Advantages and disadvantages of grid-connected photovoltaic systems

The solar on-grid power generation system converts solar energy into electrical energy and sends the electrical energy directly to the grid through the grid-connected inverter without the need to store energy in batteries. The solar on-grid power generation system represents the development direction of solar power generation and is a very attractive energy utilization technology in the 21st century.

Advantages and disadvantages of solar on-grid power generation system

 Advantage

(1) Use clean and renewable natural energy, solar power generation, do not consume non-renewable energy with limited resources, have no greenhouse gas and pollutant emissions during use, are in harmony with the ecological environment, and are in line with the sustainable economic and social development strategy.

(2) Feed the generated energy into the power grid and use the power grid as an energy storage device, eliminating the need for batteries. Compared with an independent solar photovoltaic system, the construction investment can be reduced by 35%-45%, greatly reducing the cost of power generation. Omitting the battery can avoid secondary pollution of the battery and increase the mean time between failures of the system.

(3) The perfect combination of photovoltaic components and buildings can not only generate electricity, but can also be used as building materials and decorative materials, making full use of material resources and exerting multiple functions. It not only helps to reduce construction costs, but also improves the technology of buildings. content and increase the “selling point”.

(4) Distributed construction, nearby decentralized power supply, and flexible access to the power grid not only help strengthen the power system's ability to withstand wars and disasters, but also help improve the load balance of the power system and reduce line losses.

(5) It can play a role in peak regulation. Networked solar photovoltaic systems are a hot spot and focus in the field of photovoltaic applications in developed countries around the world. They are the mainstream development trend of solar photovoltaic power generation in the world, with a huge market and broad prospects.

Disadvantages

1. Ground applications are intermittent and random, and power generation is related to climatic conditions. It is impossible or rare to generate power at night or on rainy days;

2. Low energy density. Under standard conditions, the solar radiation intensity received by the ground is 1000 W/m 2. When using large specifications, a larger area needs to be occupied;

3.The price is still relatively expensive, 3 to 15 times that of conventional power generation, and the initial investment is high.

Therefore, it is for users who have already installed a grid-connected system but want more stable power. WOCOR has launched the Tribune Series Energy Controller, a cutting-edge solution that seamlessly integrates the MPPT battery controller and energy management system into a single & efficient unit. Which provides a comprehensive solution for microinverter storage system. Help customers solve the excessed solar energy storage into the battery that cannot be achieved by traditional microinverters, even freely control the microinver's output to the main grid.