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Pros and Cons

According to our expert

In this review, we explain in clear language where Trevion scores strongly and what points of interest you should take into account before choosing this electricity Trevion Flex Pro.

Tip! Compare Trevion Flex Pro with its competitors.

Evert E.Evert E. — Energy expert

Pros

  • + Automatically benefit from market price drops, as your tariff adjusts with wholesale energy prices.
  • + 100% renewable energy sourced from green production such as wind, solar, or hydro power.
  • + You can choose to receive invoices either by post or 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

  • − If market prices rise, your bill will increase accordingly, as your rate follows market fluctuations.

Product score

3,1 / 5
Price per kWh
21%
Customer service
100%
Billing method
100%
Payment methods
100%
Energy source
100%
Specifications

Product details & important information

Self-employed €113 /mo
Office €426 /mo
Shop €1,270 /mo
Type of tariff plan Indexed price
Customer service By phone and online
Billing options Digital or on paper
Payment method Bank transfer or direct debit
Fixed fee €49 /yr
Usage fee electricity c€19.21 /kWh
Usage fee electricity (daytime) c€19.21 /kWh
Usage fee electricity (night/w-e) c€19.21 /kWh
Usage fee electricity (night only) c€19.21 /kWh
Feed-In fee c€7.05 /kWh
Energy source 100% green
Feed-in type Indexed price
Energy sharing €120 /yr
Contract duration Indefinite
Notice period 1 month
Available in Flanders
Target audience Business
Tariff card October 2026
Promotions

Which promotions & discounts are included?

Overview of current promotions and offers from Trevion Flex Pro.

Currently, we don't have a record af any promotions or discounts for Trevion Flex Pro. 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?

Trevion Flex Pro 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 : 10 october 2026

Self-employed

Sole proprietor

Electricity: 3.500 kWh

€113 /mo
≅ €1,356 /yr
Energiekost
Vaste vergoeding
€ 49,00
Verbruikskost elektriciteit
€ 672,35
Bijdrage hernieuwbare energie
€ 38,50
WKK Bijdrage
€ 14,70
Subtotaal € 774,55
Netkosten bij Fluvius Antwerpen
Subtotaal € 408,40
Taksen en Heffingen
Subtotaal € 170,58
Jaartotaal € 1.353,52 /jr
Gem. per maand € 112,79 /mnd

Office

Office space

Electricity: 16.000 kWh

€426 /mo
≅ €5,112 /yr
Energiekost
Vaste vergoeding
€ 49,00
Verbruikskost elektriciteit
€ 3.073,60
Bijdrage hernieuwbare energie
€ 176,00
WKK Bijdrage
€ 67,20
Subtotaal € 3.365,80
Netkosten bij Fluvius Antwerpen
Subtotaal € 1.362,10
Taksen en Heffingen
Subtotaal € 379,02
Jaartotaal € 5.106,92 /jr
Gem. per maand € 425,58 /mnd

Shop

Storefront

Electricity: 50.000 kWh

€1,270 /mo
≅ €15,240 /yr
Energiekost
Vaste vergoeding
€ 49,00
Verbruikskost elektriciteit
€ 9.605,00
Bijdrage hernieuwbare energie
€ 550,00
WKK Bijdrage
€ 210,00
Subtotaal € 10.414,00
Netkosten bij Fluvius Antwerpen
Subtotaal € 3.956,17
Taksen en Heffingen
Subtotaal € 864,06
Jaartotaal € 15.234,23 /jr
Gem. per maand € 1.269,52 /mnd
Trevion Flex Pro is NOT available in Wallonia.
Trevion Flex Pro is NOT available in Brussels.

No VAT included. Monthly, annual and one-off charges are settled on a monthly basis.

Price chart

Price history of Trevion Flex Pro

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

Price evolution variable tariffs Electricity

No VAT included

About Trevion

Who is Trevion?

Trevion is a Belgian energy supplier offering electricity and natural gas to households and businesses. The company focuses on a personal approach and on energy solutions that stay close to customer needs. With Trevion, customers can take out an energy contract and also get support related to energy use and energy projects. Trevion is mainly suited to people and companies looking for a supplier with a local presence in Belgium and with attention to both standard energy supply and broader energy-related services.

Comparison

Trevion Flex Pro vs competitors: Features and Pricing Compared

Forewarned is forearmed. Trevion Flex Pro serves as the benchmark product in this comparison. In which areas does Trevion Flex Pro outperform other electricity only prices, and in which not so much?

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 Trevion Flex Pro.

Questions & answers

Still have questions?

Below you will find answers to the most frequently asked questions about Trevion Flex Pro. Is your question not listed? Feel free to contact us.

Yes, Trevion Flex Pro 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. Trevion 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 Trevion 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€7.05 /kWh) is much smaller than the power you buy (c€19.21 /kWh), and you also pay grid costs, taxes, excise duties, you name it.

When you switch suppliers, your new supplier Trevion 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, Trevion 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, Trevion 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.

Trevion Flex Pro is only available in Flanders, not in the other regions.

Order requirements

Which information is required when ordering ?

When you want to order Trevion Flex Pro, you will need to provide some personal data, such as your name, address, contact and connection details. In addition, you must comply with the applicable order requirements of the provider. Both DareToCompare.be and Trevion treat your data carefully and securely, using them exclusively for the processing of your order.

  • Trevion Flex Pro is a business product. You must hold a company VAT number, and be authorised by your company to place an order.