How profitable are solar power plants with battery pack? – Climate change

We cannot influence this when variable sources will produce less, and when more energy, but We can « iron » this unevenness with the battery pack. The second component that makes the battery systems attractive to their increasing price. Namely, The price of the battery systems has been from 2015. until 2024. decreased by about 75%writes in an author’s text For Klima101.rs Dr. Miodrag Vuković, an expert on renewable source systems.

Field experiences: Solar + batteries in the economy are paid in 4 to 6 years

Several major systems with solar panels and batteries on economic facilities and households have already been realized in Serbia, where primary reason for electricity, but a continuous power supply in voltage fluctuations and power failures on the distribution part. Today’s investment in battery warehouses also have an economic calculation.

Namely, according to today’s prices of mini solar power plants with battery systems, investment in a solar power plant with batteries in Serbia, Companies payments between 4 and 6 years. Cost-effectiveness depends on the number of cycles that the batteries do during the year.

However, even better cost-effectiveness we have analyzed for one business entity in a solar power plant than 50kW with batteries, with a loan for 5 years, 600 €, where the investment is returned after two years, while the average monthly savings on electricity account greater by 60% of the amount of credit rate.

Such reviews indicate a very attractive return of their own investment and standing businesses of entities in the economy using solar power plants with a battery warehouse.

But battery systems are not only useful in the economy, but can be a great solution and for significantly less solar capacities – such as home roofs.

Battery systems offer different advantages – stability, savings, but also balancing of the power system

In Serbia, The biggest interest is for battery systems in householdswhere there is already a significant number of realized systems. Then the following are industrial and commercial facilities, while the demand for battery systems on the transmission network is just beginning to express themselves through inquiries and requirements – in the case of large solar power plants, the realization of these systems has not begun for now.

However, it will start very quickly and Application of battery warehouses onlineSince Serbia’s electricity (EMS), according to adopted Law on the Use of Renewable Energy Sources (Article 68b)can delay the connection of higher-capacity power plants in case there is no appropriate electricity warehouse.

Battery systems offer different advantages, depending on where they are applied, and their size.

When we speak About commercial and industrial facilitiesThe batteries are good to reduce peak consumption, increasing the level of energy independence in combination with a solar power plant, as well as to ensure continuous supply for critical consumers, in case of power failure.

Additional benefits that commercial and industrial systems can have an auxiliary services to stabilize the operation of the electricity distribution network, where the battery is used as a network balancing service, frequency and voltage regulation, on which additional salary can be achieved. It is a new possibility that came from industry active customers in the electricity market.

On the other hand, Home Battery Systems They only provide better use of their own solar capacities, as well as continuous power in case of power failure.

Finally, battery warehouses are used for greater flexibility of the system for balancing systems, monitoring the frequency of network operation, or by tracking differences in electricity price online during the day. The primary reason for the construction of large network battery storage is the stabilization of the network work over the day, with a large share of renewable sources.

Research shows that customers-producers can help work the energy system

There is part of the public in Serbia, which considers the premiums (customers-producers) does not contribute to the business of the electricity system.

However, several relevant studies at the Faculty of Electrical Engineering in Belgrade have been done so far, which have shown What is the optimally dimensioned number of connections Mini solar power plants of households in one medium voltage statement, as well as lower losses on the electricity distribution system where there are premiums.

In the urban parts of the country, by the number of possible household connections, our current capacities are far below technical limitations.

According to the current data of Serbia’s electricity distribution, Current total capacity of Prozjumer households are about 28 MWwith industry, a total of about 100mW, which is still a very small number in relation to our energy needs, but also aims to reach 500mw prozjumer until 2030. year, which is part of Official integrated National Energy and Climate Plan of the Republic of Serbia (INEKP).

Also, a large number of industrial prehjumers, which do not work during two shifts during the week and Saturdays, suresius are submitted just when the demand for electricity is the largest – in the afternoon.

Since the development of Prosjumer in Serbia is only in its infancy, certain « step errors » can be noticed: the latest data of the EPS say that households are oversized in 20% of cases, which has led to these households after section 31.03. handed between 1000kWh and 5000kWh without compensation. It is the energy that they practically donated to the EPS.

Instead of too large the number of solar panels on the roof, It is better to have one batterywhich will store daily surpluses and use them, for example, in the evening. It is allowed and provided for and New Energy Law.

Batteries become an important element of systems based on variable sources such as sun and wind

At the end of April, the displacement of the electricity system on the Iberian peninsula, when more than 60 million inhabitants were about 10 hours without electricity, it showed as one of the lessons learned Necessity of battery systems as a frequency stabilization ingredient on the transmission and distribution of electricity in the conditions of the great participation of renewable sources.

A new wave in energy transition begins over the participation of variable sources, where Portugal, Spain, Germany, the Netherlands, Denmark, Greece, Battery warehouses become a necessary component for reconciliation with consumption at all times.

This achieves the stabilization of such systems during the occurrence of shorter disorders. However, in addition to stabilizing the work of the system, the motive is also earned.

Battery prices are expected to declinefor the reasons extremely high demand and volume of production in recent years, both battery for electric vehicles and energy. In battery warehouses, there are greater competition between numerous manufacturers, but also competition between battery technologies.

In the development of battery systems, attention is paid to the safety when using these systems, energy converting, temperature range of work, battery life, energy density, recycling capabilities, but also – prices.