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Oregon POWER Act
LegislationUS

Oregon POWER Act

2025 Oregon state law requiring utilities to charge large electricity loads (sites drawing 20 MW or more) the full cost of serving them, creating a dedicated rate class that prevents cross-subsidisation by residential customers.

Last refreshed: 15 July 2026 · Appears in 1 active topic

Key Question

Can Oregon's POWER Act survive its first regulatory test on 7 July?

Timeline for Oregon POWER Act

#10 6 Jul
#7 16 Jun
#7 10 Jun

Oregon PUC delays its data-centre tariff

Data Centres: Boom and Backlash
#6 4 Jun

Provided the legal mandate for PGE's large-load rate class filing

Data Centres: Boom and Backlash: Oregon bills data centres, not homes
View full timeline →

Background

The Oregon POWER Act (Prioritising Operational and Wholesale Energy Responsibility), passed in 2025, is the first US state law under which a utility has fully implemented a dedicated large-load rate class for sites drawing 20 megawatts or more, charging those sites the full cost of serving them rather than spreading grid-upgrade costs across the general residential customer base. Portland General Electric filed the first tariff under the Act on 10 June 2026, and Oregon's Public Utility Commission approved it on 7 July 2026, effective 8 July: a 29% rate increase for qualifying sites and a 1.3% household cut.

Prior to the POWER Act, the conventional US utility model socialised infrastructure costs across all customers: a new 100 MW data-centre campus triggering a substation upgrade would spread that upgrade cost over all ratepayers, effectively subsidising the operator. Oregon's law breaks that model explicitly, requiring cost causation: the party that causes the cost bears it. The 20 MW threshold was set to capture hyperscale and colocation campuses while excluding smaller commercial and industrial loads.

At least a dozen US states have filed or are considering similar cost-attribution bills in 2026. The 7 July OPUC approval is now the first national precedent for whether this approach survives regulatory scrutiny and any industry legal challenge. Its outcome will shape the legislative design of equivalent bills in Texas, Virginia, Georgia, and elsewhere.

Common Questions
Has the Oregon POWER Act taken effect yet?
Yes. Oregon's PUC approved the first tariff filed under the Act on 7 July 2026, and it took effect the following day, 8 July 2026.Source: OPUC proceeding
What is the Oregon POWER Act for data centres?
The Oregon POWER Act (2025) requires electric utilities to charge sites drawing 20 MW or more the full cost of the grid capacity they use, preventing them from spreading those costs across residential bills. PGE's first implementing tariff was approved on 7 July 2026, effective 8 July, setting a 29% large-load rate premium.Source: Oregon POWER Act / PGE OPUC filing
What is the 20 MW threshold in the Oregon data centre law?
The POWER Act's 20 MW threshold captures hyperscale and colocation data-centre campuses while excluding most smaller commercial and industrial loads. Sites at or above 20 MW are placed in a dedicated rate class.Source: Oregon POWER Act
How does the Oregon POWER Act affect household electricity bills?
Under the approved PGE tariff implementing the Act, household rates dropped 1.3% because the law prevents data-centre grid-upgrade costs from being spread across residential customers.Source: PGE OPUC tariff filing
Which states are copying Oregon's data centre electricity law?
At least 12 US states had active moratorium or cost-attribution bills targeting data centres in 2026. Oregon's law is the only enacted and implemented example, making it the primary legislative template.Source: Lowdown data-centres briefings
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