehicle electrification, home heating/cooling, and manufacturing.
• The current transmission system is inadequate for the demand and affected by extreme weather events, necessitating upgrades.

Washington Electric Transmission Authority

• Creation: A centralized body to improve transmission reliability, resilience, and affordability.
• Goals:
  • Improve reliability, especially during extreme weather.
  • Increase access to low-cost renewable energy.
  • Meet clean electricity requirements and greenhouse gas emission limits.
  • Support economic growth and maintain affordable energy rates.

Key Components

Part I: Washington Electric Transmission Authority

• Authority's Purpose:
  • Expand transmission capacity and support microgrids and distributed resources.
  • Collaborate with various entities for interstate and regional transmission development.
  • Encourage non-wire alternatives and ensure protection of cultural/natural resources.
• Board of Directors:
  • Nine members with varied expertise, appointed by the governor.
  • Responsible for hiring an Executive Director and advising on policies.

Part II: State Environmental Policy Act Adjustments

• Certain utility-related actions exempt from compliance with the Act, especially if involving existing powerlines or rights-of-way.
• Utilities required to consult with the Department of Archaeology and Indian Tribes before project commencement.

Part III: Incentives for Electric Transmission Investment

• Incentive Rate of Return:
  • Encourages investments in grid-enhancing technologies and advanced conductors.
  • Available through December 31, 2040, with a 2% increment on the rate of return.

Part IV: Miscellaneous Adjustments

• Adjustments to RCW 43.84.092 and 43.84.092, including treasury income account distribution and related provisions.

New Accounts

• Electric Transmission Operating Account: Funds from appropriations, federal funds, gifts, and grants.
• Electric Transmission Capital Account: Handles revenue related to electric transmission projects.

Reporting and Assessment

• Transmission needs assessments and enhancement roadmaps developed every five years.
• Reports to be submitted to the governor and legislature annually.

Conclusion

Washington state's legislative efforts aim to systematically upgrade its electric transmission infrastructure to meet future energy demands while achieving environmental and economic goals.