The dams your county owns, and where the power actually goes

Which dams, and who owns them

If you pay a power bill in Wenatchee, East Wenatchee, or Ephrata, your electricity very likely comes from a dam your neighbors own. Between Grand Coulee (the federal dam upstream, run by the Bureau of Reclamation) and the point where the Snake River joins the Columbia, five dams belong not to the federal government but to local ratepayers. Chelan County PUD operates Rock Island and Rocky Reach. Douglas County PUD operates Wells. Grant County PUD operates Wanapum and Priest Rapids.

These are non-federal projects, which means each one runs on a license from the Federal Energy Regulatory Commission (FERC, the agency that permits dams that are not federally owned). Those licenses run on the order of 30 to 50 years and set the terms for fish passage, river flows, and public recreation. Rock Island was the first dam built across the main Columbia, back in the early 1930s, per Chelan PUD's own history. The low rate you pay is tied to assets that were largely paid off long ago, and that is a big part of why it stays low.

How much of it stays home

A county's own customers use only a fraction of what its dams produce. For decades the rest has been sold under long-term power sales contracts to utilities across the Northwest, with names like Puget Sound Energy and Avista appearing on mid-Columbia contracts over the years. At last public report, each PUD has been reserving a growing share for its own load as older contracts expire, but the exact split shifts from year to year and is worth checking rather than assuming.

The honest math runs two ways. As out-of-district contracts wind down, more low-cost hydro can serve local homes, which helps hold rates down; at the same time, the PUDs sell surplus into the wholesale market, and that revenue helps pay off dam debt and fund fish programs. Read a PUD's annual report and its rate filing together and you can see both sides of the ledger, because neither document tells the whole story on its own.

Where to check it yourself

Three kinds of documents carry the facts. FERC license records, kept in the agency's eLibrary, show each dam's operating terms and its renewal schedule. The PUDs' long-term power sales contracts, summarized in their annual reports, show who buys the output. And each PUD's rate filings, voted on by an elected commission, show what local customers actually pay.

Because these are public utility districts, the commissioners who set rates stand for election in the county, and their meetings are open to the public. That is the part a ratepayer can touch directly. A rate change here is decided down the road at a commission meeting, not in Washington D.C. and not by a distant holding company, which is the practical difference public power makes.

Worth watching this month

1. Watch each PUD's commission agenda for any 2027 rate resolution, which is routine but sets what you pay next year.

2. Check FERC's eLibrary for filings on the Priest Rapids Project and the other mid-Columbia licenses, since relicensing and compliance steps move slowly but bind these dams for decades.

3. Look for the annual report releases from Chelan, Douglas, and Grant PUDs, which disclose roughly how much power is still committed to out-of-district buyers.

4. Follow Bonneville Power Administration rate and market notices, since federal hydro prices next door shape the wholesale market these dams sell into.

5. Track Washington's Clean Energy Transformation Act compliance reporting at the state Department of Commerce, since existing hydropower counts toward the 2045 clean-electricity target.