Usage Calculator

This calculator shows how charges change with usage. Change the kWh on the calculator to see how it affects your monthly charges. 

 

 

Understanding your Residential bill

See what changes when you use
more or less electricity.

Move the kWh amount to explore four parts of a sample DEMCO bill. The sample prices stay the same as you change usage.

01 Change the kWh

kWh (kilowatt-hours) measures how much electricity you use.

0 kWh7,500 kWh
750 kWh1,500 kWh2,250 kWh

The example keeps the same prices at every usage level. Standard residential base rates do not change for summer or winter.

02 See the sample charges

Total of these four sample parts$291.591,996 kWh

Select a line to see what it means.

Grid Access ChargeFixed each month$16.50

The monthly charge for access to the electric grid. It stays the same as kWh changes in this example.

Delivery ChargeBased on your kWh$86.01

A charge for delivering electricity to your home. This example uses the January 2026 standard residential delivery rates: $0.03985 per kWh for the first 1,000 kWh and $0.04635 per kWh for additional usage.

Wholesale Power ChargePower cost passed through$195.07

The cost of wholesale electricity shown here at a sample rate of $0.09674 per kWh. Actual power costs can vary.

Formula Rate Plan (FRP)Yearly adjustment · sample credit−$5.99

A sample credit of $0.003 per kWh for this illustration. Your actual FRP adjustment can differ.

Your full bill may have other charges, credits, or taxes. Check your bill for your actual amounts.

03 Rates and tariff: what is the difference?

Rates

The prices

Rates are the prices used to work out charges, such as the price for each kWh in the Delivery Charge.

Tariff

The full rulebook

The tariff is the official document with DEMCO’s rates and terms of service. It explains the prices and the rules for electric service. It is not a tax or an extra bill charge.

DEMCO’s tariff was approved by the Louisiana Public Service Commission in 2025 and took effect in January 2026. Your usage can change from month to month even when base rates do not.

View DEMCO rates and terms of service