SMT Usage Analyzer

Free Nights Calculator

Upload your Smart Meter Texas interval CSV, measure how much of your electricity usage falls inside the free window, and estimate whether your home's usage pattern can outperform competitive True Fixed plans.

How the Free Nights Calculator Works

Enter your ZIP code and select the contract term you want to evaluate.
Upload your Smart Meter Texas CSV file with your real 15-minute electricity usage data. If you do not know how, follow the step-by-step guide below.
Select the Free Nights plan you want to test.
Select a competitive True Fixed plan from the market for comparison.
Review your results. The tables will show whether the Free Nights plan can beat the fixed-rate plan based on your real usage.
If the Free Nights plan does not beat the fixed plan yet, you can adjust your habits, shift more usage into the free window, and test again.

Start Your Free Nights Plan Analysis

To start the analysis, we need your ZIP code (to find rates and TDU that apply to your area), the contract term range you want (12-23, 24-35, or 36+ months), and the CSV file downloaded from Smart Meter Texas with your interval usage data.

Step 1: Confirm ZIP code and TDU

✕ Incomplete

Enter ZIP first. We use this to identify the correct TDU zone.

Step 2: Select term range

✕ Incomplete

Select the term range you want to evaluate before plan matching.

Step 3: Upload SMT CSV and analyze

This step is locked until ZIP, TDU, and term range are confirmed.

Click to upload or drag and drop

CSV only (max 12MB)

Privacy note: Your Smart Meter Texas CSV may contain detailed electricity usage information. We use this file only to calculate your Free Nights analysis. We do not sell your usage data, use it for advertising, or share your uploaded CSV with electricity providers.

Step-by-step Guide

How to Download Your Smart Meter Texas Data

To compare Free Nights electricity plans, you first need your Smart Meter Texas usage file. This file shows your electricity usage in 15-minute intervals, which helps estimate how much energy you use during the free-night window.

Step 1: Go to Smart Meter Texas

Go directly to SmartMeterTexas.com and log in with your username and password.

If you do not have an account yet, you will need to create one first. Most Texas homes already have a smart meter, so most users should be able to access this data.

Smart Meter Texas login page where users enter credentials

Step 2: Request and Export 15-minute Data

  • Select report type: Energy Data — 15 Minute Interval.
  • Select your start date (we recommend about one year ago) and set end date to today.
  • Click Export My Report.

This generates a CSV file. If you have a full year of data, the file may be around 3 MB. If you recently moved into your home or apartment, your file may be smaller because there is less usage history available.

Smart Meter Texas dashboard showing report type, start date, end date, and Export My Report

Step 3: Open the Free Nights Calculator

Next, go to ClearEnergyFacts.com and open: Tools → Free Night Calculator.

Now you can check your real daily electricity usage and compare it against Free Nights electricity plans. This helps you decide whether a Free Nights plan is actually a good option for your home based on your real usage data, not just advertised rates.

Clear Energy Facts page highlighting Tools and Free Night Calculator

About this calculator / methodology / disclaimer

About This Free Nights Calculator

The Free Nights Calculator was developed by Clear Energy Facts to help Texas electricity customers better understand whether a Free Nights plan may work for their home.

This tool uses your Smart Meter Texas interval data to estimate how much of your electricity usage happens during the free-night window and compares that result against competitive True Fixed electricity plans.

Our goal is to bring more transparency to Texas electricity plans and help customers make better decisions using real usage data instead of advertised rates alone.

Technical Methodology

The calculator analyzes your 15-minute Smart Meter Texas usage file and groups your electricity consumption into free-window and non-free-window periods based on the selected Free Nights plan.

It then compares the estimated cost of the Free Nights plan against a competitive True Fixed plan available in the market. The result is intended to show whether your current usage pattern is strong enough to make the Free Nights plan competitive.

This tool is an estimate, not a guarantee. Final bills can vary based on provider rules, TDU delivery charges, base charges, taxes, fees, contract terms, and changes in electricity pricing.

