Electricity bills often seem complicated: tables, numbers, charges, and terms that are hard to understand at first glance. However, your electricity bill contains all the critical information about what you are actually paying, how the cost is formed, and where each charge goes — as long as you know how to read it. In the text below, you’ll see what an electricity bill includes and how to “translate” each charge in a simple and understandable way.
Consumption in kWh – your actual energy use
Every electricity bill starts with kilowatt-hours (kWh), which represent the amount of electrical energy your home or business consumed during the billing period
Consumption is calculated from the difference between the previous and current meter readings. In some cases, the bill is issued as an “estimated” one, based on projected consumption — with the actual measurement settled in a later cycle.
Checking the meter reading yourself is an easy way to confirm that the charge reflects your real usage. If you notice a sudden increase in kWh without a change in habits, there may be an appliance with high consumption or an issue with the electrical installation.
Supply charge – the price of kWh from the provider
The supply charge is the amount collected by the electricity provider. It is expressed as a price per kWh and is the main point of differentiation between companies
You will generally encounter two types of contracts:
Fixed-rate plans, where the kWh price remains the same throughout the contract period.
Variable-rate plans, where the price changes monthly based on specific energy market indicators.
This section of the bill clearly shows how much you pay for your consumption. If you are considering changing provider or plan, this price is the main comparison factor.
Regulated charges – independent of the provider
Regulated charges are set by the state and are the same for everyone, regardless of provider. They relate to the overall operation and support of the national electricity system and include:
PSO (Public Service Obligations): covering costs for islands, social tariffs, etc.
HEDNO: maintenance and operation of the low-voltage network.
IPTO: transport of electricity through the high-voltage grid.
RES:Renewable Energy support charges (where applicable).
These charges are not negotiable and do not change when switching providers. Although consumers cannot influence them, it’s important to know they make up a significant portion of the final bill.
Fixed fee – a flat charge per billing period
The fixed fee is a set amount charged by the provider, unrelated to consumption. It covers operational costs, customer service, billing management, and other services.
Some plans offer a low or zero fixed fee, while others have a higher one paired with a more competitive kWh price.
For very low-consumption users, a high fixed fee can noticeably increase the total cost.
Municipal charges and other fees
This section does not relate to electricity itself but includes charges in favor of municipalities:
municipal cleaning and street lighting fees,
municipal tax,
any other local charges.
These are calculated based on the declared square meters of the property, not on kWh consumption.
If the square meter data is incorrect, these charges are directly affected.
Taxes and total amount
In the final summary table, all the above charges are combined along with taxes, mainly VAT, which is applied to the supply charge, regulated charges, and the fixed fee.
The total amount payable results from the sum of:
energy cost (kWh × price),
regulated charges,
fixed fee,
municipal charges,
and the corresponding taxes.
How to make better use of your electricity bill
An electricity bill may look like just a number to be paid, but in reality, it is an information tool. It helps you understand consumption habits, assess whether your contract is cost-effective, and spot unusual charges or potential faults.
As a consumer, there are only two factors you can influence: actual kWh consumption and the choice of plan/provider. Everything else — regulated charges, municipal fees, and taxes — remains the same regardless of the contract.
The better you understand the structure of your bill, the easier it becomes to make choices that reduce costs and improve the energy management of your space.
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