在全球積極推動(dòng)可持續(xù)發(fā)展、應(yīng)對(duì)氣候變化的大背景下，清潔能源的開發(fā)與利用成為各行業(yè)關(guān)注的焦點(diǎn)。廠房屋頂光伏發(fā)電作為一種極具潛力的分布式能源解決方案，正逐漸在工業(yè)領(lǐng)域嶄露頭角，為企業(yè)帶來經(jīng)濟(jì)與環(huán)境的雙重效益，成為工業(yè)綠色轉(zhuǎn)型的重要力量。?

Against the backdrop of actively promoting sustainable development and addressing climate change globally, the development and utilization of clean energy has become a focus of attention for various industries. As a highly potential distributed energy solution, rooftop photovoltaic power generation is gradually emerging in the industrial field, bringing dual economic and environmental benefits to enterprises and becoming an important force for industrial green transformation. ?

工作原理：光與電的神奇轉(zhuǎn)換?

Working principle: The miraculous conversion of light and electricity

廠房屋頂光伏發(fā)電系統(tǒng)主要基于半導(dǎo)體材料的光電效應(yīng)原理工作。系統(tǒng)中的核心部件是太陽能電池板，通常由多個(gè)光伏電池單元組成。光伏電池一般采用單晶硅、多晶硅或非晶硅等半導(dǎo)體材料制成。當(dāng)太陽光照射到太陽能電池板上時(shí)，光子與半導(dǎo)體材料中的原子相互作用，激發(fā)電子躍遷，產(chǎn)生電子 - 空穴對(duì)。在半導(dǎo)體材料內(nèi)部的電場作用下，電子和空穴分別向相反方向移動(dòng)，從而形成電流。?

The photovoltaic power generation system on the roof of the factory mainly works based on the photoelectric effect principle of semiconductor materials. The core component of the system is the solar panel, which is usually composed of multiple photovoltaic cells. Photovoltaic cells are generally made of semiconductor materials such as monocrystalline silicon, polycrystalline silicon, or amorphous silicon. When sunlight shines on a solar panel, photons interact with atoms in the semiconductor material, exciting electron transitions and producing electron hole pairs. Under the action of the electric field inside the semiconductor material, electrons and holes move in opposite directions, forming an electric current. ?

這些產(chǎn)生的直流電通過逆變器進(jìn)行轉(zhuǎn)換，將直流電轉(zhuǎn)變?yōu)榻涣麟?，以滿足工廠內(nèi)部用電設(shè)備的需求。逆變器不僅實(shí)現(xiàn)了電流形式的轉(zhuǎn)換，還具備最大功率點(diǎn)跟蹤（MPPT）功能，能夠根據(jù)光照強(qiáng)度和溫度等環(huán)境因素的變化，自動(dòng)調(diào)整光伏電池的工作狀態(tài)，使其始終保持在最大功率輸出點(diǎn)附近，提高光伏發(fā)電系統(tǒng)的整體效率。經(jīng)過逆變器轉(zhuǎn)換后的交流電，一部分直接供給工廠內(nèi)部的生產(chǎn)設(shè)備、照明系統(tǒng)等使用，實(shí)現(xiàn)就地消納；剩余的電量則可通過電網(wǎng)連接裝置，輸送到電網(wǎng)中，實(shí)現(xiàn)余電上網(wǎng)，為企業(yè)創(chuàng)造額外的經(jīng)濟(jì)效益。?

The generated DC electricity is converted into AC electricity through an inverter to meet the needs of internal electrical equipment in the factory. The inverter not only converts the current form, but also has maximum power point tracking (MPPT) function, which can automatically adjust the working state of the photovoltaic cell according to changes in environmental factors such as light intensity and temperature, so as to always maintain it near the maximum power output point and improve the overall efficiency of the photovoltaic power generation system. After being converted by the inverter, a portion of the AC power is directly supplied to the production equipment, lighting systems, etc. inside the factory for on-site consumption; The remaining electricity can be transmitted to the grid through grid connection devices, achieving grid connection and creating additional economic benefits for enterprises. ?

顯著優(yōu)勢：經(jīng)濟(jì)與環(huán)保的雙贏選擇?

Significant advantage: a win-win choice between economy and environmental protection

降低用電成本?

Reduce electricity costs

對(duì)于工業(yè)企業(yè)而言，電費(fèi)支出往往占據(jù)生產(chǎn)成本的較大比重。廠房屋頂光伏發(fā)電系統(tǒng)能夠利用閑置的廠房屋頂空間，將太陽能轉(zhuǎn)化為電能，為企業(yè)提供部分或全部電力供應(yīng)。以一家中等規(guī)模的制造企業(yè)為例，假設(shè)其廠房屋頂面積為 10,000 平方米，安裝光伏發(fā)電系統(tǒng)后，平均每天可發(fā)電約 4,000 度。按照當(dāng)?shù)毓I(yè)用電價(jià)格每度 1 元計(jì)算，每天可節(jié)省電費(fèi) 4,000 元，一年（按 300 個(gè)工作日計(jì)算）則可節(jié)省電費(fèi)高達(dá) 120 萬元。這對(duì)于企業(yè)來說，是一筆相當(dāng)可觀的成本節(jié)約，有助于提高企業(yè)的市場競爭力。?

