What is the history of solar energy?

From the earliest days of solar-powered satellites to modern rooftop arrays and utility-scale solar farms, this is the complete history of solar energy—and a look at its exciting potential in the years to come. The story of solar energy begins in 1839 with the work of French physicist Edmond Becquerel.

When did solar power become a technology?

In 1958, the Vanguard 1 satellite became the first spacecraft to be powered by solar energy, showcasing the reliability and potential of photovoltaic technology in extreme conditions. As the decades progressed, advancements in manufacturing processes and materials led to significant improvements in efficiency and cost-effectiveness.

When did solar energy become a standard power system?

As NASA pushed further out into the solar system in the 1970s, photovoltaics became the standard power system for its spacecraft and remains so today. Back on Earth, solar energy technology continued to advance gradually through the mid-20th century but remained uncompetitive with cheap, readily available fossil fuels.

When did solar panels become possible?

Although solar panel production became feasible in the 1960s and 1970s. Technology was still too expensive for most people at the time. To lower the price of solar energy, researchers kept working on new technologies. The first P-N junction cell was created after semiconductors gained popularity.

How has solar energy technology evolved in the 21st century?

**Answer:** In the 21st century, solar energy technology has evolved significantly with advancements in photovoltaic efficiency, the introduction of thin-film solar cells, and the growth of large-scale solar farms, making solar energy more accessible and cost-effective.

When did solar energy become a viable alternative energy source?

Back on Earth, solar energy technology continued to advance gradually through the mid-20th century but remained uncompetitive with cheap, readily available fossil fuels. This began to change with the 1970s oil crisis, as skyrocketing oil prices and uncertainty in global energy markets highlighted the need for alternative energy sources.