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A solar thermal collector collects heat by absorbing sunlight. The term "solar collector" commonly refers to a device for solar hot water heating, but may also refer to large power generating installations such as solar parabolic troughs and solar towers, or to non-water-heating devices such as solar cookers or solar air heaters.
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Search interest data over the past 12 months indicates that this topic periodically attracts global attention. Sudden spikes often correlate with major news events, public statements, or geopolitical developments.