Any product or company names, marks, or logos shown on this page are the property of their respective owners. ComparePower is an unaffiliated, independent marketplace. Get unbiased, accurate information backed by our commitment to editorial integrity.
TXU Energy Free Nights & Solar Days
Just in time for the summer – 100 percent renewable energy with free electricity at night!
TXU Energy is now offering a plan called Free Nights and Solar Days. This plan gives you 100% renewable energy and free electricity at night. We’ll review the facts and discuss the plan details below.
What is TXU Energy Free Nights & Solar Days?
This plan gives you free electricity at night with the added benefits of renewable energy. Get free electricity all night from 9 pm to 6 am and solar electricity all day from 6 am to 9 pm.
Take advantage of clean energy derived from the sun. TXU Free Nights and Solar Days don’t require rooftop solar panels, making it easy to take advantage of the sun whether you live in a house or an apartment.
Free Nights & Solar Days are 100% renewable as TXU Energy purchases solar power and solar and wind renewable energy credits.
“This is a one-of-a-kind plan that gives customers a new, easy, and affordable way to go 100 percent renewable with solar and wind,” said Sydney Seiger, chief marketing officer for TXU Energy.
TXU Energy Free Nights & Solar Days plan details
TXU Energy offers a 12-month and an 18-month term for the Free Nights Solar Days plan.
According to the TXU Energy facts label for the Free Nights & Solar Days 18 plan, the average home in greater Dallas (the Oncor service area) uses 34.70% of its energy during the night hours between 9 pm and 6 am.
Greater Houston (Centerpoint Energy service area) residents use, on average, 34.30% of their energy between the hours of 9 pm and 6 am.
This is when your electricity usage will be free with this plan.
Keep reading to find out if this place is right for you and your household.
Is TXU Free Nights & Solar Days right for you?
Whether or not this plan is right depends on how much of your electricity usage you can shift to the nighttime.
Dallas area customers need to be able to shift a minimum of 34.70% of their energy use to the nighttime hours to get the EFL pricing.
Houston residents need to shift at least 34.30 % of their energy usage to the nighttime to get EFL pricing for this plan.
Whether you can save money with this plan depends on how much energy you can offset to the free night use between 9 pm and 6 am.
The more energy you can offset to the nighttime, the cheaper the plan becomes.
Table 1a and 1b (below) shows the amount of energy
We calculated the price per kWh as a function of the percentage of electricity consumed at night.
TXU Free Nights Solar Days for Dallas – Fort Worth
TXU Free Nights Solar Days for Houston

As you can see from the two tables above. The more energy you can offset to the nighttime, the lower your average price per kilowatt will be and, therefore, the lower your monthly electric bill.
Here are some simple changes that can help maximize the benefits of the Free Nights & Solar Days electricity plan:
- Delaying using large appliances like washing machines and dishwashers during free hours.
- Charging portable electronics during free hours.
- Adjusting programmable thermostat settings.
Free electricity, really?
Yes, electricity is free at night. TXU Free Nights & Free Weekends and TXU Free Nights & Solar Days plans are known as “time of use plans.”
Several electrical providers offer time-of-use plans.
The wind blows hard at night, and storing large amounts of energy over time is cost-prohibitive. Therefore, there is a surplus of energy sold for much less at wholesale during nighttime or off-peak hours.
Electricity companies such as TXU Energy can purchase this surplus much cheaper than energy purchased during peak or daytime hours.
Therefore, it is financially favorable for energy providers to encourage their customers to change their consumption habits to use more energy at night, during off-peak hours, thereby lowering operational costs.
TXU Free Nights and Solar Days Alternatives
There are several alternative electricity plans available in Texas that offer similar features to TXU Energy’s Free Nights & Solar Days plan. Compare the best Free Nights and Weekends energy plans in Texas.
Conclusion and key takeaways
With this plan, you can save money on your electricity bill if you can make some adjustments and shift your daytime usage to the nighttime.
Texas retail electricity pricing can be confusing. Every company has its way of presenting its prices, so numbers can’t easily be compared without hours upon hours of research.
ComparePower solves this problem. All pricing elements for the compared plans are broken down so you can see exactly what to expect on your bill.
TXU Energy Free Nights & Solar Days FAQs
What is TXU Energy Free Nights & Solar Days?
TXU Energy Free Nights & Solar Days is an electricity plan offered by TXU Energy, a retail electricity provider based in Texas. This plan is designed to provide electricity at no cost during certain hours of the day, depending on the plan, in exchange for a slightly higher rate during other hours.
The Free Nights & Solar Days plan includes free electricity usage from 9 pm to 6 am on weekdays and all weekends, while the standard rate applies during the rest of the day. This plan allows customers to save money on their electricity bills by shifting their energy usage to free hours.
The Solar Days plan allows the customer to take advantage of TXU Energy’s renewable energy generation capacity, during days that are labeled as “solar days” the customer will receive 100% of the energy that they use during the day from solar power.
Both plans require the customer to have a smart meter to be able to track usage during peak and non-peak hours and both offers tiered or indexed rate options.
Is TXU Energy Free Nights & Solar Days worth it?
Whether TXU Energy’s Free Nights & Solar Days plan is right for you depends on your specific energy usage needs and preferences. This plan can be a good fit for someone who is able to shift a significant portion of their energy usage to the free hours (9 pm to 6 am on weekdays and all weekends) and is also interested in taking advantage of renewable energy generation.
It’s also important to consider that this plan may not be the best option for those who have high usage during the peak hours (when the standard rate applies), as the higher rate during those hours may offset any savings from the free hours.
It’s also advisable to take into account your lifestyle and habits. If you’re someone who is mostly at home during the non-peak hours or if you have appliances that can be scheduled to run during non-peak hours, the Free Nights & Solar Days plan could be a good option for you. On the other hand, if most of your energy usage occurs during peak hours, this plan may not be the most cost-effective option for you.
It’s recommended to analyze your energy usage and compare different plans to see which one offers the best rate based on your usage, budget, and preferences. Additionally, also review the terms and conditions, as well as cancellation fees, and length of the contract before making a decision.