Home Energy Management System – HEMS

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Home Energy Management System

Every person investing in Renewable Energy Sources wants to achieve the best possible results from their investment. Ten years ago, very few people had heard of or invested in photovoltaic systems. Today, one in five homes in Poland has solar panels, and in Germany it is already one in three homes. Solar energy is no longer something new. However, the world keeps moving forward, and the preferential conditions for connecting homes to the power grid are no longer available.

In 2015, prosumer agreements allowed homeowners to send 1 kWh of energy to the grid and receive the same 1 kWh back in winter. Today, we operate under a net-billing system. That is why we must move toward a Home Energy Management System (HEMS), which ensures that as much energy produced by renewable systems as possible stays within the home. We are talking about intelligent devices that, according to our settings, manage the energy we produce, consume, and feed into the public grid.

The system allows you to:

directing energy from photovoltaic panels not to the public grid but to the home energy storage, so it can be used (“consumed”) at night
charging the home energy storage with cheaper electricity from the night tariff and using it later during the more expensive daytime tariff
powering the home even during a grid outage, thanks to the installed energy storage and, during the day, photovoltaic panels. When the household’s energy demand is low, the storage system can still be charged even if the public grid power remains unavailable
setting priority schedules for different energy sources, deciding which source should be used at specific times: photovoltaic panels, wind turbines, the public grid, energy storage, or a power generator

All of the above functions, along with many other energy management capabilities are defined by the user (with our help), based on what is more beneficial. Settings are handled by the Hybrid Inverters – devices of the future which will become the standard in every modern home.

Our offer includes Hybrid Inverters designed not only to support photovoltaic panels but also residential wind power systems. These inverters can work with virtually any type of energy storage, including lithium, sodium, traction and lead-acid batteries. They are highly versatile devices that allow a home to be powered from multiple independent energy sources, and ultimately from the electricity supplied by the grid operator with whom we have an energy supply agreement.

However, it is important to remember that every home is different. Each household has different demands for electricity, heating, and different patterns of energy consumption. Some homes include electric vehicles that need charging, while others operate heat pumps. For this reason, every home must first be analyzed in terms of energy demand as well as the hours during which energy is consumed.

All these factors allow us to optimize energy usage and management, which ultimately enables the design of the most appropriate Home Energy Management System.

Home Energy Management System – HEMS

Driven by the wind, powered by the sun