Boulder Canyon Project
Effective October 1, 2025
| Schedule | Description | Rates |
|---|---|---|
| BCP-F11 (PDF) | Electric Service | |
| Base Charge | $76,174,568 | |
| Energy Dollars | $38,087,284 | |
| Capacity Dollars | $38,087,284 | |
| Forecast Energy Rate1 | 12.95 mills/kWh | |
| Forecast Capacity Rate2 | $2.27 /kW-month | |
| Composite | 25.89 mills/kWh | |
| Lower Colorado River Basin Development Fund | 4.50 mills/kWh (AZ) | |
| Contribution Charge | 2.50 mills/kWh (CA/NV) | |
| 1 Applied to Excess Energy, Unauthorized Overruns, and Water Pump Energy. 2 Applied to Unauthorized Overruns. |
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Point of Contact: Christina Maldonado
Parker-Davis Project
Effective October 1, 2025
| Schedule | Description | Rates |
|---|---|---|
| PD-F8 (PDF) | Firm Electric Service | |
| Energy Charge | 14.14 mills/kWh | |
| Capacity Charge | $6.20 kW-Month | |
| Composite | 28.27 mills/kWh | |
| Lower Colorado River Basin Development Fund | 4.50 mills/kWh (AZ) | |
| Contribution Charge | 2.50 mills/kWh (CA/NV) | |
| DSW-FCT8 (PDF) | Transmission Service of SLCA/IP Power | $1.76 /kW-Month |
Point of Contact: Shannon Joya
One Transmission Rate (OTR)
Central Arizona, ED5-PVH, Intertie, & Parker-Davis Projects
Effective October 1, 2025
| Schedule | Description | Rates |
|---|---|---|
| DSW-FT1 (PDF) | Long-Term and Short-Term Firm Point-to-Point Transmission Service (Schedule 7 to OATT) | $21.12 /kW-Year |
| $1.76 /kW-Month | ||
| $0.41 /kW-Week | ||
| $0.06 /kW-Day | ||
| 2.41 mills/kWh | ||
| DSW-NFT1 (PDF) | Nonfirm Transmission Service (Schedule 8 to OATT) |
2.41 mills/kWh |
| DSW-NTS1 (PDF) | Network Integration Transmission Service Annual Transmission Revenue Requirement (Attachment H to OATT) | $107,004,624 |
Point of Contact: Tina Ramsey
Other Services
Effective October 1, 2025
Western Area Lower Colorado (WALC) Balancing Authority Area Services |
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| Schedule | Description | Rates |
|---|---|---|
| DSW-SD4 (PDF) | Scheduling, System Control & Dispatch (Schedule 1 to OATT) |
$12.54 /schedule per day |
| DSW-RS4 (PDF) | Reactive Supply and Voltage Control (Schedule 2 to OATT) |
$0.096 /kW-Month |
| DSW-FR4 (PDF) | Regulation and Frequency Response (Schedule 3 to OATT) |
$0.103 /kW-Month |
| DSW-SPR4 (PDF) | Spinning Reserves (Schedule 5 to OATT) |
None available1 |
| DSW-SUR4 (PDF) | Supplemental Reserves (Schedule 6 to OATT) |
|
| DSW-EI4 (PDF) | Energy Imbalance Schedule 4 to OATT |
See Rate Schedules2 |
| DSW-GI2 (PDF) | Generator Imbalance Schedule 9T to OATT |
|
Transmission Provider Services |
||
| Schedule | Description | Rates |
| DSW-TL1 (PDF) | Transmission Losses | 3.00% |
| DSW-UUI (PDF) | Unreserved Use Penalties Schedule 10 to OATT |
See Rate Schedule |
Western Energy Imbalance Market |
||
| Schedule | Description | Rates |
| DSW-EIM1T (PDF) | Administrative Service (Schedule 1T to OATT) |
Pass Through3 |
| DSW-EIM4T (PDF) | Energy Imbalance Service (Schedule 4T to OATT) |
|
| DSW-EIM9T (PDF) | Generator Imbalance Service (Schedule 9T to OATT) |
|
| 1 Upon request, WALC will purchase at market price and pass-through the cost-plus administrative fee. 2 These apply if the Western Energy Imbalance Market (WEIM) is not operating and WALC is providing the service. 3 Charges shall reflect the pass-through of all applicable costs associated with WALC participation in the WEIM. |
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Point of Contact: Tina Ramsey
Last modified on November 17th, 2025