PacifiCorp-C1-16
199 MW hybrid in Millard, UT · In queue since May 2021 · Proposed COD December 2025
199 MW
Capacity
1
Components
Solar
5 years
In Queue
IA Executed
IA Status
COD target: 2025
Total Duration
4y 7m
Schedule
4 months past proposed COD
Interconnection request submitted to ISO/RTO
Project undergoes interconnection studies to assess grid impact.
Typical: 18–36 months
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 18–30 months
Proposed COD: 2025-12-31
PacifiCorp-C1-16 is a proposed 199 MW hybrid solar and battery project located in Millard County, Utah. The development project, under the name Neptune Solar Energy Park LLC, consists of 199 MW of solar capacity. It is interconnected to the PacifiCorp system at the Blackrock substation.
The project is listed in the PacifiCorp interconnection queue as entry C1-16, with a queue entry date of May 7, 2021. The proposed commercial operation date is December 31, 2025, and the Interconnection Agreement (IA) has been executed. The project has appeared in recent news.
Generated from interconnection queue and public data sources
State
UT
County
Millard
Grid Region
Mountain West
Market
—
Developer
Neptune Solar Energy Park LLC
Utility
PacifiCorp
Entity
PacifiCorp
Service Type
—
Point of Interconnection
Blackrock substation
Data Source
LBNL
- ISO / RTO
- MOUNTAIN_WEST
- Trading Hub
- FOURCORNERS
- Hub Confidence
- UNKNOWN
This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.
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