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Dayton Cutoff Solar

Solar power plant in Oregon, United States of America. Approximate location 45.17, -123.135.

SolarOregonUnited States of America

Dayton Cutoff Solar is a 2 MW solar power plant in Oregon, United States of America. It is operated by SP Solar 7 LLC. Based on reported annual generation of 4 GWh, it can supply roughly 1,000 homes. It ranks #7612 of 9,833 United States of America power plants by installed capacity. Commissioned in 2018, it is around 8 years old — recently built. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, solar supplies about 8.6% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

2MW installed capacity
4GWh reported / yr
1,000homes powered
2018commissioned (~8 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0061827.

In context: how this plant compares

At 2 MW, Dayton Cutoff Solar is below the median solar plant in United States of America (3 MW). Solar PV converts sunlight directly into electricity with no moving parts or fuel; output varies by time of day and weather, so it pairs with storage or flexible backup.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Reported generation trend

2017: 0 GWh20172018: 3 GWh20182019: 4 GWh20194 GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by SP Solar 7 LLC.

Local climate & thermal context

This solar plant converts sunlight directly into electricity with photovoltaic panels. It sits in a warm-summer Mediterranean climate (Köppen Csb) — Northern Hemisphere, latitude 45.2°N — which shapes how much energy it can produce and how its output varies through the year.

11.3°Cannual mean temp
2,487heating degree-days (base 18°C)
55cooling degree-days (base 18°C)
80 melevation

Monthly mean temperature

J: 4 °CJF: 6 °CFM: 8 °CMA: 10 °CAM: 13 °CMJ: 16 °CJJ: 19 °CJA: 19 °CAS: 17 °CSO: 12 °CON: 7 °CND: 4 °CD19 °C

Heating degree-days here run 1% above the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 50/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.

Solar PV loses ~0.35%/°C above 25°C cell temperature — roughly 0.0% at warm-season highs here (estimate).

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

How it compares & nearby plants

The #1932 largest solar power plant of 3283 in United States of America by capacity.

United States of America has 3283 solar power plants in this dataset, together about 37,970 MW of capacity.

Nearby power plants

Location

Coordinates 45.17, -123.135 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Cutting heat loss at this plant

Plants like this lose energy through hot turbines, heat exchangers, valves and steam lines. Inzonex makes removable, reusable turbine & heat-exchanger insulation that cuts that loss by up to 90% and holds surface temperatures under 45°C, unclipping in seconds for maintenance. See the industrial-AI efficiency hub for tools and benchmarks.

Frequently asked questions

What type of power plant is Dayton Cutoff Solar?

Dayton Cutoff Solar is a 2 MW solar power plant in Oregon, United States of America, commissioned in 2018.

How much electricity does Dayton Cutoff Solar generate?

Dayton Cutoff Solar generates about 4 GWh of electricity per year.

How many homes can Dayton Cutoff Solar power?

Its output is enough to supply roughly 1,000 homes.

Who owns or operates Dayton Cutoff Solar?

Dayton Cutoff Solar is operated by SP Solar 7 LLC.

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