Understanding Variable Products

There are advantages and disadvantages to energy products with variable rates, learn more about these types of products below. This page also displays historic variable energy rates charged by Southern Federal. 

 

Variable energy products have charges that might vary on a month-to-month basis. This means the rate you pay for electricity could go up or down depending on the current wholesale price for energy. The advantages to being on a month-to-month energy product is the flexibility to leave your contract at anytime. The disadvantage is you could pay a higher electricity rate Vs. a fixed rate product.

Example Comparison of Energy Product Types

Product Month 1 Month 2 Month 3 Month 4 Month 5 Month 6
Fixed Rate $0.09888 $0.09888 $0.09888 $0.09888 $0.09888 $0.09888
Variable Rate $0.08777 $0.010999 $0.16999 $0.21999 $0.18999 $0.12999

Table above is demonstrative purposes only. Your actual charges will vary based on your usage, taxes, TDU fees, and the energy rate at the sole discretion of Southern Federal.  

If you are currently enrolled in a variable month-to-month product, this page displays the historic variable energy charges by Southern Federal broken down by utility service territory. If you have more questions regarding this page or variable energy products, please contact our customer center at: 1 (844) 644-0474 Monday to Friday, 8am to 6pm.

Historic Variable Energy Rate Charges From Southern Federal

Centerpoint

Date: Energy Charge:
4-15-2026 $0.124577
2-15-2026 $0.134561
1-15-2026 $0.134561
12-15-2025 $0.125543
11-15-2025 $0.115543
10-15-2025 $0.115543
9-15-2025 $0.151683
8-15-2025 $0.151683
7-15-2025 $0.151683
6-15-2025 $0.142433
5-15-2025 $0.130950
4-15-2025 $0.121445
3-18-2025 $0.121325
2-15-2025 $0.131325
1-15-2025 $0.131325

Oncor

Date: Energy Charge:
4-15-2026 $0.118722
2-15-2026 $0.138873
1-15-2026 $0.138873
12-15-2025 $0.128873
11-15-2025 $0.118873
10-15-2025 $0.118873
9-15-2025 $0.143162
8-15-2025 $0.143162
7-15-2025 $0.143162
6-15-2025 $0.133657
5-15-2025 $0.124381
4-15-2025 $0.114876
3-18-2025 $0.121931
2-15-2025 $0.131931
1-15-2025 $0.131931

AEP Central

Date: Energy Charge:
4-15-2026 $0.117393
2-15-2026 $0.134767
1-15-2026 $0.134767
12-15-2025 $0.124767
11-15-2025 $0.114767
10-15-2025 $0.114767
9-15-2025 $0.142553
8-15-2025 $0.142553
7-15-2025 $0.142553
6-15-2025 $0.133004
5-15-2025 $0.122509
4-15-2025 $0.113004
3-18-2025 $0.114358
2-15-2025 $0.124358
1-15-2025 $0.124358

AEP North

Date: Energy Charge:
4-15-2026 $0.118723
2-15-2026 $0.136097
1-15-2026 $0.136097
12-15-2025 $0.126097
11-15-2025 $0.116097
10-15-2025 $0.116097
9-15-2025 $0.143620
8-15-2025 $0.143620
7-15-2025 $0.143620
6-15-2025 $0.134115
5-15-2025 $0.123620
4-15-2025 $0.114115
3-18-2025 $0.117756
2-15-2025 $0.127756
1-15-2025 $0.127756

TNMP

Date: Energy Charge:
4-15-2026 $0.100356
2-15-2026 $0.121040
1-15-2026 $0.121040
12-15-2025 $0.111040
11-15-2025 $0.101040
10-15-2025 $0.101040
9-15-2025 $0.131569
8-15-2025 $0.131569
7-15-2025 $0.131569
6-15-2025 $0.126041
5-15-2025 $0.115546
4-15-2025 $0.106041
3-18-2025 $0.108960
2-15-2025 $0.118960
1-15-2025 $0.118960

Lubbock

Date: Energy Charge:
4-15-2026 $0.113900
2-15-2026 $0.133900
1-15-2026 $0.133900
12-15-2025 $0.123900
11-15-2025 $0.113900
10-15-2025 $0.113900
9-15-2025 $0.133405
8-15-2025 $0.133405
7-15-2025 $0.133405
6-15-2025 $0.123900
5-15-2025 $0.113405
4-15-2025 $0.103900
3-18-2025 $0.113900
2-15-2025 $0.123900
1-15-2025 $0.123900