How to avoid paying for your own solar electricity?
More than 450,000 Belgian households are at risk of having to pay to inject their surplus solar electricity into the grid. This paradox of the negative tariff is increasingly worrying photovoltaic panel owners. While you produce green energy, you could soon be charged for what you give to the grid for free.
Fortunately, there is a solution: consume as much of your solar energy as possible at the time it is produced. This is precisely what Soliseco offers, with smart, simple technology that is compatible with all installations.
The trap of negative tariffs
According to an analysis by VRT NWS, Belgium has already experienced 229 hours of zero or negative injection tariffs in 2025, especially during very sunny days. This phenomenon particularly affects:
- Households equipped with a smart meter linked to a dynamic contract, where injection prices vary hour by hour.
- Some variable contracts, even when the consumption contract is presented as "fixed," because the injection tariff often remains variable.
- Les jours ensoleillé, il faut considérer qu’il faut payer en 10 et 18h pour réinjecter sur le réseau.
- A cela s’ajoute, chez certains fournisseurs d’énergie, des frais pour la détention de panneaux solaire
The consumer advocacy organization Testachats is sounding the alarm: consumers are poorly informed, contracts are hard to read, and unpleasant surprises on the bill are multiplying.
The best response: consume your energy rather than inject it.
Testachats clearly recommends consuming as much solar electricity as possible rather than reinjecting it. This is where Soliseco provides a concrete, immediate, and profitable solution.
It is also interesting to check the pricing sheet of the product you subscribed to and to understand what lies behind the indicated amounts.
Soliseco: optimize your hot water, not your injection bill.
Instead of paying to inject your energy into the grid, why not use it to heat your sanitary water for free? This is what Soliseco allows, a solution designed to transform your photovoltaic surplus into useful heat, without modifying your boiler or water heater.
The concrete benefits.
Unlike batteries, Soliseco directly redirects the surplus to your hot water, dynamically adapting to solar production.
Gas boiler, oil, biomass, electric water heater... No need to change your system. Soliseco installs in a few hours, without major work or technical constraints.
Your installation continues to capture energy, even in partial production, and uses it efficiently. More than 95% of the surplus can be recovered.
Soliseco prevents energy losses caused by inverter disconnection by intelligently absorbing production peaks.
With a return on investment between 2 and 5 years, you start saving from the first bills. A cost-effective solution, with no extra costs or additional equipment.
Do you have a smart meter? Here’s why Soliseco is your best ally.
Dynamic electricity contracts require careful management of your consumption. You should consume when prices are low and avoid periods of high demand.
But monitoring prices every hour is not realistic for most households.
With Soliseco, your system manages this automatically, absorbing available energy to produce hot water at the right time, without any action on your part.
In summary: Produce, consume, save.
With negative feed-in tariffs, stop letting your solar energy cost you money.
Soliseco allows you to intelligently consume what you already produce, without changing your habits or your equipment. One solution:
- Cost-effective
- Eco-friendly
- Easy to install
- Compatible with all households
Do you have photovoltaic panels? Stop paying for your own electricity. Adopt Soliseco.