Home Energy Management System – Benefits and Functions Explained
What is an energy management system? An energy management system monitors and controls a home's energy consumption. The system collects data on: • ...
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HEMS stands for Home Energy Management System. It is an intelligent
control system for household energy consumption.
A HEMS connects various energy sources and consumers and ensures that
electricity is used as efficiently as possible.
Typical components of a modern energy system are:
• Photovoltaic system
• Battery storage
• Heat pump
• Wallbox for electric cars
• Smart home appliances
An energy management system continuously analyzes electricity consumption and
automatically decides when which devices should operate.
The energy transition is significantly changing the electricity market. More and more
electricity is being generated from renewable energy sources, especially from
photovoltaics and wind power. However, these energy sources are weather-dependent
and do not always generate the same amount of electricity. This leads to greater
fluctuations in electricity supply.
At the same time, electricity consumption is increasing due to new technologies such as:
• Electric cars
• Heat pumps
• Battery storage
An energy management system helps to use this energy efficiently and reduce costs.
A modern HEMS can connect and control numerous devices in the household.
These include, for example:
• Photovoltaic inverters
• Battery storage
• Heat pumps
• Wallboxes
• Electric heating systems
Intelligent control allows energy flows in the household to be optimized.
An energy management system like HEMS PRO connects all important energy components in the household.
The system continuously analyzes:
• Electricity consumption
• Energy production of the PV system
• Electricity prices
Devices are then automatically controlled to utilize as much inexpensive or self-generated
electricity as possible.