In development · being validated in a real home in FinlandIn development · validating in a Finnish home
One home.One energy system.
Kaelion is built to bring your heating, hot water, battery, solar and EV charging together — and choose the right moment for each.
Now Evening peak. The battery carries the home.
Concept scene — illustrative, not live data. The Kaelion unit is a design concept.Concept scene · not live data · concept unit
One system
Heat pump, battery, solar panels, car. Each is smart on its own. Kaelion makes them work as one.
Devices that each optimise for themselves compete for the same cheap hours and the same main fuse. One plan for the whole home avoids that.
The Kaelion mark has two arcs. The upper one is what Kaelion reads. The lower one is what it can control.
Reads
- Electricity priceDay-ahead spot prices for the hours ahead.
- Weather forecastTemperature and sunshine expected in the coming hours.
- SolarWhat the panels produce now, and what they are expected to produce.
- GridPower drawn from the grid and fed back to it.
Controls
- BatteryCharged and discharged as part of one plan for the whole home.
- HeatingHeat-pump heating, timed around price and weather.
- Hot waterHot water heated when energy is cheap or plentiful.
- EV chargingThe car charged in the hours that suit the whole home.
How Kaelion thinks
It doesn’t just watch your energy. It closes the loop.
An illustrative day
ConsumptionSolarPriceBaselineMeasured
Kaelion
A small control unit that lives in your home.
Kaelion is a device, not an app in someone else’s cloud. It sits next to your equipment and makes its decisions there.
- Control happens at home
- Planning and control run on the unit in your home, close to your devices.
- No constant cloud connection needed
- Prices and forecasts come from the internet when it is available. Core control does not depend on it.
- Safe by default
- Control is off until you switch it on, device by device. Every action is checked against your limits first.
Measured evidence
Measured in a real home. Reported as measured.
A small, honest number is worth more than a big promise. Only what Kaelion’s own control can be shown to have caused is counted.
Live measurement data is not available right now. Rather than show outdated figures, no values are displayed.
Kaelion-attributed saving · battery optimisation
€2.94- Measurement period
- 08/09/2026 – 07/10/2026
Attribution boundary
Counted: the difference Kaelion’s battery control made against the same home running its battery as a conventional self-consumption battery.
Measured · not a Kaelion saving
€15.18Value of the home’s own solar production in the same period. Reported separately, never added to the saving.
Snapshot: 08/09/2026 – 07/10/2026 · Updated 07/10/2026. Live data refreshes automatically.
Where Kaelion is today
What is proven today. What is not yet.
Kaelion is in development. Each part is counted only after it has been measured in a real home.
- Battery optimisationActive in the test home
Controlled by Kaelion and measured against a baseline.
- HeatingBaseline being measured
No saving is claimed until the baseline is complete.
- Hot waterBaseline being measured
No saving is claimed until the baseline is complete.
- EV chargingBaseline being measured
No saving is claimed until the baseline is complete.
The test home
Detached house in Finland · about 10,000 kWh a year · air-to-water heat pump with water radiators · 15 kWh battery · 5.5 kWp solar · spot-price electricity
Pilot
Measure the next home with us.
For households
Register your home for the pilot. Tell us what you have: heating, battery, solar, EV and electricity contract.
Apply for the pilotFor partners
Device manufacturers, installers and energy companies: talk to us about integration and pilot sites.
Contact us