Pasadena Electricity Rates, Explained
Just want the cheapest plan? This guide explains how Pasadena electricity rates actually work. To rank today’s live plans by your real usage, use the Pasadena rate comparison tool →
Last updated: October 18, 2026 · 7 min read
Pasadena is an industrial and working-class city in southeast Harris County, historically tied to the petrochemical industry along the Houston Ship Channel. Its housing stock is among the oldest in the Houston metro — many single-family homes were built in the 1950s, 1960s, and 1970s. That vintage matters enormously for electricity costs, because older homes tend to use significantly more cooling energy than newer construction. Every Pasadena residential address is within CenterPoint Energy's deregulated service territory.
The short answer
All Pasadena ZIP codes (77502–77507) are CenterPoint Energy territory — fully deregulated. Fixed-rate plans as of May 2026 typically advertise 9.5–13.5¢/kWh at 1,000 kWh. Pasadena's older, less-efficient homes often push summer usage to 1,200–1,700 kWh. Two steps help most: switch to a competitive fixed-rate plan if you are on a holdover rate, and address attic insulation if the home is pre-1980. Enter your ZIP for live plan comparisons.
CenterPoint Energy in Pasadena
CenterPoint Energy serves all of Pasadena under a PUCT-regulated franchise covering Harris County. CenterPoint's TDSP delivery charges appear on every Pasadena electricity bill: a fixed monthly customer charge plus a per-kWh distribution fee. At 1,000 kWh, these charges typically total $13–$18. At 1,500 kWh, they rise to $18–$25. These amounts are the same regardless of which REP you use.
Switching your retail electric provider changes the energy charge portion of your bill — not the CenterPoint delivery charge. If your current plan has been auto-renewed or is on a holdover variable rate, switching to a competitive fixed-rate plan is the single highest-impact action available.
Why Older Pasadena Homes Pay More — and What to Do About It
The gap between what a Pasadena home from 1965 uses and what an equivalent home built to 2015 energy codes uses can be 30–50% in summer electricity consumption. The main contributors are attic insulation (R-11 or less is common in older Pasadena homes, vs. R-38 current standards), single-pane aluminum-frame windows, aging HVAC equipment (SEER 8–10 vs. SEER 15–18 for modern units), and ductwork leakage in uninsulated attic spaces.
A rough estimate: upgrading attic insulation from R-11 to R-38 in a 1,200 sq ft Pasadena home can reduce summer cooling load by 20–30%, saving 200–400 kWh per month in peak summer months — that is $20–$44 per month on a 10¢ plan. The upgrade itself typically costs $800–$1,500 installed, with payback within 2–4 years.
| Efficiency Upgrade | Estimated Savings (Summer) | Typical Cost | Payback (at 10¢/kWh) |
|---|---|---|---|
| Attic insulation to R-38 | 150–350 kWh/mo | $800–$1,500 | 2–4 years |
| HVAC SEER 8→SEER 16 | 200–500 kWh/mo | $3,500–$6,000 | 5–9 years |
| Air sealing / duct sealing | 100–200 kWh/mo | $500–$1,200 | 2–4 years |
| Smart thermostat | 60–120 kWh/mo | $150–$250 | 1–2 years |
A Texas example
Carmen lives in a 1,100 sq ft home built in 1968 in South Pasadena (77504). Her August usage: 1,420 kWh. She has been on the same variable-rate plan for two years after her fixed contract expired. Her August bill was $196.50 — her provider's holdover variable rate was 13.8¢/kWh all-in. After switching to a fixed-rate plan at an effective 10.4¢/kWh all-in and adding R-30 attic insulation, her next August bill was $128.20 — at an estimated 1,150 kWh with the same thermostat settings. Combined savings: $68.30 in one August month.
Holdover Rates — The Silent Cost for Long-Term Pasadena Residents
One of the most common and costly situations in older Texas neighborhoods is the "holdover" rate. When a fixed-rate electricity contract expires and the customer does not actively switch or renew, the REP automatically moves them to a month-to-month variable rate — which is typically 30–60% higher than what was on the original fixed contract. In established neighborhoods like Pasadena, where residents have often lived in the same home for many years without closely tracking their plan status, holdover rates can persist for months or years.
