Solar, battery and peak for a business. Watched and steered.
A business with solar panels, a battery and cold stores soon has three brands of inverter, two meters and a controller from the installer. Lenou Pro reads them all, sees what goes wrong and steers the battery so the quarter-hour peak stays low and the expensive hours are covered.
Lenou Home or Lenou Pro?
Lenou Home
For a home. One app for every brand in the house: lights, shutters, heating, solar, battery and charger. What can stay local, stays local.
To Lenou Home →
Lenou Pro
For a business. Monitoring of every inverter and string, smart battery control on the quarter-hour peak and the dynamic price, alerts and a monthly report. With a dashboard for the owner and the installer.
You are here
A day on the roof, string by string.
An inverter only reports a fault when it stops. A string that no longer gives current does not show on its screen: the rest of the panels simply keep producing. Lenou Pro compares every string with the strings that face the same way. What dips together is a cloud. What dips alone is shade or a fault. What gives nothing all day needs to be checked.
21 strings fine.
A night with cold stores, and a battery that flattens the peaks.
In Flanders a business pays a large part of its grid costs on the highest quarter hour of the month. One defrost cycle of the cold stores at three in the morning sets that peak for the whole month. Lenou Pro sees the quarter hour coming and lets the battery supply exactly the part above the limit, no more.
- Highest quarter hour without Lenou
- 0 kW
- Highest quarter hour from the grid
- 0 kW
- Battery supplied
- 0 kWh
Everything on one screen, and a battery that thinks ahead.
Every meter and inverter
Inverters of different brands, the Solar-Log, the grid meter, the battery and the installer's controller. Lenou reads them directly on the site's own network, every half minute.
Quarter-hour peak
The battery keeps the quarter-hour average below the limit you choose. It takes into account what has already been drawn this quarter hour, so a short defrost peak is absorbed without wasting the battery.
Dynamic price
With a dynamic contract the battery stores the sun and the cheap hours and covers the expensive ones. The peak always comes first: energy needed at night stays in reserve.
Monthly limit advice
Every night Lenou simulates the next month: the consumption of the last weeks, ten years of weather data and the grid tariff. The advice is the lowest limit the battery can surely hold. You approve it, not the software.
A solar forecast that learns
Four weather models per quarter hour, per roof. Every evening Lenou compares the forecast with what was really produced, and corrects itself.
Alerts anyone understands
"Three strings on roof C give no current" instead of an error code. With what may be wrong, for the owner and for the installer.
A foodservice wholesaler with cold and freezer stores.
The first Lenou Pro has been running since October 2026 at a wholesaler in West Flanders.
- Installation
- About 550 kWp of solar on three roofs with three brands of inverter, a battery of about 970 kWh, a medium-voltage connection
- Before
- The monthly peak ran up to 138 kW, well above the contracted capacity of 100 kW. On top of the peak that cost an excess charge, which keeps running for twelve months.
- Now
- The battery keeps the night-time defrost peaks below a limit of 80 kW. Lenou Pro has been steering actively since 31 October 2026.
- Found
- Three strings that never gave current, a second Solar-Log with the meter of the second transformer, and a daily counter that was read wrongly after a reconfiguration
The saving is measured over full months. A first estimate lies between €6,000 and €9,000 a year, depending on the contracted capacity and the repaired strings.
Look first, steer later.
Inventory on site
Which inverters, meters and controllers are there, and how they are connected. Everything goes into a reference that documents the installation itself.
A box in the cabinet
An industrial controller on a DIN rail, on the business's own network. It only reads. Nothing in the existing installation is changed.
Shadow mode
Lenou calculates along and logs what it would do, without steering. That shows on real data what it yields, before anything changes.
Active, within hard limits
Only then does Lenou steer the battery. The contracted capacity is never exceeded, the battery never goes below its minimum. If the box drops out, the battery takes back its own control after a few seconds.
Without internet too
The control runs on the box itself. If the internet line drops, it keeps steering and keeps the measurements until the connection is back.
An introduction?
Lenou Pro is for businesses with solar panels and a battery, or with plans for a battery. Send an email to info@lenou.be with what is installed today. Then we look together at what there is to gain.
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