Data reported by:

Duke Energy Carolinas, LLC

PMU Deployment in the Carolinas with Communication System Modernization
Electric transmission system Portion Description
Portion of transmission system covered by phasor measurement systems 100.00%
Phasor measurement systems Quantity* Description Cost
PMUs 103 Schweitzer Model SEL 351A PMUs planned for all EHV lines. $3,216,682
Phasor data concentrators 2 PDCs will utilize the Grid Protection Alliance Open PDC software and a redundant... $448,201
Communications network Upgrade of existing SONET WAN backbone to a redundant 6 node OC - 3 Ring. Station... $3,989,026
Other transmission assets   Quantity* Description Cost
Dynamic Capability Rating System (DCRS)
- Transmission Lines
Other transmission assets
Other transmission assets
Other transmission assets
Advanced transmission applications operational    Operational Description Cost
Angle/frequency monitoring 1 Upgrade of existing SONET WAN backbone to a redundant 6 node OC - 3 Ring. Station communications upgrade from serial to IP. Duke Energy Carolinas is using PMUs to monitor angles and frequency; using PMU data for post mortem analysis; using PMU data for state estimation (we have yet to determine whether or how much PMU data improve our state estimation); and applying PMU data to baseline steady state system models in order to detect events. $0
Post-mortem analysis (including compliance monitoring) Yes
Voltage stability monitoring
Thermal overload monitoring
Improved state estimation Yes
Steady-state model benchmarking Yes
DG/IPP applications
Power system restoration

* In some circumstances, costs are incurred before devices are installed resulting in a reported cost where the quantity is zero.

* All dollar figures are the total cost, which is the sum of the federal investment and cost share of the recipient (the recipient cost share must be at least 50% of the total overall project cost).

** In some cases the number of entities reporting is greater than the total number of projects funded by the Recovery Act because some projects have multiple sub-projects that report data. View list of sub-projects.