BPA transmission project. A project record with the source’s own status, dates and estimates. A proposal or connection request does not establish operation.
2026-07-29
This facility would be a new hub substation in Central Oregon near Prineville, OR. The new 115/230/500 kV Bonanza Substation would be built near BPA’s existing Ponderosa Substation.
Justification as BPA states it: Will create additional capacity to support new resource development and access to non-federal resources
A planning bundle in BPA's Grid Expansion and Reinforcement Portfolio: status, expected energization and cost change with each cycle; not a permit, a contract or a route. Proposed new or rebuilt substations as BPA published them for its GERP cycle: expected energization year, estimated cost in dollars and status are planning figures at publication; the point is the existing substation yard or the named site.
Map location unavailable. This plant remains part of the source inventory and tables.
The publisher's planning estimate for the project at publication (BPA GERP: nominal dollars as the layer carries it on the bundle, which does not say what it covers; BPA's summaries can state it for a group of projects); not a budget, contract or actual
2026-07-29 · reported · direct · valid · final
BPA's planning estimate as the layer carries it on this bundle at publication; nominal dollars. The layer does not say what it covers; BPA's project summaries can state it for a group of projects (group_name)
Bundle_ID=P05847; layer=substations
Publisher & attribution ↗ Cite this released fact ↗A planning bundle in BPA's Grid Expansion and Reinforcement Portfolio: status, expected energization and cost change with each cycle; not a permit, a contract or a route. Proposed new or rebuilt substations as BPA published them for its GERP cycle: expected energization year, estimated cost in dollars and status are planning figures at publication; the point is the existing substation yard or the named site.
Bonneville Power Administration, Grid Expansion & Reinforcement Portfolio substation projects (Evolving Grid), 2026
Proposed new or rebuilt substations as BPA published them for its GERP cycle: expected energization year, estimated cost in dollars and status are planning figures at publication; the point is the existing substation yard or the named site.
Release 20260929T050546Z-51ae0f7d3c78 · Record JSON