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How To Calculate The Emission Reduction Of PV Power Plants
- Apr 25, 2018 -

How to calculate the emission reduction of PV power plants

As a clean energy source, solar energy does not in principle consume fossil fuels. Therefore, the use of clean energy means reducing the burning of fossil fuels (that is, saving the use of standard coal) and reducing the emission of carbon dioxide and other gas dusts. Fundamentally managing air pollution is of great significance.

China is a country dominated by thermal power generation. Thermal power plants use thermal energy derived from the combustion of fuel (coal, petroleum and its products, natural gas, etc.) to generate electricity. Energy-saving, emission reduction and the use of renewable energy are two keys to reducing CO2 emissions.

So, how to calculate the amount of carbon dioxide emission reduction?

Taking a power plant as an example, how much "carbon dioxide" is reduced by saving 1 kWh or 1 kg of coal?

According to expert statistics, for every 1 degree (kWh) of electricity saved, a corresponding saving of 0.328 kg of standard coal is achieved, while pollution emissions of 0.272 kg of carbon dust, 0.997 kg of carbon dioxide, 0.03 kg of sulfur dioxide, and 0.015 kg of nitrogen oxides are reduced.

The same is true for every degree of electricity generated by the use of a photovoltaic power plant.

Take a 1MWp photovoltaic power plant as an example.

Assume that the annual power generation is 1200000 degrees. Then:

The standard amount of coal saved is: 1200000 KWh×0.328 KG/KWh=393600 KG=393.6 tons.

Reducing the amount of carbon dust exhaust: 1200000 KWh×0.272 KG/KWh=326400 KG=326.4 tons.

Reduction of CO2 emission reduction: 1200000 KWh × 0.997 KG/KWh = 1196400 KG = 1196.4 tons.

Reduction of sulfur dioxide emissions: 1200000 KWh × 0.03KG/KWh = 36000KG = 36 tons.

Reduction of nitrogen oxide emissions: 1200000 KWh×0.015 KG/KWh=18000 KG=18 tons.

It should be noted that due to the difference in the capacity and efficiency of thermal power plants, the amount of standard coal consumed for each degree of electrical power generation is different, and as the thermal power technology improves, the amount of coal used for electrical use has been decreasing, as mentioned above. The data is average in the average sense and is for reference only.