小伙伴們，還記得造福萬家的太陽能熱水器嗎？合理利用太陽能，節(jié)省了多少燒熱水的電費(fèi)，現(xiàn)在屋頂不僅能裝太陽能熱水器，還可以裝分布式屋頂光伏電站了。

屋頂光伏發(fā)電是一種新型的、具有廣闊發(fā)展前景的發(fā)電和能源綜合利用方式，它倡導(dǎo)因地制宜、清潔高效、分散布局、就近利用的原則，利用閑置屋頂，建設(shè)光伏電站，就近發(fā)電，所發(fā)電力可供企業(yè)自身使用，大幅降低企業(yè)用電成本。

其實(shí)只要你的企業(yè)屋頂有足夠大面積，屋頂承重強(qiáng)、附近遮擋少，企業(yè)本身用電量大、電費(fèi)高的話，就特別適合安裝屋頂光伏電站。

目前光伏商業(yè)模式

一 自投自建

自投自建是指企業(yè)出錢自己建設(shè)一個(gè)光伏電站，光伏電站歸企業(yè)自己所有，電站所發(fā)電量供企業(yè)自己使用，多余電量可上傳到國家電網(wǎng)按照上網(wǎng)電價(jià)進(jìn)行結(jié)算獲得收益。通過專業(yè)人員測算，根據(jù)屋頂面積、用電量，安裝最適合企業(yè)自身情況大小的光伏電站，如果光伏電站所發(fā)電量剛好夠企業(yè)使用，那么就不用交電費(fèi)了，對于用電大戶的企業(yè)來說，每年可節(jié)約不少電費(fèi)！

光伏電站建設(shè)周期短，安裝以后可正常使用25年左右，投資回本周期在3-5年，回本之后對企業(yè)來說相當(dāng)于免費(fèi)用電了！

二  第三方投資建設(shè)

很多企業(yè)的流動資金不多，不能一次性拿出建設(shè)光伏電站的所有費(fèi)用，那么可以選擇第三方投資的方式來安裝電站，企業(yè)使用光伏電站發(fā)的電，電費(fèi)可以享受折扣，這種方式不需要企業(yè)花一分錢，既能享受電費(fèi)優(yōu)惠，又不用動用大量流動資金，可謂是一舉兩得。

接下來，我們具體來分析屋頂光伏電站對于我們工商業(yè)企業(yè)有哪些好處！

盤活閑置屋頂，美化廠房外觀

一些生產(chǎn)經(jīng)營性公司房頂少則好幾千平多則幾萬平，在工業(yè)房頂安裝光伏電站后，廠房的屋頂作為企業(yè)閑散資源可以得到充分利用，將建筑學(xué)與光伏技術(shù) 完美結(jié)合起來，使整個(gè)屋頂更加美觀大方。

保護(hù)廠房屋頂，改善工作環(huán)境

光伏板具備隔熱保溫作用，在房頂上大規(guī)模鋪裝光伏部件之后，可以延緩屋頂彩鋼瓦的老化速度，并且還可以在夏季降低室內(nèi)的溫度（約5°左右），能合理減少工業(yè)廠房溫度，在炎炎夏日造就更為舒服的辦公環(huán)境，也間接性節(jié)約了公司的空調(diào)費(fèi)用。

降低用電成本，余電上網(wǎng)銷售創(chuàng)收

大部分企業(yè)接入的都是工業(yè)用電 ，電改后電價(jià)市場化，電費(fèi)價(jià)格升高，公司耗電量大，用電成本急劇上升。安裝光伏電站后，公司能夠自發(fā)自用，余電上網(wǎng)。光伏發(fā)電不但滿足了公司本身的用電需求，附加的發(fā)電量還能夠?yàn)楣緞?chuàng)造新的盈利。

獨(dú)立自主發(fā)電，擺脫限電限產(chǎn)限制

去年全國各地出現(xiàn)了不同程度的限電限產(chǎn)政策，安裝屋頂光伏后，電站可脫離電網(wǎng)獨(dú)立工作，不受國家“雙控”影響，不停產(chǎn)，不限產(chǎn)。

零排放無污染，完成節(jié)能減排指標(biāo)

為了實(shí)現(xiàn)碳中和碳達(dá)峰的目標(biāo)，國家現(xiàn)在對企業(yè)，尤其是高耗能、高污染的工業(yè)企業(yè)，實(shí)行碳排放指標(biāo)管理，而光伏能源 本身屬于可再生清潔能源，幾乎零排放、零污染，工商業(yè)光伏電站能夠減少公司的耗能，響應(yīng)政府部門要求的節(jié)能降耗號召，還可以將多余的碳排放指標(biāo)進(jìn)行交易。