Privacy Note

Your Smart Meter Texas CSV may contain detailed electricity usage information. Clear Energy Facts uses this file only to calculate your Free Nights analysis.

  • We do not sell your usage data.
  • We do not use your raw interval data for advertising.
  • We do not share your uploaded CSV with electricity providers.

Important Disclaimer

The Free Nights Calculator is a comparison and education tool. It can make mistakes and should not be treated as a guarantee of savings.

Always review the official Electricity Facts Label before enrolling in any electricity plan. Confirm the final rates, TDU charges, base charges, contract term, cancellation fees, solar restrictions, and free-night rules directly with the provider.

Clear Energy Facts is not responsible for enrollment decisions, billing outcomes, provider pricing changes, or differences between estimated and actual bills. You should always do your own calculations before choosing an electricity plan.

Free Nights Calculator FAQs

What is the Free Nights Calculator?
The Free Nights Calculator helps you test whether a free-night electricity plan can actually save you money based on your real electricity usage. Instead of relying only on advertised rates, it uses your Smart Meter Texas interval data to estimate how much electricity you use during the free window.
How does the Free Nights Calculator work?
First, enter your ZIP code and select the contract term you want to evaluate. Then upload your Smart Meter Texas CSV file and click Analyze My Usage. In the next window, you can select a Free Nights plan and compare it against a competitive True Fixed plan. The calculator shows whether the free-night plan can beat the fixed-rate option based on your actual usage.
What file do I need to upload?
You need to upload your Smart Meter Texas interval CSV file. This file contains your electricity usage in 15-minute intervals, which allows the calculator to measure how much electricity you use during the plan's free-night hours.
What does "free-window percentage" mean?
The free-window percentage is the share of your total electricity usage that happens during the plan's free-night window. The higher this percentage is, the better your chance of making a Free Nights plan work.
Can a Free Nights plan beat a True Fixed plan?
Yes, but only if enough of your electricity usage happens during the free-night window. The calculator compares your selected Free Nights plan against a competitive True Fixed plan so you can see whether the savings are realistic.
Does this Free Nights Calculator guarantee savings?
No. The calculator provides an estimate based on your Smart Meter Texas usage data, the selected Free Nights plan, and the fixed-rate plan used for comparison. It should be used as a guide, not as a guarantee of savings.
Can I test different Free Nights plans?
Yes. After uploading your Smart Meter Texas data, you can change the Free Nights plan in the filter and compare different options without uploading the file again. This makes it easier to see which plan fits your electricity usage best.
What if the Free Nights plan does not beat the fixed-rate plan?
That means your current electricity usage may not shift enough electricity into the free window. In many homes, the biggest issue is daytime thermostat settings. You can adjust your habits, increase thermostat settings during paid daytime hours, move more usage to free-night hours, and test again to see if the plan becomes more competitive.
Does the Free Nights Calculator work if I have solar panels?
No. The Free Nights Calculator is designed to analyze electricity consumption from your Smart Meter Texas interval CSV. It only looks at how much electricity your home uses during the free-night window.
The calculator has not been tested with solar generation, exported energy, net metering, or data showing electricity sent back to the grid. If you have solar panels, you should not rely on this tool to evaluate a Free Nights plan. Always confirm directly with the electricity provider, since some time-of-use plans may not support solar customers or may handle solar usage differently.
Is the Free Nights Calculator only for Texas?
Yes. This tool is designed for Texas electricity customers who can download usage data from Smart Meter Texas and compare retail electricity plans available in their area.
Should I still read the EFL before signing up?

Yes. The Free Nights Calculator is a comparison tool designed to help you estimate whether a plan may work for your home, but it can make mistakes and should not be treated as a guarantee.

Always review the official Electricity Facts Label, confirm the final rates, base charges, delivery charges, contract term, cancellation fees, and free-night rules directly with the electricity provider before enrolling. Clear Energy Facts is not responsible for enrollment decisions, billing outcomes, or changes in provider pricing.

You should always do your own calculations before choosing an electricity plan.