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What is the difference between a dynamic tariff and a Flex Tariff?

October 29, 2025

FlexiO makes your home energy smarter: it optimises solar use and works with dynamic or Flex Tariffs for lower, smarter energy bills.


FlexiO is a smart energy management system (EMS+) that optimises your energy flows in the home. The goal: to optimise your energy consumption and solar production so that you pay as little as possible for your energy without compromising on comfort.

With FlexiO, you get more out of your solar energy and pay less for grid power.

Dynamic tariff + FlexiO: smarter control, lower bills

If you have a dynamic energy tariff, the price of electricity changes every hour. FlexiO knows these prices a day in advance and will control your battery and/or charging station intelligently to get the most out of your installation.

Because the energy price changes every hour, your FlexiObox can manage your energy even more intelligently than with a fixed or variable energy rate. This results in higher savings, achieved by FlexiO. View all the services that FlexiO EMS+ offers you here.

Flex Tariff + FlexiO: more collaboration, even cheaper energy

The Flex Tariff is a special energy tariff developed by energy suppliers and LIFEPOWR to collaborate with FlexiO. This means there is direct collaboration between your EMS+ and the energy supplier.

What does that mean in concrete terms?

  • LIFEPOWR predicts your daily power consumption and injection.
  • This forecast is shared with your energy supplier.
  • The supplier can then purchase its energy smartly.

Through the collaboration between the energy supplier and FlexiO, we join forces and the energy supplier is no longer exposed to risk margins.

This results in a much cheaper energy tariff for you as a user! Check it out for yourself on the V-test!

What's more, FlexiO controls your battery not only on the basis of the known hourly price, but also on the basis of real-time grid imbalance (via eBalancing). This earns you extra compensation, resulting in even lower energy costs!

Everything is transparently settled on your monthly energy bill. If you have income from rBalancing, this will also be settled via the energy bill.

An important difference: active cooperation with the supplier

We have listed the two rates for you again so you can clearly see the difference

Dynamic tariff + FlexiOFlex Tariff + FlexiO
Local optimisation
Income from rBalancing
Direct participation in eBalancing
Everything settled on your energy bill
Lowest energy price

Do you want comfort and maximum savings?

Then the answer is clear. Do you want to get even more out of your installation? Then the Flextarief from LIFEPOWR is the smartest step forward. It has everything a dynamic tariff has and more.

Read all about it here.



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