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冬天到了，會(huì)影響光伏發(fā)電嗎？

返回列表 來源：極沖新能源2023-11-28 16:54 發(fā)表于浙江發(fā)布日期： 2023.12.10 瀏覽次數(shù)：

冬天光伏發(fā)電的確會(huì)受到一些因素的影響，但總體來說并不會(huì)影響光伏發(fā)電的效率。

冬季光伏發(fā)電的影響因素

640 (3) 如果說高溫下的光伏電池板過熱、效率下降是夏季光伏發(fā)電的一個(gè)影響因素的話，那么冬季光伏發(fā)電的效率下降主要有以下幾點(diǎn)原因。

1. 日照時(shí)間減短：冬季白天短夜長，光照時(shí)間相對(duì)短暫。光照時(shí)間減短意味著光線照射的時(shí)間變短，造成光伏電能產(chǎn)生量減少。

2. 溫度影響：光伏電池板的溫度會(huì)影響組件的效率。夏季高溫時(shí)效率會(huì)減少，冬季由于天氣較為寒冷，光伏組件的表面溫度卻顯著減少，根據(jù)光伏電池的電特性理論分析可以得出，隨著溫度的降低，每個(gè)太陽能單元產(chǎn)生電能的效率反而增高。

3. 氣象條件差：在天氣惡劣的情況下，如大雪天氣，將會(huì)嚴(yán)重影響光伏電力系統(tǒng)的發(fā)電效率。

光伏發(fā)電受影響的程度

640 (4)

盡管冬季光伏發(fā)電受到上述因素影響，但根據(jù)研究表明，這些因素的影響并不會(huì)太大，對(duì)光伏發(fā)電量的影響甚至不到10%。雖然在冬季比夏季光伏發(fā)電量稍微少一些，但日照時(shí)間雖短，但其輻照值較大，可以形成優(yōu)良的發(fā)電環(huán)境。因此，總的來說，光伏發(fā)電并不會(huì)因?yàn)槎镜牡絹矶艿接绊憽?

綜上所述，冬季光伏發(fā)電的確會(huì)受到一些因素的影響，但總體來說，該影響不至于影響到光伏發(fā)電的效率。不過，若要保證光電站的穩(wěn)定發(fā)電和發(fā)電效率，還需注意對(duì)光伏電池板的清理，定期維護(hù)和保養(yǎng)等。

If the overheating and efficiency decline of photovoltaic panels under high temperatures are one of the influencing factors of summer photovoltaic power generation, then the main reasons for the efficiency decline of winter photovoltaic power generation are as follows.

1. Shortening of sunshine duration: In winter, the days are shorter and the nights are longer, and the sunshine duration is relatively short. Shortening the illumination time means that the duration of light exposure becomes shorter, resulting in a decrease in the amount of photovoltaic energy produced.

2. Temperature effect: The temperature of photovoltaic panels can affect the efficiency of the components. During high temperatures in summer, efficiency decreases, while in winter, due to colder weather, the surface temperature of photovoltaic modules significantly decreases. According to the theoretical analysis of the electrical characteristics of photovoltaic cells, it can be concluded that as the temperature decreases, the efficiency of each solar cell in generating electricity actually increases.

3. Poor meteorological conditions: In severe weather conditions, such as heavy snow, it will seriously affect the power generation efficiency of the photovoltaic power system.