Preliminary problems of profitability of electricity production from small hydroelectric plants

Introduction Preliminary Problems of Profitability of Electricity Production of Small Hydropower Plants 1. Guaranteed Production of Hydropower Plants: Hydropower plants do not operate at full load throughout the year. For example, electricity generation capacity will

Preliminary problems of profitability of electricity production from small hydroelectric plants

1. Guaranteed production from hydroelectric plants: Hydroelectric plants do not operate at full capacity all year round. For example, electricity production will certainly decrease during the dry season. This requires detailed analysis of specific problems. 2. Water energy utilization rate: utilization height of the hydropower plant/overall river section of the hydropower plant 3. Turbine and generator efficiency: total efficiency = turbine efficiency * efficiency of the generator 4. Price of electricity from the network: there is no need to explain this, you just need to know how much it sells for once? In short, estimating this profit requires data on the volume of water in the river over the years, the specific size of the hydroelectric plant, the model of the generator, etc.

It is basically impossible to store and the storage cost is too high

1. The electricity produced by power plants practically cannot be stored. However, pumped storage power plants currently exist. , which use electricity when the power grid is at a low point. Water is pumped to high places and used to generate electricity when needed.

2. A power grid is made up of several power plants providing electricity at the same time. The power of the entire network can be adjusted by adjusting the power generation capacity of the power plant. The power station has two generators, which can use their full power. The electricity produced is 100, and the electricity consumption of the electricity consumer is 50. Then the electricity dispatch center will order the power station to operate only one generator, or both to operate two generators. but not everyone proproduces electricity only at half of its capacity (just a theory) In this way, the energy consumption is also half, and if the electricity user wastes, it will increase the consumption quota of electricity to 100, and the power station adjust it to full load accordingly, and more fuel will be used. The above is just a distance, the actual power grid adjustment is much more complicated.

3. Therefore, it is right to save electricity. Energy should not be wasted. Although our personal savings are very small, if many people save, the load on the electricity grid will actually be greatly reduced. so that the electricity dispatch center Reasonable adjustments will make the electricity generation and use well matched. Less coal, oil, etc. will be burned, and less SO2, CO, O2, etc. will be burned. will be issued, and there will be less. wastewater. . . .

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