Solar panel

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The energy contained in all the oil reserves on Earth that can be extracted is radiated to Earth by the Sun in 1.5 days. The current annual energy consumption of humanity would be fully covered by one hour of energy output from the Sun.

However, a major barrier to the uptake of solar panels is their price, two of the main reasons being their energy and high-tech complexity to produce, their small scale and the fact that they can only work efficiently in sunlight. In recent years, however, the price of solar panels has been falling steadily (mainly due to the boom in Chinese solar panel production and the emergence of mass production).

Solar panels usually come with a 20-25 year warranty and typically have a lifetime of 20-40 years. In the longer term, the use of solar energy is expected to grow significantly.

Solar panels are different from the high-power solar power plants that exist today. They typically use a different technology; in solar thermal power plants, the sun’s radiant heat is transferred to a fluid by radiative heat transfer, which is superheated by a steam turbine-driven electric generator to produce electricity. The advantage of solar power generation is that it does not emit any by-products, so it is environmentally friendly and a renewable energy source due to the inexhaustible nature of solar radiation, while the disadvantages are high installation costs, highly variable output depending on solar radiation and the difficulty of storing the unevenly generated energy.

There are no reliable data on the first appearance of solar panels in Hungary and their initial deployment and use by the public, and it is difficult to determine when the first solar panels were installed due to a lack of accurate documentation. Taking into account the architectural and energy trends in the world and the region, it is likely that the emergence of industrial and commercial solar applications in Hungary was also in the late 1980s and early 1990s.