As a Round Rock resident, you can choose your electricity provider due to Texas energy deregulation. Since 2002, this competitive market has allowed homeowners in Williamson County to select from various retail electricity providers (REPs) and plans. This choice can lead to significant savings, better customer service and renewable energy options that align with your values.
Electricity rates in Round Rock, Texas, can start as low as 10.2 cents per kWh, but may exceed 24 cents per kWh, depending on the energy plan you choose. While the deregulated energy market in Texas has helped keep prices competitive, it has also created an energy market that can feel like navigating the wild west.
With Dell Technologies headquarters and a growing population increasing energy demand, finding the right plan is crucial for budget-conscious homeowners. The right electricity plan could save you hundreds annually, especially during Central Texas’s hot summer months when air conditioners run continuously.
Current Round Rock Electricity Rates
When shopping for electricity in Round Rock, don’t be fooled by flashy promotions or gimmicky rates that seem too good to be true. The most competitive plans offer transparent pricing without complex tiered structures or conditional bill credits that only apply at specific usage levels. These bill credits can increase your costs if your monthly consumption falls outside the narrow usage band where the credit applies.
Fixed-rate plans currently offer Round Rock residents the most stability, especially heading into summer when electricity demand peaks across Texas. The best rates now hover between 14 and 18 cents per kWh for standard 12-month contracts, though prices vary based on your specific usage pattern and the plan’s terms.
| Provider | Plan name | Term | Rate (¢/kWh) |
|---|---|---|---|
|
Frontier Utilities |
Frontier Saver Plus 12 |
12 months |
10.9 |
|
Express Energy |
Flash 12 |
12 months |
11.0 |
|
Gexa Energy |
Gexa Eco Saver Plus 12 |
12 months |
11.0 |
|
Express Energy |
Flash 24 |
24 months |
11.0 |
|
4Change Energy |
Maxx Saver Select 24 |
24 months |
11.0 |
|
4Change Energy |
Maxx Saver Select 12 |
12 months |
11.0 |
|
Gexa Energy |
Gexa Eco Saver Plus 24 |
24 months |
11.0 |
|
Frontier Utilities |
Frontier Saver Plus 24 |
24 months |
11.0 |
|
Cirro Energy |
Simple Bill Credit 24 |
24 months |
11.4 |
|
Cirro Energy |
Simple Bill Credit 12 |
12 months |
11.4 |
|
Tri-Eagle Energy |
Simple Savings 12 |
12 months |
15.8 |
|
Frontier Utilities |
Frontier Budget Saver 12 |
12 months |
16.3 |
|
Veteran Energy |
Secure 12 |
12 months |
16.3 |
|
4Change Energy |
One Rate 24 |
24 months |
16.7 |
|
4Change Energy |
One Rate 12 |
12 months |
16.7 |
|
Gexa Energy |
Gexa Light Saver 12 |
12 months |
17.2 |
|
Frontier Utilities |
Platinum 12+ |
12 months |
18.4 |
|
TXU Energy |
Simple Rate 12 |
12 months |
19.3 |
|
Payless Power |
12 Month – Prepaid |
12 months |
19.3 |
|
Gexa Energy |
Gexa Eco Saver Advantage 12 |
12 months |
21.2 |
Rates are updated as of May 2025, based on the Oncor service area for the ZIP code 75001. The average rates apply to a home with a monthly usage of 1,000 kWh.
Average Electricity Rates in Round Rock
The average electricity rate in Round Rock currently is around 17.0 cents per kWh for residential customers, based on our most recent rate data. This is slightly higher than the Texas state average of 15.30 cents per kWh reported by the U.S. Energy Information Administration (EIA). However, you can find rates below the statewide average by carefully comparing energy providers and selecting the right energy plan for your Round Rock home.
What Makes a Good Rate in Round Rock?
A fixed rate between 14 and 18 cents per kWh in Round Rock’s energy market is a good value. Favorable plans offer rate stability for 12 to 24 months with minimal early termination fees (ETFs) and no hidden charges.
Factors affecting Round Rock rates include a strong regional economy, the proximity to Austin’s tech corridor and Oncor’s infrastructure investments to support growth. Being part of the ERCOT grid allows residents to benefit from Texas’s wind and solar resources, which help moderate electricity prices seasonally.
Watch for plans with low teaser rates that increase significantly after the introductory period or those tied to specific usage amounts to qualify. The most problematic plans often hide true costs in complex pricing structures, cancellation fees or minimum usage charges, raising your effective rate significantly.
Top Recommended Electricity Companies in Round Rock
Round Rock’s electricity market features more than 50 retail providers vying for your business, with Oncor functioning as the transmission and distribution utility (TDU) responsible for maintaining the power lines and infrastructure, no matter which provider you select.
