Energy Internet opens up distributed photovoltaic meridians
Photovoltaic systems, commonly known as solar power systems, are a modern method of generating electricity by directly converting sunlight into electrical energy using the photovoltaic effect of semiconductor materials. These systems can operate independently or be connected to the grid, offering flexibility in power generation and usage.
Solar photovoltaic systems are typically categorized into two types: centralized and distributed. Centralized systems involve large-scale installations, such as extensive photovoltaic farms in remote areas, while distributed systems are smaller, usually under 6MW, and include rooftop installations for commercial, industrial, and residential use. This distribution model allows for more localized energy production and consumption.
The photovoltaic effect, often referred to as PV, is the process where light striking a semiconductor or a semiconductor-metal combination creates an uneven electric potential. In practical applications, this phenomenon is used to convert sunlight into electricity through solar panels made from materials like silicon. These panels generate direct current (DC) when exposed to light, making them a common feature in everyday life, from small devices to large-scale power stations.
Photovoltaic technology offers numerous advantages. It has no moving parts, requires no additional fuel other than sunlight, and can function efficiently even in indirect light. Its adaptability makes it ideal for various locations, including urban rooftops and open spaces. Since its first use in space satellites in 1958, PV technology has evolved rapidly and now powers everything from parking meters to massive solar farms worldwide.
The global solar market has experienced significant growth over the past decade, with an average annual increase of 47.4% in installed capacity. From 598 MW in 2003 to 2,826 MW in 2007, the industry is expected to reach 9,917 MW by 2012. This expansion is driven by increasing demand, favorable tariffs, and government incentives aimed at promoting renewable energy sources.
Many countries, including Germany, Italy, Spain, the U.S., France, and South Korea, have introduced financial incentives such as tax rebates and credits to encourage the adoption of solar energy. While traditional power companies may resist these changes, governments continue to support solar development due to concerns about energy independence and environmental sustainability.
As environmental issues and climate change become more pressing, solar energy provides a clean and sustainable alternative to fossil fuels. Governments around the world are implementing policies to promote renewable energy, including feed-in tariffs and tax incentives, which have significantly boosted the photovoltaic industry.
In 2017, the distributed photovoltaic sector was expected to see rapid growth, with China's installed capacity potentially reaching nearly 8 GW. Despite challenges such as resource development, financing, grid connection, and payment collection, innovative solutions like the Energy Internet are helping to overcome these obstacles.
Companies like Beijing Dongrun Qingneng and Beijing Energy Cube Data Technology are leveraging big data, satellite telemetry, and advanced analytics to identify and optimize rooftop resources for solar projects. Their platforms provide integrated services, from project planning to operation and maintenance, enabling resource owners to maximize their returns.
With the help of cutting-edge technologies, these platforms can predict future energy output and assess the investment value of each site, ensuring more accurate and stable returns. As the Energy Internet continues to evolve, it is opening new pathways for the widespread adoption of distributed photovoltaics, paving the way for a cleaner and more sustainable energy future.
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