Black Rock to Sigurd transmission project
About the project
The purpose and need for the Black Rock to Sigurd 230 kilovolt line is to ensure the transmission system is reliable. By supporting the integration of renewable energy – delivering power from renewable sources to customers – the project helps reduce greenhouse gas emissions. It also improves system reliability and efficiency by establishing an additional transmission path that enhances overall grid resilience.
- Type of structure: Steel monopoles and Wood H-Frame structures
- Voltage: 230 kV
- End points: Black Rock substation and Sigurd substation
- Length: Approximately 67 miles
- Height of structures: 50-100 feet
- Span between structures: 500-1200 feet
- Right-of-way width: 100 feet
Project timeline
Anticipated In-Service Date: 2027
Project map
Coming soon
Public outreach
Outreach efforts are essential to the early identification and resolution of potential project issues. The Company will perform public outreach to inform each land use authority about the project, and create opportunities for affected stakeholders to have their questions and concerns addressed. Notifications of public outreach opportunities will be mailed out to stakeholders and posted on this site. Additionally, this website will be updated throughout the project with various pieces of key information.
Any questions or comments about the project can be directed to pacpmo@pacificorp.com and be sure to note “Black Rock to Sigurd” in the subject line. Input and feedback are valuable to us as we work through the planning and permitting phases of the project. Please include your contact information and preferred contact method in your correspondence.