State Grid and South Grid will invest 652.2 billion yuan to promote the development of distributed photovoltaics

Recently, Shanxi, Shanghai, Zhejiang, Anhui, Inner Mongolia and other provinces have signed agreements with the State Grid Corporation to transform rural power grids, reaching consensus
on jointly promoting the scope, goals, supporting policies, fund implementation and establishment of long-term cooperation mechanisms for rural power grid transformation and upgrading projects.
It is understood that before this, Nanwang also signed similar agreements
with five southern provinces and regions.
This round of agricultural network transformation and upgrading is the third agricultural network transformation and upgrading after 1998 and 2010, and the total investment far exceeds the total investment of the previous two agricultural network transformation and upgrading, and the total investment of the State Grid and the South Grid will reach 652.
2 billion yuan.

Li Shimin, deputy director of the Gansu Natural Energy Research Institute, told reporters that the implementation of a new round of rural power grid transformation projects can not only meet the daily power consumption and consumption upgrade of farmers' electricity needs, but also solve the problem of photovoltaic poverty alleviation and grid integration, which will surely strongly promote the development of
distributed photovoltaics.

Just a dozen years ago, power outages on summer nights were the norm in rural areas of China
.
Today, after the previous two upgrades of agricultural networks, this phenomenon has been significantly improved
in most rural areas in China.
However, in some remote and poor areas, in the summer, due to the increase in electricity load, long-term power outages still occur
from time to time.
Li Shimin told reporters that due to historical reasons, the power supply distance of medium and low voltage lines in rural areas in some areas of China is long, the distribution capacity is insufficient, and the problem of "low voltage" still exists
.
The construction of power grids in poor areas and remote ethnic minority areas is relatively lagging behind, and rural power grids in some areas lack systematic transformation
.
Therefore, this large-scale transformation will effectively improve the power supply capacity and reliability
of rural power grids.

According to the plan, it is expected that by 2020, the reliability rate of rural power grid power supply in the South Grid business area will reach 99.
82%, the comprehensive voltage qualification rate will not be less than 97.
9%, the average household distribution capacity will not be less than 2 kVA, 100% will meet the new energy connection to the grid, and the power power coverage rate of poor villages will reach 100%.

In addition, the agricultural grid transformation agreement signed by State Grid and Shanghai also clearly states: on the basis of comprehensively solving the low voltage problem in rural areas of Shanghai, the "13th Five-Year Plan" period will further increase investment, promote the implementation of a new round of Shanghai rural power grid transformation and upgrading project, give priority to the upgrading of power grid in small towns (central villages) in Shanghai, and further improve the power supply capacity and power supply reliability of rural power
grids.

The reporter learned that the recent agreements on the transformation of agricultural networks signed by the State Grid and many provinces clearly emphasize the need to improve the capacity and reliability
of agricultural grid power supply.

The person in charge of the relevant department of the State Grid said that the current round of agricultural network transformation will adhere to the integration of "city, county, urban and rural areas, and distributed farmers", face the planning scope to the whole region, extend the planning depth to low voltage, and completely eliminate single lines
.
Guided by the new rural development plan and the regional target grid, and with eliminating the phenomenon of low electricity voltage and "stuck neck" as the first priority, we will ensure that there is no shortage of electricity in rural areas and that electricity is used well
.

Li Shimin told reporters that in recent years, driven by a series of national policies and measures, the construction and development of new energy such as photovoltaics in China is in the ascendant
.
In the vast rural area and urban-rural junction, renewable distributed energy
resources such as small photovoltaic power plants have emerged.
The connection of these new energy distribution points to the rural distribution network will put forward new requirements
for the safe operation of the power grid.
This round of transformation will surely improve the ability of rural power grids to accept distributed new energy generation, which is of practical significance for promoting the rapid development of
new energy such as photovoltaics.

With the upgrading of rural power grids and the gradual improvement of power grid conditions, rural electricity demand will be further released, stimulating villagers' willingness to
further develop distributed photovoltaics.
For distributed photovoltaics, this is a new opportunity
for rapid development.

As we all know, rural roofing resources are abundant, which provides strong support
for the leverage of the distributed photovoltaic power generation market.
But for the photovoltaic industry, how to meet this demand at the lowest cost under existing conditions is the premise of
opening this market.

Lu Ran, an engineer at Jiangsu Electric Power Design Institute, told reporters that in some rural areas, the power grid infrastructure is backward, and after the transformation of the agricultural grid, the repeated investment in station power supply, transmission lines, and communication equipment can be avoided, thereby reducing the cost
of photovoltaic investment.
In addition, after being transformed into a standardized agricultural network, it can make distributed intervention modular, efficient and convenient, and promote the nearby consumption of photovoltaics, which will inevitably improve the enthusiasm of rural people to build distributed photovoltaics
.

Photovoltaic poverty alleviation has been established by the state as a precise poverty alleviation model during the "Thirteenth Five-Year Plan" period, and has been vigorously promoted throughout the country, and will become an important focus of distributed photovoltaic development in the next few years
.

At present, according to the regulations of the State Grid, the installed capacity of photovoltaic cannot exceed 30% of the total capacity of transformers at grid-connected points, but now the capacity of rural transformers is generally 200~300 kVA
.
According to this calculation, the installed capacity of a village is only tens of kilowatts, which cannot meet the needs
of photovoltaic poverty alleviation scale.
Nowadays, the difficulty of grid connection has become a major bottleneck
restricting the development of photovoltaic poverty alleviation.

In this regard, in February this year, the National Development and Reform Commission issued the "Opinions on Implementing a New Round of Rural Power Grid Transformation and Upgrading Projects during the Thirteenth Five-Year Plan Period," which clearly pointed out: Focus on promoting the transformation and upgrading
of rural power grids in key counties of the state's poverty alleviation and development work, concentrated contiguous extremely poor areas, and old revolutionary areas.

Industry insiders told reporters that for a long time, an important reason for the difficulty of grid connection is that the procedures for grid transformation are cumbersome, and the agricultural grid transformation agreement signed by the State Grid and the provincial government clearly proposes to simplify the project approval procedures and prioritize the implementation of construction conditions, this measure is very good, will accelerate the transformation progress, and completely open up the power export
of photovoltaic poverty alleviation in remote and backward areas.

Anhui, as the first batch of pilot provinces of photovoltaic poverty alleviation projects in the country, issued the "Implementation Opinions on the Transformation and Upgrading of Rural Power Grids in Poor Areas" a few days after the National Development and Reform Commission's agricultural grid transformation opinions were issued, which clearly requires: power grid enterprises should strengthen the construction of backbone network frames, accelerate the transformation of medium and low voltage power grids, improve the power grid absorption capacity and intelligence level, improve auxiliary services, optimize operation and scheduling, and ensure the safe access and full access
of photovoltaic poverty alleviation projects in the province.

In fact, one of the important reasons why Anhui attaches great importance to the transformation of agricultural networks is that it has tasted the sweetness in photovoltaic poverty alleviation
.
For example, Jinzhai County, as one of the first five pilot counties of Anhui's first photovoltaic poverty alleviation project last year, received 262 million yuan of agricultural network upgrading funds as early as 2015, the highest investment in history, exceeding the total of the previous five years
.
Through the implementation of the agricultural grid upgrading project, the power supply capacity and quality of the agricultural grid have been comprehensively improved, and last year, the photovoltaic poverty alleviation power station in the county has basically been fully connected to the grid, making an important contribution
to the local poverty alleviation work.