Washington advances carbon market linkage plans

Washington regulators are moving forward with plans to further align the state's cap-and-trade program with the California-Quebec carbon market.

The state Department of Ecology has released for public comment two draft rules related to holding limits, biofuel emissions and electricity imports that are intended to smooth the way for linkage ahead of formal discussions with California and Quebec regulators that could kick-off next year.

The first draft rule, issued on Monday, would revise general cap-and-trade program mechanics, such as raising the holding limit for allowances issued each year for general market participants to 25pc from 10pc should the programs link. It would also revise emissions exemption for biofuels, recently authorized by state lawmakers, of 30pc lower greenhouse gas (GHG) emissions than comparable petroleum fuels and allow Ecology to add an exemption standard used by a linked program, for a two-part standard.

Washington set the ball rolling on its ambition to link with the Western Climate Initiative (WCI) partners California and Quebec last year in hopes that creating a larger North American carbon market will help reduce compliance costs. The state legislature authorized Ecology to make the changes in legislation adopted earlier this year. The program costs became a significant issue last year, when Washington Carbon Allowances (WCAs) rose as high as $70/metric tonne (t) in the secondary market.

California and Quebec agreed in March to explore adding Washington to the WCI, but progress is unlikely to happen this year as California regulators first focus on updating the state's cap-and-trade program.

In the interim, Ecology said it is still considering other amendments that could help with linkage, including moving the state's compliance periods, which run on a four-year cycle, to the three-year cycle used in the linked market. But California and Quebec are considering shifting their compliance periods to either four years or two years for 2026-2030, and then to either five years or alternating between three-year and two-year periods after 2030 to align with their respective statutory targets, which Ecology will have to take into account.

Washington has set a target to cut GHG emissions by 45pc by 2030 compared with 1990 levels, and reach net-zero emissions by 2050. The program cap-and-trade program covers industrial facilities, power plants, natural gas suppliers, and other fuel suppliers with emissions of at least 25,000 t/yr.

Ecology is accepting feedback on its linkage rulemaking through 27 September, with a public meeting set for 10 July.

Imports and reports

In a separate rulemaking announced last week, the state is considering expanding reporting requirements and covered emissions under the program to included imported electricity from centralized electricity markets (CEM). The state is required under its Climate Commitment Act to adopt a methodology for imported electricity by 1 October 2026.

The proposed amendments would come into play in 2027, allowing regulators to assign GHG emissions to imports of electricity from CEM and for the state to better understand how the imports may affect its climate goals.

Under the proposed amendments, regulators would increase allocations of no-cost allowances to electric utilities. The state issues no-cost allowances to electric and natural gas utilities, and industrial entities, to mitigate the cost of decarbonization. Electric utilities must consign an increasing portion of these allowances to state auction starting in 2027 and must use this revenue for projects to benefit customers through projects like energy transition billing credits.

Regulators estimate that bringing CEM importers under the cap-and-trade program will result in an aggregated annual compliance cost of around $7mn-$119mn, depending on allowance prices, which regulators expect will fall as emissions declines outweigh imports over time, according to a preliminary regulatory analysis released last month.

The proposed changes reflect estimates last year by the state Department of Commerce that 43pc of the state's electricity supply by 2050 will come from imports, driven by Washington moving its electricity away from fossil fuels to renewables sourced from within and outside the state to meet the goal of decarbonizing the state's grid by 2045.

Ecology will accept feedback on its proposed rules for imported electricity through 20 August, with final adoption planned in December.

By Denise Cathey