Energy management system (EMS)

Your own power,
fully used.

FlexiEnergy is an energy management system for businesses: a small box that controls your solar PV, battery and loads so you use as much of your own electricity as possible and buy from the grid at the cheapest times. It works with the inverter and battery you already have, and keeps running without internet.

Solar PV generation Grid 15-minute prices Battery charge / discharge Loads machines · HP · EV FlexiEnergy Box
Concept

One brain for all the energy in your business

Every 15 minutes the box compares solar generation, battery charge, site consumption and the market price of electricity. It then decides whether to store, use or sell energy, and switches loads on or off accordingly.

Plans ahead

It uses the weather forecast and next-day prices, so it charges the battery when it pays off.

Uses what you already have

It connects to your existing inverter and battery via network or Modbus. Nothing needs replacing.

Works offline too

Control runs directly in the box. If the internet goes down, your site keeps running on the last plan.

Energy management

What is an energy management system?

An energy management system (EMS) is a control system that monitors energy generation, consumption and storage in your business. It automatically decides when to use electricity, store it in a battery or sell it to the grid. The goal is a lower electricity bill and better use of your own solar PV.

Without an EMS, solar PV, battery and loads each work on their own. Surplus power flows to the grid at low or negative prices, the battery runs empty before the expensive hour arrives, and large loads run exactly when electricity is most expensive.

FlexiEnergy is an energy management system designed for businesses with solar PV. It works with 15-minute spot electricity prices, the weather forecast, and the inverters and batteries you already have.

Who an EMS is for

  • businesses with solar PV on the roof or on site,
  • sites with compressors, refrigeration or heat pumps,
  • businesses on a spot-price electricity contract,
  • sites that charge electric vehicles or company cars,
  • businesses considering battery storage.
Benefits

What you get

Higher self-consumption

Compressors, refrigeration, heat pumps and EV chargers run when power is being generated or is cheap.

Protection from negative prices

On a spot-price contract the box limits grid export and charges the battery when selling doesn’t pay.

Smarter battery

Charging and discharging based on the weather forecast and next-day prices.

Savings overview

The app shows how much you saved, day by day.

Ready for the future

The box is ready for dynamic tariffs and flexibility rewards.

For installers

Margin on every box sold, paid work on installation and setup, and our support on every project.

How it works

Up and running in about 15 minutes

No programming. We install the box, or you connect it yourself and we take care of the setup remotely.

  1. The box arrives pre-installed.
  2. Our team installs it, or you connect it to your network and inverter yourself following the guide.
  3. We configure it remotely for your inverter, battery and loads.
  4. You receive documentation for wiring and setup, and we train you on how to use it.
  5. If you wish, we can monitor and look after your system remotely.
Pricing

Pay once, no mandatory subscription

One-off

FlexiEnergy Box

You buy the box once and it’s yours. It runs your site with no further fees.

One-off

Installation and setup

Installation by our team (or do it yourself), remote configuration, documentation and training.

Optional · monthly

Monitoring

Remote monitoring and fixing issues before you notice them. Only if you want it.

Contact

Get in touch

Do you run solar PV, install it, or want to become a partner? Write to us and we’ll reply within two working days.

Company
Toande-systems s.r.o.
Dunajská 6, 931 01 Šamorín, Slovakia
Company ID (IČO): 48 202 339