Sungrow is taking action to support the energy internet

China Energy Storage Network: Globally, gradually getting rid of dependence on fossil energy is the goal of all countries to achieve energy transformation. To this end, many countries have proposed ambitious renewable energy development goals. As early as 2010, the European Union proposed to achieve 100% renewable energy substitution by 2050; Germany proposed that renewable energy power generation account for more than 85% in 2050, and total energy consumption will be reduced by 50% compared with 1990; the United States proposed that renewable energy power generation account for more than 80% in 2050; Japan proposed that non-fossil energy account for more than 85% in 2050. In this energy transformation, China also jointly released the "China 2050 High Proportion Renewable Energy Development Scenario and Path Study" in April last year by a number of energy research institutions, proposing that the proportion of renewable energy in energy consumption will reach 60% by 2050.

In the rapid development of renewable energy, the photovoltaic industry accounts for a high proportion. It is expected that during the 13th Five-Year Plan period, the photovoltaic installed capacity will reach 150 GW, with an average annual increase of 20 GW, and the cumulative installed capacity of distributed and centralized will account for nearly 1:1.

The development goals and main tasks of the photovoltaic industry during the 13th Five-Year Plan are as follows: First, to achieve grid parity by continuously reducing system costs, increasing system power generation, and improving system overall efficiency; second, to have more friendly grid adaptability and achieve flexible access. Rapidly respond to grid dispatch, support grid stability, and participate in frequency and peak regulation; third, to achieve energy interconnection through the adaptability of multiple scenarios such as "photovoltaic + Internet", "photovoltaic + energy storage", and the compatibility of multiple energy sources and systems.

Photovoltaic has great potential, but also faces many challenges, such as large deserts, hills, industrial and commercial roofs, fishery photovoltaic complementarity, floating photovoltaic, agricultural greenhouses, etc., which bring huge challenges to power station design and investment decisions.

The intermittent and unstable characteristics of photovoltaics have restricted their development. The grid security issues that have emerged as the penetration rate continues to increase are mainly reflected in the weak terminal grid, the poor stability of the system operation after photovoltaic grid connection, voltage fluctuations and even oscillations; the differences in power generation and power consumption areas, and the limited grid absorption capacity have led to high abandonment rates, especially in the western region, where local load absorption is limited and power restrictions are severe; and as the photovoltaic penetration rate continues to increase, the peak and frequency regulation problems of the grid have become increasingly prominent.

To solve this problem, Sungrow, the largest photovoltaic inverter company in China, is actively seeking solutions and trying to break through.

The inverter is a gathering center for various operating data of photovoltaic power stations, and is also the core entrance for photovoltaic power stations to integrate into the energy Internet. According to the development needs of photovoltaic applications, Sungrow has innovatively proposed the design concept of "adapting measures to local conditions and scientific design", and launched products that meet various application scenarios such as large ground, complex hills, and household poverty alleviation, to minimize system costs. The conversion efficiency of photovoltaic inverters exceeds 99%, reaching the international leading level, ensuring better system efficiency and helping photovoltaic power generation to achieve grid parity as soon as possible. Inverter products and solutions have been sold in batches to more than 50 countries including Germany, Italy, Australia, the United States, and Japan. As of the end of last year, Sungrow has accumulated more than 24 million kilowatts of inverters installed in the global market, which can produce 31 billion kilowatt-hours of green electricity for the earth and reduce carbon dioxide emissions by 25 million tons each year.

Relying on its advantages in the inverter field, Sungrow actively promotes cross-border integration to achieve the effect of 1+1>2. Based on the Internet and big data mining technology, it realizes intelligent operation and maintenance of power stations. By combining photovoltaics with energy storage, it solves the impact of the intermittent and random characteristics of photovoltaic power generation on the power grid, allowing the photovoltaic system to be flexibly connected to the power grid, laying the foundation for the ultimate realization of energy Internet.

To this end, Sungrow and Alibaba Cloud have jointly developed a photovoltaic power station operation and maintenance management platform, the Smart Photovoltaic Cloud iSolarCloud, which interconnects distributed photovoltaic power stations with mobile applications, microgrids, energy consumption applications, load management, financial payments, etc., forming an energy Internet architecture. It can achieve multiple goals such as optimizing energy structure, improving power supply reliability, saving land, reducing power outage losses, improving power quality, increasing energy utilization, reducing carbon dioxide emissions, and reducing investment.

iSolarCloud, the smart photovoltaic cloud, can establish a standardized operation and maintenance and management platform for group users, realize the real-time standard data information sharing, power station equipment failure warning, remote expert consultation and big data analysis, knowledge base construction and other functions of all its photovoltaic power stations, effectively improve the power generation efficiency of power stations, save operation and maintenance costs, improve the automation and specialization of power stations, and achieve four core values: stable income growth, asset protection, standardized management, and support for decision-making. At the same time, the smart photovoltaic cloud also provides a settlement interface, which can realize the automatic allocation and settlement of electricity charges for power station owners, users, and power grids. The smart photovoltaic cloud can greatly save customers the operation and maintenance costs of power stations and increase power generation.

Sungrow, which has been tracking the development of photovoltaic power generation and has a 19-year history, keeps pace with the times in the process of photovoltaic development. In the era of big data, it actively embraces cross-border integration, takes the lead in technology integration, system integration, and industry integration, and becomes one of the most promising companies in the field of photovoltaic microgrids. At present, Sungrow has realized the full layout of energy Internet, including smart inverters + new energy power generation + smart photovoltaic cloud + energy storage + new energy vehicle electronic control. In the future, with the continuous implementation and increase of energy storage microgrid and new energy vehicle policies, Sungrow will surely usher in a broader development space.