The renewable standard Washington voters wrote before CETA: I-937 is still on the books

What the 2006 law actually requires

I-937 applies to utilities serving at least 25,000 customers, which at last public report meant roughly the state's largest 17 or 18 providers, public and private. For them the renewable schedule rose in steps: about 3 percent of load by 2012, roughly 9 percent by 2016, and the full 15 percent by 2020, where it has held since. Alongside that renewable target sits a conservation duty, a standing obligation to capture every efficiency measure that costs less than the power it would save.

The word doing the heavy lifting is 'new.' I-937 defines eligible renewables narrowly, and it deliberately left out the Columbia and Snake River dams that already supplied most of the state's power. A qualifying utility meets the target with new generation, or with renewable energy credits (the tradable certificate that represents one unit of qualifying renewable power), not by pointing at the hydropower it was already buying from the Bonneville Power Administration.

The honest math, and what 'new' left out

Here is why that definition mattered. Roughly two-thirds of Washington's electricity comes from hydropower, most of it from federal dams marketed by Bonneville. Measure a utility by carbon and much of its portfolio is already clean, because falling water emits nothing. Measure the same utility by new renewables and that hydro counts for very little, which is exactly the pressure the 2006 initiative was built to apply.

CETA, the 2019 Clean Energy Transformation Act, measures carbon instead. It requires utilities to be coal-free by the end of 2025, greenhouse-gas neutral by 2030, and fully non-emitting by 2045, and existing hydro counts toward those goals. So the two laws can send opposite signals: a utility can look nearly carbon-free on CETA's scoreboard while still owing new renewables under I-937. The older law asked a question the newer one does not, namely how much clean generation did you add, not just how clean is the power you already had.

Who files, and where you can read it

Compliance is public, and you can pull it yourself. Consumer-owned utilities, the public utility districts and municipal systems like Seattle City Light, report annually to the state Department of Commerce. Investor-owned utilities, Puget Sound Energy, Avista, and PacifiCorp, report to the Utilities and Transportation Commission. Both sets of filings show renewable percentages, conservation targets and results, and any shortfalls.

Should a utility miss a target, I-937 allows some flexibility, including banking extra renewable credits earned in stronger years. Where a genuine shortfall remains, the law provides for a payment into conservation and renewable programs rather than a bare fine. The honest caveat: reading these reports takes patience, the categories have shifted as CETA layered on top, and reasonable people read the same numbers differently. When in doubt, the filing itself, not a summary of it, is the document to trust.

Worth watching this month

1. Watch for the annual I-937 compliance reports at the Department of Commerce, which consumer-owned utilities typically file around the start of June, so the latest full year should already be posted and checkable.

2. Watch the Utilities and Transportation Commission's docket pages for Puget Sound Energy and Avista, where renewable compliance and CETA implementation now sit side by side.

3. Watch your own utility's Clean Energy Implementation Plan under CETA, a roughly four-year plan that shows how new renewables and existing hydro are being counted together.

4. Watch the Cascade snowpack reports through the winter, because a dry year lowers hydro output and quietly raises how hard both the new-renewable and the carbon targets are to hit.

5. Watch for any proposals in the 2027 legislative session to reconcile or retire I-937 now that CETA is the headline law, an idea floated routinely so far, not a scheduled change.