Sleepy Orange

Lyon County, Nevada
Operating
In Development
In Construction

Sleepy Orange is a 500 MW solar and 500 MW battery project, carefully sited on approximately 4,000 acres of public land administered by the Bureau of Land Management in Lyon County, Nevada. The project is sited to minimize community and environmental impacts while maximizing reliable and consistent energy to support Nevada’s growing energy needs. 

Sleepy Orange is expected to complete construction and begin commercial operation in 2030. The addition of a battery energy storage system (BESS) would provide a consistent, dispatchable energy resource designed to support Nevada’s peak energy demands.

500
MWac Solar
$298 million
total estimated tax revenue to local, county, state, and federal jurisdictions from new economic activity throughout the construction and operation of the project.
500
MWac BESS
1,080
Average total jobs for workers in Nevada during construction, and 245 for workers in Lyon County.

Project Spotlight

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Project Overview

The project benefits

At Primergy, we develop solar projects with communities at the center, prioritizing local partnerships, environmental stewardship, and long-term impact. Our approach provides energy solutions that respect the land, empower people, and create sustainable value.  
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Community Impact

Latest Project News

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FAQ

How can I learn more about the project and provide feedback?

Primergy appreciates your questions and comments. Please email SleepyOrange@primergypower.com and we will get back to you!

When will construction start, and how long will it take?

Construction is expected to start in 2028 and will last for roughly 24 months.

How reliable is the project’s expected energy production over the life of the project?

The project’s expected energy production over its operating life is considered highly reliable based on trusted ground measured and satellite-based solar resource data, conservative performance modeling, and proven solar and battery technologies. Energy assessments and production forecasts are prepared and validated by a third-party engineer and incorporate standard P50 and other probability scenarios to account for long-term variability. Equipment degradation, auxiliary power consumption, and Nevada specific temperature impacts are included within the modeling assumptions. For the battery system, expected capacity fade is managed through a defined augmentation strategy designed to maintain required performance over time. Long-term O&M agreements, performance guarantees, and continuous monitoring further support operational reliability. Together, these factors provide strong confidence that the projected energy production can be sustained throughout the project lifecycle.