How much energy can wind and solar power systems produce? The number of kilowatts of wind and solar power means the amount of energy that can be generated by wind and solar power generation systems. The installed capacity of wind and solar systems is typically calculated in kilowatts, a unit of power that represents the amount of energy produced per second. The installed capacity of wind and solar systems is usually expressed in kilowatts, which represents the maximum power of the equipment. Actual electricity generation is affected by many factors, including wind speed, solar radiation, weather conditions and other factors.
Wind power generation and electricity generation photovoltaic energy are called “residual energy”. For what ?
The disadvantages of these two energy production systems are as follows:
1 Relatively low energy density: The disadvantage of wind and solar power generation is. that their energy density is relatively low, requiring a large area of land to obtain sufficient energy. Wind and solar energy production requires more land resources.
2. Limited by natural conditions: Disadvantages of wind and solar power generation include that wind and solar power generation is affected by factors such as weather, season, geographic location, etc., and the continuity. and stable power supply cannot be guaranteed.
3. Energy storage technology is not yet mature: The disadvantages of wind and solar power generation include that energy storage technology is not yet mature and it is difficult to solve the problem of electricity productionity unstable before. the breakthrough of energy storage technology, wind power and solar power generation proportion in the grid is limited.
Wind power and photovoltaics are new energy sources that China is working to develop. The electricity network must fully absorb them and prioritize their use. Hydroelectricity also requires priority use of the electricity network during periods of flooding. This is a comprehensive consideration of a series of factors such as environmental protection and the reduction of carbon emissions. The electricity network can therefore do nothing! Why is it called “junk electricity”? There are mainly two aspects.
First, photovoltaic and wind energy have low installed capacity and are dispersed, making it difficult to meet the peak load regulation needs of the power grid ! To put it simply, when the weather is sunny and the wind is blowing, the insufficient thermal power will be supplemented. When short-term electricity demand increases rapidly, photovoltaic and wind power cannot meet it. On cloudy days and when there is no wind, the power plant is dead. In the event of a power outage, thermal energy is used! And the price of new electricity on the network is relatively high! This means that when the sun rises, the heat load decreases and when the sun sets, the heat load increases. For the power grid, constant adjustments are required, which is not conducive to the safety and economical operation of the power grid. Secondly, wind and photovoltaic power are not stable enough, resulting in harmonics being transmitted to the power grid system, which will increase power losses and affect efficiency.efficiency of the motor, which will affect high precision manufacturing! These two reasons should be the reason why photovoltaic power and wind power are called "waste energy".
Both are new energy sources, which are currently being promoted and vigorously developed by the state, and there are huge state subsidies. , the grid settlement price for thermal power is about 0.3 yuan per kilowatt hour, and the price of wind and photovoltaic power generation ranges from 0.3 to 0.8 yuan.
Both types of electricity generation had a fatal flaw at the time, namely their intermittency. Solar power produced electricity during the day and could not produce electricity at night. Wind power could produce electricity when it was windy. but it would not be able to produce electricity in the absence of wind. These two types of productionn electricity are actually not subject toThe power grid welcomes it, but due to state support for new energy requirements, energy conservation and emissions reduction, the company of the electricity network must accept it unconditionally.
There are more and more of these two types of electricity production, which lead to instability in the electricity network. At present, we mainly rely on thermal energy peak shaving, pumped energy storage, wind energy heating and wind energy heating. building energy storage power plants to solve intermittent problems. At the same time, wind and solar energy forecasts are becoming more accurate, which also reduces pressure on electricity grid regulation.