There may be too much renewable energy. The future of Polish energy

There may be too much renewable energy.  The future of Polish energy

There may be too much renewable energy. The future of Polish energy

The rapid development of renewable energy sources is pleasing. The electricity produced in this way is cheaper, and at the same time reduces the impact of the energy industry on the environment. The problem is that we may soon have problems using clean electricity.

Renewable energy sources it is the future from which there is no turning back. The whole world is betting on RES, moving away from fossil fuels, such as coal or natural gas, as far as possible. Unfortunately, green energy has its downsides. The main one is dependence on weather conditions. This, in turn, makes it necessary to rely on energy from other sources, such as conventional power plants or nuclear power plants, to ensure the continuity of electricity supply. However, this is not the only possibility.

Another possibility to increase the stability of energy based on RES is energy storage. They allow the use of electricity produced at a time when the weather conditions were favorable, at a later date. Their existence in Poland may play a key role in a few years.

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Development of RES in Poland until 2032

In an interview with the editors of the website, Włodzimierz Mucha, vice-president of the board of Polskie Sieci Elektroenergetyczne, said that by 2032, it is planned to connect RES with a capacity of approx. 30 GW in Polandof which nearly 11 GW is offshore wind energy and at least 20 GW onshore wind energy and photovoltaics.

An increase of this magnitude would mean that in Poland we would have over 50 GW of RES at that time, with the expected peak demand of 32-34 GW at that time.

– Due to the occurrence of periods of simultaneous operation of RES sources of various technologies with quite significant power, we face structural – or at least periodic – problems with receiving surplus electricity from RES – says Włodzimierz Mucha.

– Then there will be amounts of energy that the system and consumers will not be able to absorb. Therefore, it is not the network that is a barrier to the development of RES. It will be the demand curve for power and energy in the country, limiting the possibilities of using the full potential of green energy – he adds.

Although the development of renewable energy sources in Poland may continue quite rapidly, there are still no plans to manage the surplus of energy generated in this way. As the vice-president of the management board of PSE notes, this does not mean that there is no possibility to do so, but if appropriate action is not taken, “RES will begin to cannibalize” because there will be no way to use the generated energy.

Surplus energy from RES. How to manage them?

The way to use green energy will probably not be export. As Włodzimierz Mucha notes, the sale of surplus energy is not easy, because the climate is similar throughout Europe, which means that surplus energy from RES often involve several countries at the same time.

Another option is to increase energy consumption when excess energy is generated. According to the vice-president of PSE, various tools can be used here, with price incentives at the forefront (including negative prices). However, this solution should be considered as an additional action, not a solution to the problem.

– We think so the best solution to the emerging problem of surplus energy from RES would be the construction of seasonal energy storage facilities based on green energy, for example hydrogen. Seasonal energy storages would be loaded during periods of RES oversupply and would greatly increase the share of energy from RES in final energy consumption, comments Włodzimierz Mucha.

The Vice-President of PSE notes that many companies plan to invest in energy storage, thanks to which it will be possible to stabilize the system in which renewable energy sources will play an increasingly important role. However, if we do not focus on storing the generated electricity, production will have to be reduced RES, and at the same time focus on peak sources, probably gas, which will cover the demand for power during a climatic drought, i.e. when there is no generation from wind or sunlight.

Karol Kołtowski, journalist of Gadgetomania

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