If you are unsure whether you are on a fixed rate or a variable holdover rate, check the "Rate Type" section of your current Electricity Facts Label (EFL) — REPs are required to send you one. If it says "variable" and you do not remember choosing that, you are almost certainly on a holdover rate and switching should be your first priority.
Watch out
LIHEAP (Low Income Home Energy Assistance Program) and CEAP (the Texas Comprehensive Energy Assistance Program) provide bill assistance for qualifying Pasadena households. These programs do not eliminate the benefit of switching to a cheaper plan — assistance is fixed and does not grow with your bill. Reducing your bill through a plan switch compounds with any assistance you receive. Contact the Harris County Community Services Department for local LIHEAP enrollment.
Smart move
Texas's Weatherization Assistance Program (WAP), administered by TDHCA, provides free attic insulation, weather stripping, and HVAC tune-ups for income-qualifying households. Pasadena's older housing stock makes it one of the city types where WAP delivers the largest energy savings. Check eligibility at tdhca.state.tx.us — the program is federally funded and has no repayment obligation.
Key Takeaways
All Pasadena ZIP codes are CenterPoint territory — TDU charges are fixed. Pasadena's older housing stock often drives above-average summer usage due to less efficient insulation and HVAC equipment. Two actions with the highest combined impact: switch from a holdover variable rate to a competitive fixed-rate plan, and address attic insulation in pre-1980 homes. Both compound each other.
Find the cheapest Pasadena plan for your home
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Compare Pasadena Plans →Frequently Asked Questions
What are typical electricity rates in Pasadena, Texas?
As of May 2026, fixed-rate plans in Pasadena (CenterPoint Energy territory) typically advertise 9.5–13.5 cents per kWh at 1,000 kWh. Pasadena's housing stock is primarily older single-family homes from the 1950s–1980s, and many homes have less efficient insulation and aging HVAC systems that drive summer usage above the 1,000 kWh EFL benchmark. Search by your ZIP for a true cost calculation.
Who is the TDU for Pasadena, Texas electricity?
CenterPoint Energy is the transmission and distribution utility for Pasadena in Harris County. CenterPoint owns the poles, wires, and meters and handles all outage restoration. You cannot switch your TDU, but you can freely switch your retail electric provider (REP) at any time with no service interruption.
What ZIP codes cover Pasadena, Texas for electricity?
Pasadena's residential ZIP codes include 77502, 77503, 77504, 77505, 77506, and 77507. ZIP 77502 covers central and west Pasadena. ZIP 77504 and 77505 cover south and southeast areas. All are within CenterPoint's deregulated service area.
Does living near the Pasadena petrochemical corridor affect electricity rates?
No. Proximity to industrial areas along the Houston Ship Channel does not affect residential electricity rates. CenterPoint TDU charges are uniform across all residential customers in the service area. Your electricity plan pricing is determined solely by the competitive REP market — the same rates available in any other CenterPoint ZIP.
Why might Pasadena electricity bills be higher than in newer Houston suburbs?
The primary factor is home efficiency, not rate differences. Pasadena's older housing stock — many homes built in the 1950s–1970s — often has original single-pane windows, inadequate attic insulation, aging ductwork, and older HVAC systems with lower efficiency ratings. These factors increase cooling demand in summer relative to newer construction of equivalent size, leading to higher kWh consumption and higher bills at the same plan rate.
How can Pasadena residents reduce their electricity costs?
Two complementary approaches: (1) switch to a competitively priced fixed-rate plan if you are on a holdover or variable rate — this alone can reduce the per-kWh cost by 30–50%. (2) Address home efficiency — attic insulation upgrades are among the highest-ROI improvements for older Pasadena homes, typically paying back within 2–4 years in electricity savings. Low-income households may qualify for free weatherization through Texas's WAP program.
Your Next Move
Enter your Pasadena ZIP in the search tool for live plan comparisons. For a full explanation of why Texas electricity bills get high — and the most effective fixes — see the why is my Texas electricity bill so high guide. The Houston electricity rates guide covers CenterPoint territory and market structure. The True Cost Calculator models any plan at your actual usage so you can see the true annual bill before switching.
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