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Peng Peng: Understand at a glance the new time-of-use tariff policy is a major benefit to distributed photovoltaics

Polaris Solar Photovoltaic Network News: On July 29, 2021, the National Development and Reform Commission issued the "Notice on Further Improving the Time-of-use Electricity Price Mechanism" [hereinafter referred to as the "Notice"]. A new policy direction is proposed. This document has made major adjustments to the future sales price of electricity. Unlike the electricity reform, the policy mainly focuses on reducing electricity prices. Therefore, the entire document has a profound impact on commercial projects that can directly settle electricity prices with electricity users, which is good for distributed photovoltaics and user-side energy storage. Here, we interpret it for everyone.
(Source: WeChat public account "New Energy Power Investment and Financing Alliance" ID: CNFIA2015 text | Peng Peng Secretary General of China New Energy Power Investment and Financing Alliance)
The time-of-use electricity price, as its name implies, is the electricity price for different time periods. This mainly reflects the different value of electricity at different times, that is, electricity at the same geographic location and at different times has different prices. Prior to the electricity market, the peak-valley flat electricity price was generally adopted. This document proposes peak and deep-valley electricity prices on the basis of peak-valley flat. The 24 hours a day is divided into five types of electricity prices, and the price difference will be further widened. So in this case, how can it be beneficial to distributed photovoltaics? Let's look at it next.
The key points of this document:
#1. Basically confirmed the long-term trend of peak power shortage
And the time period with high electricity price will be more expensive, and the cheaper time period will be cheaper. This article is very important and clarifies the investment background of future projects. That is, try to invest in power generation facilities that can be used during periods of high electricity prices. Distributed photovoltaics is obviously one of them.
#2. The electricity price during peak hours will also show a trend of further widening the spatial spread.
That is, the more the shortage, the more expensive, the ratio of high electricity prices and low electricity prices in different regions will be different. If the spot market is combined in the future, there may be a short-term extremely high electricity price in foreign countries.
#3. It is clarified that the electricity distribution in the future high electricity price period is mainly to use money to speak
Excluding the guaranteed supply of power for the people's livelihood, whoever pays the money will use it first, instead of the traditional administrative allocation of resources, all enterprises take turns to do five off two or four off three. Electricity companies need to make early plans based on their own electricity consumption characteristics.
What are the differences in peak electricity prices:
Let's look at a simple case:
# A place original electricity price: 1 yuan/kWh during peak hours, 0.6 yuan/kWh during normal times, 0.3 yuan/kWh during valley hours, 0.7 yuan/kWh between peak and valley
After the implementation of the new policy, where the system peak-to-valley ratio exceeds 40%, the peak-to-valley price difference is not less than 4:1 in principle; in other places, it is not less than 3:1 in principle. In principle, the increase in peak electricity price based on the peak electricity price shall not be less than 20%. Can refer to the peak electricity price mechanism to establish a deep valley electricity price mechanism.
#新的Fifth gear price: 1.2 yuan/kWh during peak hours, 0.6 yuan/kWh during normal times, 0.3 yuan/kWh during valley hours, peak hours: 1.44 yuan/kWh, deep valley hours, 0.24 yuan/kWh
Under the new policy, the maximum peak-to-valley difference reaches 1.2 yuan per kilowatt-hour of electricity, an increase of about 70%. This difference is sufficient to cover the current cost of energy storage, and the willingness of electricity companies to install rooftop photovoltaics will also be stronger.
At the same time, since a large number of industrial and commercial distributed photovoltaics have signed electricity purchase and sale agreements with customers on the "average price of electricity users at a discount during the day", the old distributed projects will also benefit from the new policy.
Two questions that some friends ask more
#1. Can ground power plants benefit from this policy?
No, the full-on-ground connection mode is not affected by the increase in electricity prices at the sales end. If the sales end lowers the price, then the ground power station will likely reduce revenue due to bidding. The non-adjustable nature of the scenery determines the business model of centralized ground power stations.
#2. Will users' electricity bills increase?
The government’s response is that “the power grid will not charge more”. The power grid does not charge more, but there will be additional fees paid to energy storage facilities. Therefore, some users will have electricity bills increase, depending on the electricity consumption of different users. Habit.
News Source: Polaris Solar Photovoltaic Network News
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