Smoothing of intermittent renewable energies

The growth of renewable energies poses a new problem to the electricity network: the management of intermittence. Conventional means of production are not able to adapt to the rapid changes in the power supplied by these energies, which are of the order of the minute. The ENERGIESTRO flywheel will allow smooth production across time, and thus to increase the market of intermittent renewable energies. ENERGIESTRO is particularly targeting the small networks market, such as islands and rural electrification.

 

Solar energy storage

In most countries there is a peak of consumption at the end of the day, while the solar production peak is midday. The ENERGIESTRO flywheel will allow storage of solar production of the day for several hours and release it when the sun is down. This is the “timeshift” of energy. The ENERGIESTRO flywheel is the ideal storage for large solar power plants in desert areas, in combination with photovoltaic panels.

 

Power to remote sites

Power to remote sites is increasingly supplied by hybrid systems combining energy storage and a generator. In this mode of operation called « charge/discharge », the generator works intermittently at full power. Compared to a conventional system where the generator operates continuously at low power, a hybrid system reduces fuel consumption, wear on the generator and the frequency of maintenance. One can add renewable energy (sun, wind, water…) thus reducing fuel consumption. It is possible to reach 100% renewable power using renewable fuel: « charge/discharge » operation allows in particular the use of pure plant oil, 1st generation offering an optimum ecological balance. ENERGIESTRO specifically targets the telecommunication antenna market not connected to the power network.

 

Solar desalination

With the ENERGIESTRO flywheel it becomes possible to power a reverse osmosis desalination plant requiring constant power from photovoltaic panels producing intermittent power.

 

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