One of the disadvantages of solar PV systems with backwatts protection is that they can only produce energy when it is needed immediately. If there is no immediate use, the system will regulate itself back, resulting in production fluctuations and lower efficiency. As a consequence, the self-consumption rate remains low.

The control solution we offer is able to direct the solar energy generated to the battery, taking into account local conditions. This allows the system to operate continuously and in a balanced way, while significantly increasing the self-consumption rate and making much more efficient use of the renewable energy source.

In some industrial systems, it is a fundamental requirement that neither the energy from solar generation nor from battery storage is fed back into the public grid. The EMS control unit continuously monitors the operation of the entire system and dynamically controls the equipment based on the data from the energy meters. This means that the energy generated is always used for local consumption, while the possibility of feeding energy back to the grid is completely eliminated.

This feature offers a particular advantage where the available network capacity is insufficient or it would be uneconomic to pay higher charges due to short-time power peaks. By including energy storage, the system is able to balance the load, ensuring continuous and stable operation while avoiding costly network expansion. A good example of this is the support of electric vehicle charging stations: the storage dynamically boosts charging when grid power alone is insufficient, so that charging remains reliable and continuous without the need to tie up unnecessary extra capacity.

For spot-priced energy contracts, it is of paramount importance to manage intraday price fluctuations consciously. Every day, our energy management system automatically retrieves the next day's exchange electricity prices, identifies the trough and peak periods and then generates a schedule based on these. Accordingly, during the cheaper hours, the system charges the battery from the grid, so that during the more expensive peak periods, internal consumption can be covered by energy already stored. This will allow significant cost savings without having to change consumption patterns.

Our system can receive control signals from aggregators via the most common industrial communication protocols and execute them locally in real time. It efficiently supports the control not only of energy storage but also of gas engines and solar farms. In addition to external commands, the built-in local control continuously monitors critical requirements such as back-feed protection or grid capacity limit compliance. This ensures that the external and local control is always coordinated and safe.

Equipment connected to the control cabinet can be flexibly controlled via digital inputs, outputs and relays. Based on individual logics, automated control of different consumers or process elements can be implemented. For example, a hot water production system or a cooling compressor can be automatically switched on in case of solar surplus. Another practical example is when it is necessary to trip or automatically reset a motor circuit breaker or to read back its current status.