A surprisingly high electricity bill in CenterPoint territory can be concerning, especially during Houston's hot and humid summers. Understanding what drives your bill helps you distinguish between normal seasonal variation and issues that need investigation.
CenterPoint Energy is the transmission and distribution utility (TDU) serving the Houston metropolitan area. While CenterPoint delivers your electricity, your retail electricity provider (REP) sets your energy rates.
Houston's Challenging Climate
Houston's climate is particularly demanding on electricity bills:
- High temperatures combined with extreme humidity
- AC systems work harder to remove moisture from air
- Summer bills are often 2-3x higher than mild months
- Usage of 2,000-3,500+ kWh/month is common in summer
Houston's humidity makes cooling more energy-intensive than in drier Texas cities.
Texas Deregulated Market
In Texas's deregulated electricity market, your bill has two main components:
- Energy Charges: Set by your retail electricity provider (Reliant, TXU, etc.)
- TDU Charges: Set by CenterPoint for transmission and distribution
Understanding both components is essential. Your TDU charges are the same regardless of which REP you choose.
Retail Plan Pricing
Your retail electricity plan significantly affects your bill:
- Fixed-rate plans: Same rate per kWh regardless of usage
- Variable-rate plans: Rate can change monthly based on market
- Tiered plans: Rate changes based on usage thresholds
- Free nights/weekends: Higher daytime rates offset "free" periods
Check your effective rate per kWh to understand what you're actually paying.
Quick Investigation Steps
- Compare this month's kWh to the same month last year
- Calculate your effective rate (total bill ÷ kWh used)
- Check if you're on a variable rate that increased
- Look for the estimated read indicator
- Review the line-item breakdown