人类利用太阳能已有几千年的历史，但发展一直很缓慢，现代意义上的开发利用

Humans have been using solar energy for thousands of years, but the development has been very slow, and the development and utilization in the modern sense is only a matter of nearly half a century. In 1954, Bell Labs in the United States developed the world's first solar cell, which opened a new chapter in the development and utilization of solar energy. After that, the development and utilization of solar energy technology developed rapidly, especially the worldwide oil crisis that broke out in the 1970s strongly promoted the development and utilization of solar energy. <br>After nearly half a century of hard work, solar energy utilization technology and its industry have emerged, becoming a new force in the energy industry. As we enter the 21st century, human beings will face a major challenge to achieve sustainable economic and social development. Economic development under the dual constraints of limited resources and strict environmental protection requirements has become a hot and difficult issue in the world. The energy problem will become more prominent. On the one hand, the demand for conventional energy has increased sharply and energy resources are seriously lacking. On the other hand, the development and utilization of fossil energy has brought a series of problems such as environmental pollution and greenhouse effect. The problem is largely caused by the development and utilization of energy, especially fossil energy. Therefore, in order to solve the above-mentioned energy problems and achieve sustainable development, human beings can only rely on scientific and technological progress to develop and utilize renewable clean energy on a large scale. With its unique advantages, the development and utilization of solar energy will surely develop by leaps and bounds in the 21st century, and will eventually play an important role in the transfer of the world's energy structure, becoming the dominant energy source in the late 21st century. If the 20th century is the century of petroleum, then the 21st century is the century of renewable energy, the century of solar energy.

Human beings have used solar energy for thousands of years, but its development has been very slow. The development and utilization in the modern sense is only about half a century. In 1954, Bell Laboratories developed the world's first solar cell, which opened a new chapter in the development and utilization of solar energy. After that, the development and utilization technology of solar energy developed rapidly, especially the world oil crisis in the 1970s, which effectively promoted the development and utilization of solar energy.<br>After nearly half a century of efforts, solar energy utilization technology and its industry have sprung up and become a new force in the energy industry. In the 21st century, mankind will face the major challenge of realizing sustainable economic and social development. Under the dual constraints of limited resources and strict requirements of environmental protection, economic development has become a global hot and difficult issue. The energy problem will be more prominent. On the one hand, the demand for conventional energy increases sharply and energy resources are seriously scarce, on the other hand On the one hand, the development and utilization of fossil energy has brought a series of problems such as environmental pollution and greenhouse effect. The current environmental problems are largely caused by the development and utilization of energy, especially fossil energy. Therefore, mankind can only rely on scientific and technological progress to develop and utilize renewable clean energy on a large scale in order to solve the above energy problems and achieve sustainable development. With its unique advantages, the development and utilization of solar energy will make great progress in the 21st century, and will eventually play an important role in the transfer of world energy structure and become the leading energy in the late 21st century. If the 20th century is the oil century, then the 21st century is the century of renewable energy and solar energy.

Human beings have used solar energy for thousands of years, but the development has been very slow, and the development and utilization in the modern sense is only about half a century. In 1954, bell laboratory developed the first solar cell in the world, which opened a new chapter in the development and utilization of solar energy. After that, the technology of solar energy development and utilization developed rapidly, especially the worldwide oil crisis that broke out in 1970s effectively promoted the development and utilization of solar energy. After nearly half a century's efforts, solar energy utilization technology and its industry have sprung up everywhere and become a new force in the energy industry. As we enter the 21st century, mankind will face the great challenge of realizing sustainable economic and social development. Under the dual constraints of limited resources and strict environmental protection requirements, developing economy has become a global hot and difficult issue. The energy problem will be more prominent. On the one hand, the demand for conventional energy is sharply increasing and energy resources are seriously scarce. On the other hand, the development and utilization of fossil energy has brought a series of problems such as environmental pollution and greenhouse effect. The current environmental problems are largely caused by the development and utilization of energy, especially fossil energy. Therefore, in order to solve the above energy problems and realize sustainable development, human beings can only rely on scientific and technological progress to develop and utilize renewable clean energy on a large scale. With its unique advantages, the development and utilization of solar energy will surely make great progress in the 21st century, and will eventually play an important role in the world energy structure transfer and become the leading energy in the late 21st century. If the 20th century is the century of oil, then the 21st century is the century of energy and solar energy.