What`s the carbon dioxide emission and carbon neutrality

In September 2020, China announced a major strategic decision at the 75th UN General Assembly: "China's carbon dioxide emissions strive to achieve carbon peaking before 2030 and strive to achieve carbon neutrality before 2060." This means that as the world's largest developing country, China will complete the world's largest carbon emission decline and realize the transition from carbon peaking to carbon neutrality in the shortest time.

What are the specific meanings of "carbon peaking and carbon neutralization", which have been frequently mentioned recently? "Carbon peaking" means that the total amount of carbon dioxide emissions reaches the historical peak at a certain time point, which is not a specific time point but a plateau period. During the period, the total amount of carbon emissions will still fluctuate, but after the overall trend is flat, the total amount of carbon emissions will gradually fall steadily. "Carbon neutralization" means that the total amount of carbon dioxide or greenhouse gas emissions directly or indirectly produced by national enterprises, product activities or individuals in a certain period of time is offset by various forms to achieve relative "zero emissions" and achieve positive and negative neutralization.

So why should we vigorously develop "carbon peaking and carbon neutralization"? Over the past several hundred years, over-exploitation of the natural environment, exploitation of fossil fuels, emission of tens of thousands of tons of carbon dioxide into the atmosphere speed up the pace of the global warming and climate change, which have caused unprecedented impact on the global ecological balance. Based on this background, the concept of "carbon peaking and carbon neutralization" was put forward for the first time in China. The proposal and implementation of the "double carbon" goal reflects China's active participation in the practice of development concept and development model as a responsible big country and its unremitting efforts to lead the global green and low-carbon development.

Developing "double carbon" can promote the transformation and upgrading of national economy and energy structure, promote the construction of ecological civilization, and at the same time, it is also an unavoidable only way for human beings to cope with climate change, improve their living environment and move towards sustainable development. If you want to take the road of double carbon, you can't do without four words-"increasing revenue and reducing expenditure".

As its name implies, "throttling" is to save energy and reduce emissions, improve energy efficiency and reduce carbon dioxide emissions. However, if a country wants to develop, it cannot achieve the goal of "double carbon" by "throttling" alone. Compared with "throttling" and "open source", it can fundamentally solve the problem."Open source" means developing clean and renewable new energy and gradually replacing traditional fossil fuels. Solar energy is almost the perfect answer among the clean energy options. It is an inexhaustible renewable clean energy. Solar photovoltaic power generation system can directly convert solar energy into electric energy, which is low-carbon and environmentally friendly, and it is also economical and practical.

In the previous article, we mentioned that solar photovoltaic power generation system can be subdivided into grid-connected photovoltaic power generation system and off-grid photovoltaic power generation system. Grid-connected photovoltaic power generation system is generally composed of solar panel,inverter, AC distribution cabinet, which refers to the photovoltaic power generation system that converts solar energy into electric energy without storage battery and directly transmits electric energy to public power grid through grid-connected inverter.