Eco-friendly power generation + affordable energy storage is the future direction of environmentally friendly power construction

　　From the perspective of the entire environmentally friendly power system, energy storage is an indispensable link in the energy transition process. Energy storage can be used as a provider of electricity and as a consumer of electricity, and it can play a role in all aspects of the power system.

　　The benefits that energy storage brings to the environmental protection power system are reflected in multiple links and cover all aspects. However, under the current environmental protection power system, the energy storage system is usually only defined as a single-function subject, it cannot make adequate compensation for the multiple functions.

　　The instability of environmentally friendly power generation such as wind and solar energy is an important reason for the need to configure energy storage. Therefore, in the long run, the environmentally friendly power generation needs to bear a certain energy storage cost.

　　In the early stage, the cost per kWh of new energy could not compete with traditional fossil energy. With the advancement of technology, the cost of wind power and photovoltaic power generation has dropped dramatically in the past ten years.

　　According to the statistics of IRENA, the average generation cost of photovoltaic, onshore wind power, and offshore wind power in 2019 is 0.068 / 0.053 / 0.115 USD per kWh, which is a decrease of 82% / 38% / 29% compared with 2010, which has reached the level of traditional fossil energy.

　　Therefore, eco-friendly power generation + affordable energy storage is the future direction of eco-friendly power construction.