Minutes of Expert Meeting | Minutes of Zhejiang Sunoren Solar Technology Research

1. Although the electricity price of photovoltaic power generation in the peak and valley goes down, the demand for electricity in the southern region is still greater than the supply, and there is no problem with consumption. Looking at it comprehensively, the impact on the revenue of the power station will not be significant.

2. Photovoltaics, energy storage, and charging piles are all modules that the company wants to develop microgrids, and they will definitely be the direction for the development of integrated energy services in the future.

3. The rate of return still needs to be in Zhejiang and Guangdong areas, because the electricity price is relatively high, and there are 2 off-peak power periods every day, which can achieve two charging and two discharging.

Q: If the electricity price of photovoltaic power generation goes down in the peak and valley, what impact will it have on the company?

During the daytime period of power generation, the valley power is not very long, and the current policy is to expand the peak-to-valley price difference. Although the price of valley electricity has decreased, the peak electricity price will also increase, which can be offset. In Zhejiang and other southern regions, the demand for electricity is still greater than the supply, and there is no problem with consumption. Our kind of spontaneous use of surplus electricity for online use has little impact on the power grid, and there is no problem with consumption. Looking at it comprehensively, the impact on the revenue of the power station will not be significant. We also have a demonstration project for industrial and commercial energy storage, which is a peak-to-valley price difference arbitrage model. If the peak-to-valley price difference expands, it will also be good for our industrial and commercial energy storage.

Q: The rate of return of industrial and commercial energy storage.

The comprehensive investment cost is 2 yuan for a 1-watt hour, and the IRR is 7%, which is not up to our 9% requirement. The investment income of our power station can reach more than 12%, and we still hope to invest the funds in places with higher income.

Q: Microgrid.

Photovoltaic, energy storage, charging piles, etc. are all modules that we want to develop microgrids. In the future, they will definitely be developed with integrated energy services. In the future, it may involve equipment energy management, etc. It's just that now we are going to mature each module one by one.

Q: Is the 9% revenue requirement for industrial and commercial energy storage internal to the company?

Yes. For state-owned enterprises, 6% may be enough.

Q: How much is the battery price per watt-hour to meet the 9% requirement?

Now the price of energy storage cells is 9 cents, see if it can be reduced to 7 cents, and the IRR is almost 9%. It is also OK to further expand the electricity price difference. The rate of return still needs to be in Zhejiang and Guangdong areas, because the electricity price is relatively high, and there are 2 off-peak power periods every day, which can achieve two charging and two discharging. These projects of mine, photovoltaics, charging piles, and industrial and commercial energy storage, are based on existing customers, and it is easier to extend them.