HEMS: The Home Energy Management System with LOXONE

Manufacturer independence – Does the system work with the devices you have or are planning? Or are you tied to a single brand? A manufacturer-independent HEMS like LOXONE integrates inverters, batteries, Wallbox and heat pump from different suppliers at the same time.

Local control – Does the system run locally or does it depend on the cloud? Your house should keep optimizing even if the cloud goes down or there’s an internet problem.

Open protocols – Does the system support common standards such as Modbus, OCPP or EEBUS? This determines which devices can be integrated today and in the future.

Heat pump integration – Can the HEMS really control the heat pump intelligently – optimizing cycling, preloading the buffer tank with foresight, responding to PV surplus? Or can it only switch it on and off?

Connected building intelligence – Can the system think beyond energy? Controlling shading, heating, lighting and security together multiplies the benefit – and is something specialized HEMS solutions can’t do.

Yes, because an app only shows you what’s happening. LOXONE takes action. When the sun shines, the Wallbox charges. When the electricity price drops, the heat pump kicks in. When the battery is full, the car stops charging. All automatic – you don’t have to do a thing.

No, LOXONE also works without a battery and already optimizes the self-consumption of your PV system. The Wallbox, heat pump and household appliances are switched on automatically when the sun is shining.

With a battery, however, you get much more out of it: you can consume up to 70% of your self-generated power yourself instead of feeding it into the grid for a low feed-in tariff. The battery charges during the day and releases the energy in the evening, when you really need it. Find out how a battery can help you cut electricity costs.

LOXONE works with most systems on the market: inverters from Fronius, SMA, Kostal and Huawei, heat pumps via Modbus or network, Wallboxes via OCPP, batteries via Modbus, air conditioners from Daikin, Mitsubishi, LG, Fujitsu and others. You can find the complete, up-to-date compatibility list in the LOXONE Library.

Example: when the sun is shining, the shading lowers automatically – reducing the cooling demand. At the same time, the battery charges. At the same time, the heat pump heats the buffer tank. No specialized HEMS can link these levels together – because it only knows energy, not the whole house.

LOXONE is installed by certified partners – electricians and planners who know the system and set it up correctly. That’s not a drawback but a guarantee of quality: you get a system that is professionally planned and maintained for the long term.

You don’t have to do anything yourself for the setup. After that, everything runs automatically – but you can step in at any time in the LOXONE App: adjust priorities, change settings, view energy flows. As much control as you want, as little effort as possible.

That depends on the starting point. With a complete renovation, high savings of around 80% of energy costs are possible.

You can also save without renovating: according to Boston Consulting Group (2025), a single-family home with a battery, heat pump, electric car and dynamic tariff optimization saves around 20–30% of its electricity costs.

You don’t need a smart meter for many LOXONE functions. PV surplus charging, heat pump control, load management and the visualization of energy flows in the App also work without one – LOXONE measures the relevant values directly via its own energy meters in the house.

A smart meter becomes a requirement as soon as you want to use dynamic electricity tariffs. Tariffs such as Tibber or Awattar bill hourly based on the current wholesale electricity price – for this, the meter has to send consumption data to the energy supplier every 15 minutes, which only a smart meter can do. No smart meter, no dynamic tariff; no dynamic tariff, no spot price optimization by LOXONE.

In short: LOXONE already works without a smart meter today – and is ready to use its full potential as soon as one is installed.

You don’t have to do anything. LOXONE receives the signal automatically and regulates accordingly – while making sure other consumers compensate where possible.

The LOXONE Spot Price Optimizer makes use of exactly that: it automatically loads the current exchange prices and shifts consumers to the cheapest hours.

A balcony solar system adds another level: LOXONE detects your own solar surplus and controls consumers automatically based on it, instead of only reacting to the electricity tariff. This way, you can reach around 30–40% self-consumption even without a large rooftop system.