How "Free Nights" Actually Works
The Rate Structure
| Time | Rate |
|---|---|
| 9 PM - 6 AM | FREE (0¢/kWh) |
| 6 AM - 9 PM | 14-16¢/kWh |
The "free" electricity isn't actually free — the daytime rate is higher to offset the nighttime savings.
The Math Problem
The average Texas household uses electricity like this:
| Time | % of Usage |
|---|---|
| 9 PM - 6 AM | ~32% |
| 6 AM - 9 PM | ~68% |
Why? Your AC runs all day, especially in summer. You're at work, but your house still gets hot.
Calculation for 1,200 kWh: - Night usage: 384 kWh × $0.00 = $0 - Day usage: 816 kWh × $0.145 = $118.32 - TDU charges: ~$52 - Total: $170.32
Compare to Rhythm Straight Up 12: - 1,200 kWh × $0.098 = $117.60 - TDU charges: ~$52 - Total: $169.60
The "free nights" plan is actually MORE expensive for typical usage.
Who Actually Benefits
"Free Nights" CAN save money if:
- You work night shifts and sleep during the day
- You have an EV that charges overnight
- You run pool pumps, laundry exclusively at night
- You have a vacation home you only visit on weekends
You need 50%+ of usage at night just to break even.
Fastest way to find out
Upload your bill and we'll tell you exactly what's wrong and how to fix it.
Upload Your Bill →Frequently Asked Questions
What about Free Weekends plans?
Same math problem. Weekend usage is typically only 25-30% of total. The weekday premium rate usually wipes out the savings.
How do I know my night vs day usage?
Check your smart meter data (available through your TDU portal) or upload your bill and we can estimate based on your usage pattern.
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This article is for informational purposes only. Electricity rates and plans change frequently. Always verify current rates before switching.