The Public Utility Commission of Texas (PUCT) states that residents of Round Rock can choose between providers, including both large, established companies and smaller, innovative firms that offer specialized plans. The top-rated providers are known for their transparent pricing, responsive customer service, and reliable billing—elements that are just as crucial as securing the lowest rate possible.
To help you make an informed decision, we reviewed nearly 100 light companies across Texas. We built out this review using firsthand customer data using our February 2025 survey of 1,600 Texans living in deregulated areas across Texas. With customer feedback, we reviewed providers across the following key categories: Customer service, customer experience, online experience and customer retention.
Our top-rated light companies include TriEagle Energy, Reliant Energy, TXU Energy and Green Mountain Energy.
Check out other high-rated light companies below.
| Provider | Top Recommended Plan | Our Score | PUCT Rating |
|---|---|---|---|
|
Green Mountain Energy |
Pollution Free e-Plus 24 |
4.9 |
4 |
|
Reliant Energy |
Power Savings 12 |
4.9 |
4 |
|
Champion Energy |
Champ Saver-24 |
4.9 |
5 |
|
TXU Energy |
Simple Rate 12 |
4.9 |
5 |
|
TriEagle Energy |
Simple Savings 12 |
4.8 |
3 |
|
Express Energy |
Express 12 |
4.8 |
N/R |
|
4Change Energy |
One Rate 24 |
4.7 |
N/R |
|
Discount Power |
Wise Buy 12 |
4.7 |
2 |
|
Gexa Energy |
Gexa Light Saver 12 |
4.6 |
3 |
|
Direct Energy |
Live Brighter Lite 24 |
4.6 |
4 |
|
Frontier Utilities |
Frontier Budget Saver 24 |
4.5 |
3 |
Understanding Round Rock’s Energy Market
Round Rock’s energy deregulation began in 2002, when Texas Senate Bill 7 took effect across much of the state. This legislation broke up monopolies and introduced competition to the electricity market, allowing Round Rock residents to shop for power like they would for internet or phone service.
The Electric Reliability Council of Texas (ERCOT) manages the flow of electric power to Round Rock homes and businesses, coordinating electricity delivery across 90% of the state.
In Round Rock’s deregulated market, Oncor maintains the physical infrastructure that delivers electricity to your home. Retail providers compete for your business by purchasing wholesale electricity from generators and creating consumer-facing plans. This separation of responsibilities allows for market competition while maintaining the reliability of the physical grid.
How To Choose the Right Electricity Plan
Finding the right electricity plan in Round Rock involves more than simply choosing the provider advertising the lowest rate. The best plan for your home depends on your specific usage patterns, preferences for renewable energy and tolerance for price fluctuations.
- Assess your usage: Energy plans charge different rates at 500, 1,000 and 2,000 kWh. Review your past electricity bills to gauge monthly consumption over a full year.
- Evaluate price stability versus flexibility: Extreme climate conditions in Round Rock might necessitate predictable bills over the lowest rate. Fixed-rate plans provide stability but may be pricier than variable plans that fluctuate with market conditions.
- Look beyond advertised rates: Many Round Rock providers promote attractive rates at specific usage levels. Check the electricity facts label (EFL) to clarify the effective rate at various consumption levels matching your usage.
- Check minimum usage requirements: Some plans impose fees for usage below a certain threshold. These can be challenging for efficient homes or during Round Rock’s mild spring and fall months when energy consumption decreases.
- Examine renewable energy options: Due to a boom in both wind and solar power, you can access affordable 100% green energy in Round Rock without having to invest in solar panels for your home. Consider renewable energy to protect the environment without incurring high energy rates.
Types of Electricity Plans
Living in a deregulated area of Texas, you’ll find hundreds of energy plans from dozens of light companies. However, most plan types fall into one or more of the following categories.
- Fixed-rate plans: Lock in your energy rate for the contract duration
- Green energy plans: Offer 100% green energy from Texas wind and solar farms
- No-deposit plans: Include no credit check or security deposit
- Variable-rate plans: Bypass long-term contracts but have monthly rate changes
- Bill credit plans: Give a discount when your usage meets a strict kWh threshold
- Time-of-use plans: Offer cheap—even zero-cost—energy rates during off-peak hours
Before signing up for any plan mentioned above, consider your home’s energy usage. For example, while free nights electricity may sound like a can’t-miss opportunity, the truth is your daytime rates may bust your budget. Meanwhile, bill credit plans, which often initiate savings at 1,000 or 2,000 kWh, may help you save in summer when usage tends to spike. But if your energy consumption dips below the discount kWh level in spring and fall, you may find yourself paying over 24 cents per kWh, more than double the advertised rate.
