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Pros and Cons

According to our expert

In this review, we explain in clear language where Frank Energie scores strongly and what points of interest you should take into account before choosing this gas & electricity deal Frank Energie Indexed.

Pros

  • + Automatically benefit from market price drops, as your tariff adjusts with wholesale energy prices.
  • + Invoices are sent exclusively by email.
  • + Pay by bank transfer or direct debit, allowing you to choose the payment method that best suits your preferences and cash flow.
  • + Customer support is available both by phone and online, giving you multiple ways to get assistance when needed.

Contras

  • − Your energy supply is not fully guaranteed to come from renewable or green energy sources.
  • − If market prices rise, your bill will increase accordingly, as your rate follows market fluctuations.

Product score

3,4 / 5
Price per kWh
66%
Price per kWh Gas
76%
Energy source
0%
Customer service
100%
Billing method
50%
Payment methods
100%
Specifications

Product details & important information

1-2 people €106 /mo
3-4 people €318 /mo
5+ people €526 /mo
Electricity
Fixed fee €50.04 /yr
Usage fee electricity c€18.68 /kWh
Usage fee electricity (daytime) c€18.68 /kWh
Usage fee electricity (night/w-e) c€18.68 /kWh
Usage fee electricity (night only) c€18.68 /kWh
Feed-In fee c€6.80 /kWh
Energy source Non-renewable
Feed-in type Indexed price
Energy sharing €0 /yr
Tariff card Not yet published
Gas
Fixed fee €35.04 /yr
Gas usage fee c€7.82 /kWh
Tariff card October 2026
Tariff plan Indexed price
Customer service By phone and online
Billing options Digital only
Payment method Bank transfer or direct debit
Contract duration Indefinite
Notice period 1 month
Available in Flanders
Target audience Consumer
Promotions

Which promotions & discounts are included?

Overview of current promotions and offers from Frank Energie Indexed.

Currently, we don't have a record af any promotions or discounts for Frank Energie Indexed. Some providers opt to simply offer their best offer already by default, without the fine print and promotional conditions.

Evert E.Evert E. — Energy expert

Estimated annual price

Estimate your monthly and annual cost

What is the postcode/city of the connection address?

Frank Energie Indexed is a variable rate. We always make the best possible estimate of the annual price of each contract. We calculate these according to the expected energy prices for the next 12 months. However, prices may change due to changing market conditions or government decisions. The price calculation is based on october 2026 tariffs.

Evert E.Evert E. — Energy expert

Price simulation

Energy price simulation based on your profile

To make all these tariffs and prices a bit more tangible, you will find here an estimate of advance payment amount and final bill for each different consumption profile.

  • Flanders
  • Wallonia
  • Brussels
Last update : 9 october 2026

1-2 people

Small family

Electricity: 600 kWh

Gas: 7.560 kWh

€106 /mo
≅ €1,272 /yr
Elektriciteit
Energiekost
Vaste vergoeding
€ 50,04
Verbruikskost elektriciteit
€ 112,07
Bijdrage hernieuwbare energie
€ 6,96
WKK Bijdrage
€ 2,23
Subtotaal € 171,30
Netkosten bij Fluvius Antwerpen
Subtotaal € 198,36
Taksen en Heffingen
Subtotaal € 29,26
Aardgas
Energiekost
Vaste vergoeding
€ 35,04
Verbruikskost gas
€ 591,21
Subtotaal € 626,25
Taksen en Heffingen
Subtotaal € 82,62
Netkosten bij Fluvius Antwerpen
Subtotaal € 164,14
Jaartotaal € 1.271,93 /jr
Gem. per maand € 105,99 /mnd

3-4 people

Average family

Electricity: 3.500 kWh

Gas: 23.260 kWh

€318 /mo
≅ €3,816 /yr
Elektriciteit
Energiekost
Vaste vergoeding
€ 50,04
Verbruikskost elektriciteit
€ 653,75
Bijdrage hernieuwbare energie
€ 40,60
WKK Bijdrage
€ 12,98
Subtotaal € 757,38
Netkosten bij Fluvius Antwerpen
Subtotaal € 432,90
Taksen en Heffingen
Subtotaal € 170,66
Aardgas
Energiekost
Vaste vergoeding
€ 35,04
Verbruikskost gas
€ 1.818,98
Subtotaal € 1.854,02
Taksen en Heffingen
Subtotaal € 264,35
Netkosten bij Fluvius Antwerpen
Subtotaal € 332,20
Jaartotaal € 3.811,50 /jr
Gem. per maand € 317,62 /mnd