For industrial enterprises, electricity expenses often account for a significant proportion of production costs. The rooftop photovoltaic power generation system of a factory building can utilize idle roof space to convert solar energy into electrical energy, providing partial or complete power supply for the enterprise. Taking a medium-sized manufacturing enterprise as an example, assuming its factory roof area is 10000 square meters, after installing a photovoltaic power generation system, it can generate an average of about 4000 kWh of electricity per day. According to the local industrial electricity price of 1 yuan per kilowatt hour, it can save 4000 yuan in electricity bills per day, and up to 1.2 million yuan in electricity bills per year (calculated based on 300 working days). This is a considerable cost saving for enterprises, which helps to improve their market competitiveness. ?

增加額外收入?

Increase additional income

除了滿足企業(yè)自身用電需求外，光伏發(fā)電系統(tǒng)產(chǎn)生的余電還可以上網(wǎng)銷售給電網(wǎng)公司。目前，許多地區(qū)都出臺(tái)了鼓勵(lì)分布式光伏發(fā)電的政策，對(duì)余電上網(wǎng)給予一定的補(bǔ)貼。例如，在某些地區(qū)，余電上網(wǎng)電價(jià)加上補(bǔ)貼可達(dá)到每度 1.2 元左右。假設(shè)上述企業(yè)每天有 1,000 度余電上網(wǎng)，每天即可獲得額外收入 1,200 元，一年下來可增加收入 36 萬元。這種余電上網(wǎng)的模式，為企業(yè)開辟了新的收入來源，進(jìn)一步提升了光伏發(fā)電項(xiàng)目的經(jīng)濟(jì)效益。?

In addition to meeting the electricity needs of enterprises themselves, the surplus electricity generated by photovoltaic power generation systems can also be sold online to power grid companies. At present, many regions have introduced policies to encourage distributed photovoltaic power generation and provide certain subsidies for surplus electricity to be connected to the grid. For example, in some regions, the electricity price for surplus electricity can reach around 1.2 yuan per kilowatt hour, plus subsidies. Assuming that the above-mentioned enterprises have over 1000 kilowatt hours of electricity connected to the internet every day, they can earn an additional income of 1200 yuan per day, which can increase their income by 360000 yuan over the course of one year. This surplus electricity grid connection model has opened up new sources of income for enterprises and further enhanced the economic benefits of photovoltaic power generation projects. ?

環(huán)保效益顯著?

Significant environmental benefits

廠房屋頂光伏發(fā)電是一種清潔能源生產(chǎn)方式，在發(fā)電過程中不產(chǎn)生溫室氣體排放，也不會(huì)產(chǎn)生廢氣、廢水和廢渣等污染物。相比傳統(tǒng)的火力發(fā)電，每發(fā)一度電，光伏發(fā)電可減少約 0.8 千克二氧化碳排放。以每年發(fā)電 120 萬度計(jì)算，該企業(yè)的光伏發(fā)電系統(tǒng)每年可減少二氧化碳排放約 960 噸，這對(duì)于緩解全球氣候變化、改善當(dāng)?shù)乜諝赓|(zhì)量具有積極意義。同時(shí)，企業(yè)積極采用清潔能源，展示了其對(duì)環(huán)境保護(hù)的責(zé)任擔(dān)當(dāng)，有助于提升企業(yè)的社會(huì)形象。

Photovoltaic power generation on the roof of a factory building is a clean energy production method that does not produce greenhouse gas emissions or pollutants such as exhaust gas, wastewater, and waste residue during the power generation process. Compared to traditional thermal power generation, photovoltaic power generation can reduce carbon dioxide emissions by about 0.8 kilograms per kilowatt hour of electricity generated. Based on an annual power generation of 1.2 million kWh, the company's photovoltaic power generation system can reduce carbon dioxide emissions by approximately 960 tons per year, which has a positive impact on mitigating global climate change and improving local air quality. At the same time, the active adoption of clean energy by enterprises demonstrates their responsibility for environmental protection and helps enhance their social image.

本文由廠房屋頂光伏發(fā)電友情奉獻(xiàn).更多有關(guān)的知識(shí)請(qǐng)點(diǎn)擊:http://51lib.com.cn真誠的態(tài)度.為您提供為全面的服務(wù).更多有關(guān)的知識(shí)我們將會(huì)陸續(xù)向大家奉獻(xiàn).敬請(qǐng)期待.

This article is a friendly contribution from the rooftop photovoltaic power generation of the factory building For more information, please click on: Sincere Attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.