Wednesday, May 27, 2026

Guest Essay: Washington's Biggest Grid Problem Isn't Data Centers — It's Winter (Appeared in the Seattle Times, WA)

May 27, 2026

By Kurt Miller and Kelly Fukai 

Most of Washington's public energy debate centers on AI and data centers. The April 2026 E3 resource adequacy study — which the Seattle Times editorial board rightly called an alarm for every Washingtonian — should reframe that conversation. The most challenging problem facing the Pacific Northwest’s grid is not AI. It is winter. 

Winter cold demand is acutely peaked, weather-driven, geographically diffuse across millions of homes, and most severe precisely when wind and solar produce least. As Washington pushes heating from gas onto electric heat pumps, that demand shifts onto the system hardest to expand fast enough to absorb it. 

The Northwest Public Power Association represents over 150 community-owned utilities accountable to their customers for rates. The Northwest Gas Association represents the region's natural gas distribution and gas transmission companies. For most of the region's history, the two systems operated in parallel silos — electric utilities managed the grid, gas utilities managed the pipe — and when the region had abundant generation and comfortable margins, that separation worked fine. 

That era is over. 

Electrification is shifting heating load from gas onto the grid faster than transmission and generation can be built to absorb it. At the same time, gas-fired generation is what the grid leans on when wind and solar fall short — and a cold snap that strains gas delivery also strains the power plants that depend on it. The two fuels are now deeply interdependent. Our shared conclusion: reliability and affordability both depend on treating energy diversity as a strength, not a problem to engineer away. 

Today, the natural gas system absorbs much of the winter surge directly, heating millions of homes without placing equivalent pressure on the grid — a vast reliability asset that policy discussions consistently undercount. 

We saw what happens when redundancy disappears. Over Martin Luther King Jr. weekend in January 2024, a cold snap pushed the regional grid to its limit. The Northwest was importing nearly 5,000 megawatts from California and beyond. Wind generation collapsed across much of the region. An unexpected outage hit Jackson Prairie, the region's largest natural gas storage field, at the worst possible moment. 

The Western Power Pool called it a tipping point; the region narrowly avoided rolling blackouts. What the event made undeniable: operating without excess capacity and fuel diversity creates real risk. What rarely gets mentioned — on the coldest day of that snap, direct-use natural gas supplied more than 70 percent of the region's total energy needs, complementing the electric grid precisely when it was most strained. 

If heating demand shifts onto the electric grid at the pace state policy contemplates, the scale becomes enormous. E3 projects widespread building electrification could raise regional winter peak demand by nearly 30 gigawatts — equivalent to another Northwest hydropower system — while the region already faces a nine-gigawatt shortfall by 2030. The problem is sharpest during prolonged cold, when heat pump efficiency degrades and backup resistance heating kicks in, creating needle peaks at the worst moment for grid operators. 

The E3 analysis confirms what January 2024 demonstrated: meeting this challenge requires every tool working together. New natural gas peaking generation is part of the least-cost reliable pathway through the transition. Direct gas use in homes and businesses keeps winter load off the grid — a distributed reliability asset no wire or battery can easily replicate on the coldest days. Expanded renewables, new transmission, and clean firm capacity are essential too. A diversified system drawing on the complementary strengths of multiple fuels is the formula most likely to deliver reliability and affordability through the transition. 

What that means for Washington is concrete. State policy should permit new natural gas peaking capacity as a bridge until clean firm technologies are commercially mature. It should align the pace of building and transportation electrification mandates with the rate at which clean firm generation and transmission can be built. And it should treat direct natural gas heating in homes and businesses as a reliability resource that prevents those needle peaks from forming.  

None of this is an argument against decarbonization — significant progress is both achievable and necessary. It is an argument for how we get there without leaving families cold or bills unaffordable. The Pacific Northwest's energy strength has always come from diversity: hydro and thermal, wind and solar, supply and efficiency, pipe and wire working in concert. That same instinct — applied to a cleaner, electrified future — remains the surest path to a reliable, resilient, and affordable system. The answer is not all electric or all gas. It is a smarter, better-integrated combination of both. 

Kurt Miller is the CEO & Executive Director for the Northwest Public Power Association, representing more than 150 community-owned electric utilities across 10 Western states, including Washington.