5+ people

Large family

Electricity: 7.500 kWh

Gas: 34.890 kWh

€526 /mo
≅ €6,312 /yr
Elektriciteit
Energiekost
Vaste vergoeding
€ 50,04
Verbruikskost elektriciteit
€ 1.400,90
Bijdrage hernieuwbare energie
€ 87,00
WKK Bijdrage
€ 27,82
Subtotaal € 1.565,76
Netkosten bij Fluvius Antwerpen
Subtotaal € 756,39
Taksen en Heffingen
Subtotaal € 365,70
Aardgas
Energiekost
Vaste vergoeding
€ 35,04
Verbruikskost gas
€ 2.728,47
Subtotaal € 2.763,51
Taksen en Heffingen
Subtotaal € 401,93
Netkosten bij Fluvius Antwerpen
Subtotaal € 456,68
Jaartotaal € 6.309,97 /jr
Gem. per maand € 525,83 /mnd
Frank Energie Indexed is NOT available in Wallonia.
Frank Energie Indexed is NOT available in Brussels.

VAT included. Monthly, annual and one-off charges are settled on a monthly basis.

Price chart

Price history of Frank Energie Indexed

How has the price of Frank Energie Indexed evolved over the past period? Has the price increased, or has the kwh price decreased? And how does Frank Energie Indexed compare with other tariffs in the market?

Keep in mind that Frank Energie regularly gives discounts to new customers. As a result, their kWh price is often even more interesting than "standard price". The kWh prices in the chart are the standard prices without discounts.

Evert E.Evert E. — Energy expert

Price evolution variable tariffs Electricity

Price evolution variable tariffs Gas

VAT included

About Frank Energie

Who is Frank Energie?

Frank Energie is an energy supplier active in Belgium, offering electricity and natural gas to residential customers. Frank Energie focuses on dynamic energy contracts, where the electricity price can change hourly and the gas price can change daily based on wholesale market prices. This makes Frank Energie different from more traditional suppliers that mainly offer fixed or variable tariffs. Its services are especially suitable for households that want to monitor their usage in an app and are willing to adjust energy consumption to market conditions.

Comparison

Frank Energie Indexed vs competitors: Features and Pricing Compared

Forewarned is forearmed. Frank Energie Indexed serves as the benchmark product in this comparison. In which areas does Frank Energie Indexed outperform other gas & electricity tariffs, and in which not so much?

Downsizing

This gas & electricity deal consists of

If you don't need everything from this package, you can also choose to order only a separate component.

Documents and attachments

Downloadable rate cards and attachments

An energy rate card summarises the most important information about an energy contract, such as the type of contract (fixed, variable or dynamic), the price per kWh, the fixed fee, any indexation formulas, duration and termination conditions. You will also find information on discounts, green electricity, injection tariffs for solar panels, network tariffs and an estimate of the annual cost. Here you will find an overview of all current and past rate cards of Frank Energie Indexed.

Previous rate cards — Electricity

  • 2023
  • 2024
  • 2025
  • 2026

Looking for older Frank Energie rate cards, from 2022 or earlier? Contact us, our internal price list archive goes way back to 2012 (!). We will do our best to get you the right rate card.

Evert E.Evert E. — Energy expert

Questions & answers

Still have questions?

Below you will find answers to the most frequently asked questions about Frank Energie Indexed. Is your question not listed? Feel free to contact us.

Yes, Frank Energie Variabel is a indexed tariff of indefinite duration, i.e. the consumption price per kWh fluctuates every few month(s). The kWh price can therefore rise and fall during the term of your contract. Frank Energie can alter the price formula at any moment, whilst giving a proper heads up to the customer. You can find all the price information and indexation formula in the tariff sheets.

If you have solar panels (or other generators), and you have generated a surplus of energy, you will receive a feed-in compensation from supplier Frank Energie for this. Better, however, is that you also use all the generated energy yourself, so that you yourself take less from the energy grid. Because even though you get a small fee for generated power, the price you get (c€6.80 /kWh) is much smaller than the power you buy (c€18.68 /kWh), and you also pay grid costs, taxes, excise duties, you name it.

When you switch suppliers, your new supplier Frank Energie takes care of everything. They will contact both your local grid operator and your previous energy supplier. Your switch usually follows 30 days after your request, but you can also choose a switch date yourself up to 6 months in the future. If you have requested a new connection or move, Frank Energie also takes care of everything, and then everything can be set up even faster.

Consumers are always entitled to a free cancellation period of 2 weeks after application. For this, you need to contact your new supplier yourself, or contact your current supplier and ask them to stop the switch. Business users are not entitled to 2 weeks' notice.

No, consumers in Belgium are still allowed to switch suppliers for free, and without giving any reason. You are not bound to a fixed contract duration. However, sometimes early termination means you lose your welcome discounts. We therefore advise you to remain a customer for at least one year before requesting an energy switch.

When the original contract term of 1 or 2 years is about to expire, Frank Energie will notify you. In this, they will offer you a new contract proposal with the same or similar tariff plan. This is the moment you should definitely come and compare your energy contract again on DareToCompare.be.

Frank Energie Indexed is only available in Flanders, not in the other regions.