Bill Literacy

Understanding Your Electric Bill

Most people only look at the total. But your bill has two fundamentally different types of charges — and only one of them is negotiable.

6–7 min read

Texas Energy Bill sitting on breakfast table near coffee and eye glasses

Most people look at one number on their electricity bill: the total amount due. Then they pay it.

That's understandable. Electric bills are not designed to be easy to read. They're dense, jargon-heavy, and structured in a way that makes it genuinely difficult to understand what you're actually paying for — and whether you're being charged fairly.

This article walks through a typical Texas electricity bill line by line, explains what each charge means, and shows you where the real opportunities to save actually are.

The two fundamental parts of your bill

Energy charge (Supply)

This is the core of your supply cost — the price per kWh multiplied by how many kWh you used during the billing period.

Example: If your rate is 11 cents per kWh and you used 1,200 kWh, your energy charge is $132.

This is the number most people focus on when shopping plans. It matters — but it's not the whole story (more on that in a moment).

Base charge or customer charge (Supply)

Many REPs charge a flat monthly fee just for having an account with them — regardless of how much electricity you use. This can range from $0 to $10 or more per month.

This charge is easy to miss when comparing plans because it's not reflected in the advertised per-kWh rate. A plan with a low rate and a high base charge can easily cost more than a plan with a slightly higher rate and no base charge, depending on your usage.

TDU delivery charge (Delivery)

This is the charge from your transmission and distribution utility for maintaining the infrastructure that delivers electricity to your home. It covers the poles, wires, transformers, and metering equipment in your neighborhood.

The TDU delivery charge typically has two components:

A fixed monthly charge (a flat fee regardless of usage)
A variable charge based on kWh used

These charges are set by the PUCT, not by your REP. They are the same no matter which provider you choose. We cover TDU charges in much more detail in the next article — What Are TDU Charges and Why Do You Pay Them?

Transmission charge (Delivery)

A separate line item from TDU delivery, the transmission charge covers the high-voltage lines that move electricity from power plants across the state to your local distribution network. Like TDU delivery charges, this is non-negotiable and the same regardless of your REP.

Distribution charge (Delivery)

The distribution charge covers the lower-voltage local network — the lines from the substation to your street. Again, set by your TDU and non-negotiable.

Metering charge (Delivery)

The cost of reading your meter and managing your usage data. Typically a small flat monthly fee. Non-negotiable.

State and local taxes and fees

Texas electricity bills include various taxes and fees, which may include:

State sales tax (6.25% on electricity)
Local franchise fees — charged by municipalities and passed through to customers
ERCOT administrative fees — small charges that fund grid management

These are standardized and non-negotiable.

Renewable energy charge or green fee (if applicable)

Some plans include a charge for renewable energy certificates (RECs) — essentially a premium for electricity matched to renewable sources. If you're on a green energy plan, this will appear as a separate line item. It's part of your supply agreement and was disclosed when you signed up.

Early termination fee (if triggered)

Not a regular monthly charge, but worth knowing: if you end your contract before the term expires, most fixed rate plans include an early termination fee (ETF) — typically $100–$200 or a per-month-remaining calculation. This should be clearly stated in your contract. If you're not sure whether your plan has one, check your Electricity Facts Label (EFL) — more on that below.

The Electricity Facts Label (EFL)

Every electricity plan sold in Texas is required by law to come with an Electricity Facts Label — a standardized one-page disclosure document that shows:

The advertised rate at 500, 1,000, and 2,000 kWh usage levels
All fees and charges
The contract term and early termination fee
The fuel mix and renewable content

The EFL is the document that makes real plan comparison possible. When Mike evaluates plans on your behalf, the EFL is one of the first things he looks at — because the advertised rate and the EFL rate at your actual usage level are often different numbers.

The number most people miss

Here's something that surprises most people: the advertised per-kWh rate on a plan is calculated at 1,000 kWh of monthly usage. If you use significantly more or less than that, your effective rate is different.

Plans with base charges look cheaper at high usage levels (the base charge gets spread across more kWh) and more expensive at low usage levels (the base charge is a larger percentage of a smaller bill).

This is why Mike asks about your usage history before recommending anything. The best plan for someone using 800 kWh a month is not necessarily the best plan for someone using 1,800 kWh a month — even if the advertised rate is identical.

What you can and can't control

You can control:

Which REP you use and what supply rate you pay
The contract term and structure you agree to
When you shop — timing the market can make a meaningful difference

You cannot control:

TDU delivery charges
State taxes and fees
ERCOT administrative fees
How much electricity you use (within reason — efficiency measures help at the margins)

The supply portion of a typical Texas electricity bill represents roughly 50–60% of the total. That's the portion worth shopping. The rest is fixed infrastructure cost.

The bottom line

Your electricity bill has more moving parts than most people realize — but once you understand the structure, it becomes much easier to evaluate whether you're getting a fair deal. The supply charges are negotiable. The delivery charges are not. The EFL tells the real story that the advertised rate doesn't.

Most people overpay not because they're making bad decisions but because they don't have the information to make good ones.

Ready to see what you should be paying?

A free rate review takes under a minute to start.

Mike reviews your current rate, shops the market on your behalf, and walks you through your options in plain language. No pressure. Suppliers pay his commission — not you.

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