Impact of photovoltaic installations on the electric grid. Photovoltaic installations are an increasingly popular source of renewable energy. In Poland, their installed capacity is growing steadily, and in 2023 it exceeded 7 GW. The impact of photovoltaics on the electric grid is both positive and negative.
Positive impact of photovoltaics
Positive impacts of photovoltaics on the electric grid include:
- Reducing the demand for electricity from conventional sources. Photovoltaics can meet a portion of electricity demand, leading to reduced greenhouse gas emissions and improved air quality.
- Increasing the stability of electric grid operation. Photovoltaics can help balance power on the grid, which can reduce the risk of power outages.
- Improving the safety of electrical grid operation. Photovoltaics can reduce the risk of fires and other accidents on the electric grid.
The negative impact of photovoltaics
The negative impacts of photovoltaics on the electric grid include:
- Increase in network voltage. Photovoltaics can generate excess electricity, which can cause an increase in grid voltage.
- Increasing current asymmetry in the network. Photovoltaics can generate current with an uneven phase distribution, which can cause current asymmetry in the grid.
- Shutdown of photovoltaic installations due to tripping of protection. If there is too much voltage increase or current asymmetry in the grid, the protection can shut down the photovoltaic system.
What measures can be taken to minimize the negative impact of photovoltaics on the electric grid?
To minimize the negative impact of photovoltaics on the electric grid, grid operators can take the following measures:
- Upgrading the electrical grid. Grid operators can upgrade the electric grid so that it can better handle the large amounts of electricity entering from PV installations.
- Cooperation with prosumers. Grid operators can work with prosumers to reduce the negative impact of their installations on the grid.
- Development of energy storage. The development of energy storage can help store excess electricity produced by photovoltaic installations, which can reduce voltage and power asymmetry problems on the grid.
Summary Impact of photovoltaic installations on the electric grid
Photovoltaic installations have a positive impact on the environment and energy security. However, in order to maximize this impact, it is necessary to take measures to minimize the negative impact of photovoltaics on the electric grid.
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