Do you know the difference between distributed photovoltaic (PV) and ground-mounted PV?
In earlier years, many people may have been unfamiliar with photovoltaic power generation and lacked a clear understanding of its benefits. However, with the advancement of technology in recent years, photovoltaic power generation has gradually entered the public eye and become well-known. As one of the most competitive strategic emerging industries, photovoltaic power generation is developing rapidly at an immeasurable pace.
The principle of photovoltaic power generation is relatively simple and easy to understand. It is a technology that directly converts light energy into solar energy by utilizing the photovoltaic effect at the semiconductor interface. According to relevant data, the newly installed photovoltaic capacity from January to August 2019 was 14.95 GW. The International Energy Agency (IEA) stated that it expects the global newly installed renewable energy power capacity to reach 200 GW in 2019, an increase of 12% year-on-year, the highest growth rate since 2015.
With the rapid development of photovoltaics, what are the differences between distributed photovoltaic (PV) and ground-mounted PV power stations? Energy & Environment Treasure will give you a brief introduction:
Distributed photovoltaic power stations specifically refer to photovoltaic power generation facilities built near user sites, operating in a mode of self-consumption by the user side, with surplus electricity fed into the grid, and characterized by balancing and regulating the power distribution system.
Ground-mounted power stations refer to solar photovoltaic power stations that are connected to the public power grid and share the task of power supply.
Distributed photovoltaic power stations differ from large-scale ground-mounted photovoltaic power stations in the following aspects:
1. Project Location
Large-scale ground-mounted photovoltaic (PV) power plants are typically located in suburban areas or remote deserts and hilly regions. Distributed PV, on the other hand, emphasizes on-site consumption and is generally located in industrial plants, commercial buildings, agricultural facilities, municipal and other public buildings, remote agricultural and pastoral areas, and islands. Distributed PV power plants involve more complex issues in project site selection and agreement signing, requiring consideration of factors such as the integrity of the building owner, the safety and lifespan of the building, and the risk of default.
2. Electricity Price
Large-scale ground-mounted power plants adopt three regional benchmark electricity prices (centralized purchase and sales model): 0.90, 0.95, and 1.0 yuan/kWh.
For both self-consumption and reverse-feeding of distributed photovoltaic (PV) power, a subsidy of 0.42 yuan/kWh is provided. The self-consumption of distributed PV power is calculated based on the grid sales price plus 0.42 yuan/kWh; the reverse-feeding of distributed PV power is purchased based on the local desulfurization electricity price (approximately 0.35-0.45 yuan/kWh) plus 0.42 yuan/kWh. The subsidy funds for distributed PV projects are transferred from the grid company to the power generation project. Investors can choose to invest in distributed PV in industrial parks with higher grid sales prices.
3. Project Process
The project process for large-scale ground-mounted power stations in most provinces involves obtaining permits, feasibility study reports and reviews, obtaining supporting documents, project approval, and construction commencement. Currently, some provinces and cities have simplified this process to filing with municipal or county-level departments, obtaining supporting documents, and construction commencement. The process for distributed photovoltaic projects is the same: obtaining documents, filing with municipal or county-level departments, and construction commencement; some areas have even simpler procedures. During the initial construction phase of the Nenghuanbao power station project, the company conducted meticulous research and preparation, including surveys of the location of the electricity-consuming enterprise, the land used by the enterprise, the factory buildings and rooftops of the enterprise, and the enterprise's electricity consumption patterns, to ensure stable operation during the initial phase; simultaneously, it provided the enterprise with sufficient electricity and facilitated the grid connection of surplus power.
As a new energy company, Nenghuanbao takes concrete actions to support the development of my country's real economy, save electricity costs for enterprises, enhance their market competitiveness, provide individuals with various types of comprehensive new energy trading services, promote the development of the environmental protection industry, and truly achieve a win-win situation for humanity and the environment!
