Adjusted transmission costs were implemented January 1, 2025. The “Regional Transmission Service” (RTS) line captures the transmission costs from ITC Midwest and other transmission providers and breaks them out from the rest of a customer’s bill.
Regional Transmission Service Q&A
What is Regional Transmission Service?
Transmission is the high-voltage lines that carry power long distances between power plants and the neighborhood substations that serve our customers. The RTS line item reflects only the actual cost of this service.
Transmission is the high-voltage lines that carry power long distances between power plants and the neighborhood substations that serve our customers. The RTS line item reflects only the actual cost of this service.
What is the impact to my bill?
The average electric bill is made up of several parts. One of those is the cost for transmission service, labeled Regional Transmission Service (RTS). Because RTS only makes up only one part of your total bill, the overall impact on bills is much smaller, and will vary depending on customer class.
The average electric bill is made up of several parts. One of those is the cost for transmission service, labeled Regional Transmission Service (RTS). Because RTS only makes up only one part of your total bill, the overall impact on bills is much smaller, and will vary depending on customer class.
Here is the percentage increase for the RTS for each customer class for January 2025 on:
| CUSTOMER CLASS | RTS RATE Unit | RTS Rate JUN-DEC 2024 |
RTS FACTOR JAN 2024 on |
% Change | rts component of overall bill* | overall estimated bill impact from 2024 |
|---|---|---|---|---|---|---|
|
Residential
|
$/kWh | 0.04010 | 0.04077 | 1.7% | 22% | 1.6% |
| General Service | $/kWh | 0.03153 | 0.03217 | 2.0% | 21% | 0.6% |
|
Large General Service
|
$/kW | 10.06 | 10.72 | 6.6% | 25% | 0.8% |
|
Large General Service - |
$/kW | 7.10 | 6.49 | 8.6% | 26% | 7.9% |
|
High Load Factor |
$/kW | 11.47 | 11.93 | 4.0% | 31% | 1.3% |
| Lighting | $/kWh | 0.03610 | 0.03533 | 2.1% | 9% | 0.2% |
| Standby | $/kW | 7.58 | 8.08 | 6.6% | 71% | 3.2% |
*Percentage of total transmission to total annual bill.
How often will the rates for the transmission costs change?
Costs for transmission service are subject to the authority of the Federal Energy Regulatory Commission. Alliant Energy anticipates adjusting its charges twice per year to reflect any changes which have occurred for these transmission costs. The charge is per unit of energy you use, so the actual cost is based on your usage and any change in the charge.