近年來，我國太陽能光伏發展迅速，不少人都在自家屋頂上安裝了光伏發電設備，或者想安裝設備，但仍有一些疑慮。我們就來看看在屋頂安裝光伏發電設備的好處與壞處，幫助大家加強了解！

　　In recent years, the development of solar photovoltaics in China has been rapid, and many people have installed photovoltaic power generation equipment on their roofs or want to install equipment, but there are still some doubts. Let's take a look at the benefits and drawbacks of installing photovoltaic power generation equipment on rooftops, to help everyone strengthen their understanding!

　　先說好處：

　　First, let's talk about the benefits:

　　對于大部分人來說，屋頂都是閑置的，安裝光伏發電設備后，電量可以拿來自己用，多余的電上網，即能省電費，也可以為家庭帶來收益。同時屋頂安裝光伏設備，還能起到遮陽的作用，降低室內溫度。

　　For most people, the roof is idle. After installing photovoltaic power generation equipment, the electricity can be used for personal use. The excess electricity can be connected to the grid, which can save electricity costs and bring income to the family. At the same time, installing photovoltaic equipment on the roof can also provide shade and reduce indoor temperature.

　　然后說不足：安裝屋頂光伏發電站需要一定的成本，雖然說成本不斷下降，但家用光伏電站依舊需要上萬元，要等3-5年才能回本。

　　Then let's talk about the shortcomings: Installing rooftop photovoltaic power stations requires a certain cost, although the cost continues to decrease, household photovoltaic power stations still require tens of thousands of yuan, and it will take 3-5 years to recoup the cost.

　　屋頂光伏發電不穩定，受地域光照的影響較大，另外冬天比夏天的發電效率低，雨季長短決定了發電的效率高低。

　　Rooftop photovoltaic power generation is unstable and greatly affected by regional lighting. In addition, the power generation efficiency is lower in winter than in summer, and the length of the rainy season determines the efficiency of power generation.

　　雖然光伏板的壽命長達20多年，但是在使用的過程中，我們需要對它進行定期的維護，不然容易出現發電量降低，光伏板損壞等情況。

　　Although photovoltaic panels have a lifespan of over 20 years, regular maintenance is necessary during use to prevent potential issues such as reduced power generation and damage to the panels.

　　然后很多人擔心光伏發電有輻射，對身體有影響，其實完全不用擔心，光伏發電是首先將光能通過半導體的特性直接轉化為直流電能，然后再通過逆變器將直流電轉換成交流電以備直接使用，不會產生輻射。

　　Many people are concerned that photovoltaic power generation may emit radiation and have an impact on their health. However, there is no need to worry at all. Photovoltaic power generation first converts light energy directly into direct current through the characteristics of semiconductors, and then converts direct current into alternating current through inverters for direct use, without generating radiation.

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