We recommend fixed rates for competitive pricing and predictable monthly energy costs, season after season. Green energy plans may also suit your needs, as they often come with fixed rates, helping you save while reducing your home’s environmental impact.
On the other hand, prepaid, no-deposit plans can suit some customers’ needs. However, we only recommend no-deposit plans from Payless Power, as it offers fixed rates with six or 12-month contracts, leading to predictable costs. Most other prepaid light companies only offer variable rates, which lead to unpredictable energy bills.
Business Electricity Rates in Round Rock
Business electricity rates in Round Rock—and across the Lone Star State—average 9.0 cents per kWh, according to March 2025 data from the EIA. Commercial energy costs generally run lower than residential rates due to businesses’ higher demand and more consistent usage patterns. With major employers like Dell Technologies and a growing retail sector anchored by Round Rock Premium Outlets, commercial energy is a significant market segment in the city.
Round Rock’s Economic Development Partnership offers consultation services for businesses seeking to optimize energy costs. Many commercial properties qualify for energy efficiency incentives through Oncor and city programs. The city’s business-friendly reputation extends to its energy market, where competition among providers has created specialized commercial plans designed for everything from small retail shops to large industrial operations.
Making the Switch: How To Change Providers
The best time to switch electricity providers in Round Rock is 30 to 60 days before your contract expires, avoiding ETFs and securing competitive rates.
If you want to find the best rates, you may find cheap energy plans in spring and fall, when mild weather reduces energy demand, causing electricity rates to drop. On the other hand, the extreme temperatures and unpredictable weather conditions of summer and winter often cause energy prices to increase dramatically.
Steps To Switch Providers
- Shop for plans in your neighborhood: Enter your ZIP code on an energy comparison marketplace like Home Energy Club to compare providers, plans and rates in your area.
- Filter plans based on your needs: Whether you want green energy, prepaid pricing or a plan with free energy usage, you can filter your plan offerings to find the best option for your needs. Don’t forget to compare plans at the right usage level for your home.
- Sign up with your provider: After you find the right plan for your Round Rock home, you can sign up for your new energy plan online or over the phone in five minutes. Your new light company will coordinate the switch with Oncor and your previous provider. You shouldn’t experience any lapse in service.
Before switching energy providers, check your current contract for any cancellation charges.
Round Rock Power Infrastructure and Outages
Oncor Electric Delivery maintains Round Rock’s electricity infrastructure, overseeing poles, wires and transformers that deliver power to homes and businesses, regardless of the retail provider. In case of outages, residents should contact Oncor directly at 888-313-4747 or via the Oncor Storm Center website, rather than their retail provider.
After the February 2021 winter storm that caused widespread outages in Texas, Oncor implemented significant weatherization improvements in Round Rock’s power grid, including better insulation and enhanced capacity for extreme summer and winter demand. The growing population has led to infrastructure investments, with new substations serving expanding developments in northeast Round Rock and along the I-35 corridor.
Frequently Asked Questions
What company has the cheapest electricity rates in Round Rock?
The provider with the cheapest electricity rates in Round Rock changes regularly as companies adjust their pricing. Currently, several providers, including Frontier Utilities, Gexa Energy, and Rhythm, offer rates below 11.0 cents per kWh for 1,000 kWh usage. However, these cheap rates come from bill credit plans, which don’t suit all usage levels. Check your home’s usage and evaluate it against the details in the EFL before signing up for a bill credit plan.
What company provides electricity service to Round Rock?
Oncor is the utility company that delivers electricity to all Round Rock homes and businesses and maintains the power lines and infrastructure. However, as a deregulated market, Round Rock residents can choose from over 50 electricity providers who compete to sell them power, including major companies like TXU Energy, Reliant, and Constellation.
How much does electricity typically cost in Round Rock?
Assuming the statewide average of 15.30 cents per kWh and the average usage level of 1,146 kWh per month, the average Round Rock energy bill may be around $175.34. Note that this is just an estimate based on the most recent rate and usage data from the EIA. Your monthly energy costs in Round Rock will vary based on your usage, energy plan and provider.
What’s the best electricity company in Round Rock for homeowners?
The best electricity company depends on your specific priorities, but our top-rated providers serving Round Rock include TXU Energy, Reliant Energy and TriEagle Energy. Rhythm Energy also earns a top spot in our recommendation due to its competitive prices on 100% green energy plans.
Our Rating Methodology
The This Old House Reviews Team supports our energy provider ratings and recommendations with a transparent, research-backed provider review methodology. Our process includes surveying electricity customers in deregulated markets like Texas, analyzing customer review trends, conducting mystery shopping, and consulting with energy experts. Each provider is scored based on performance in customer satisfaction, loyalty, digital experience, and service quality to produce a final rating on a 5-point scale.