去年國家能源局正式下發(fā)《關(guān)于報(bào)送整縣（市、區(qū)）屋頂分布式光伏開始試點(diǎn)方案的通知》紅頭文件。 通知指出，黨政機(jī) 關(guān)建筑屋頂總面積可安裝光伏發(fā)電比例不低于50%； 學(xué)校、醫(yī)院、村 委會等公共建筑屋頂總面積可安裝光伏發(fā)電比例不低于40%； 工商業(yè)、 廠房屋頂總面積可安裝光伏發(fā)電比例不低于30%； 農(nóng)村居民屋頂總面積可安裝光伏發(fā)電比例不低于20%。

   

光伏發(fā)電，往大了說，清潔低碳，符合“雙碳”目標(biāo)要求；往小了說，合理利用公司閑置廠房屋頂，還能讓公司得到實(shí)實(shí)在在的收益。

現(xiàn)實(shí)案例分享

鹽城某家汽車部件有限公司身為最早是東風(fēng)悅達(dá)起亞的一級配套商，光伏項(xiàng)目實(shí)施后，預(yù)計(jì)可通過屋頂分布式光伏實(shí)現(xiàn)年度發(fā)電總量1兆瓦，每年約節(jié)省電費(fèi)15萬元。

屋頂光伏電站既為公司節(jié)約電力工程開支，又能改進(jìn)屋頂?shù)母魺岜厍闆r，讓工業(yè)廠房更為環(huán)保節(jié)能，進(jìn)而為公司產(chǎn)生長期性平穩(wěn)的現(xiàn)金流。各大企業(yè)都在安裝工商業(yè)光伏電站，而且各地政府都在積極推廣，作為工商企業(yè)主的您還不打算加入光伏大軍行列嗎？

Friends, do you remember the solar water heater that benefits Wanjia? Rational use of solar energy, how much electricity costs for hot water are saved, and now the roof can not only install solar water heaters, but also distributed rooftop photovoltaic power stations.

Rooftop photovoltaic power generation is a new type of power generation and energy comprehensive utilization with broad development prospects, which advocates the principle of local conditions, clean and efficient, decentralized layout, and nearby utilization, using idle roofs, building photovoltaic power stations, generating electricity nearby, and the power generated can be used by enterprises themselves, greatly reducing the cost of electricity for enterprises.

In fact, as long as your enterprise roof has a large enough area, the roof has strong load-bearing, less nearby shading, and the enterprise itself has large electricity consumption and high electricity costs, it is especially suitable for installing rooftop photovoltaic power plants.

Current photovoltaic business model

1. Self-investment and self-construction

Self-investment and self-construction means that the enterprise pays to build a photovoltaic power station, the photovoltaic power station is owned by the enterprise itself, the power generated by the power station is used by the enterprise itself, and the excess electricity can be uploaded to the national grid to settle according to the on-grid tariff to obtain benefits. Through professional calculations, according to the roof area, electricity consumption, install the most suitable size of the photovoltaic power station for the size of the enterprise itself, if the photovoltaic power station power generation is just enough for the enterprise to use, then there is no need to pay electricity bills, for large electricity users of enterprises, can save a lot of electricity costs every year! The construction period of photovoltaic power station is short, and it can be used normally for about 25 years after installation, and the investment payback cycle is 3-5 years, which is equivalent to free electricity for enterprises after returning the cost!

2. Third-party investment and construction

Many enterprises do not have much working capital, can not take out all the costs of building photovoltaic power plants at one time, then you can choose a third-party investment method to install the power station, enterprises use photovoltaic power plants to generate electricity, electricity bills can enjoy discounts, this way does not need to spend a penny of enterprises, can enjoy electricity fee discounts, but also do not need to use a large amount of working capital, can be described as killing two birds with one stone.

Next, let's analyze specifically what are the benefits of rooftop photovoltaic power plants for our industrial and commercial enterprises!

Revitalize the idle roof and beautify the appearance of the plant

Some production and operation companies have a few thousand square meters or more tens of thousands of square meters, after installing photovoltaic power stations on the industrial roof, the roof of the plant can be fully utilized as an idle resource of the enterprise, and the perfect combination of architecture and photovoltaic technology makes the entire roof more beautiful and generous.

Protect plant roofs and improve working environment

Photovoltaic panels have the effect of thermal insulation, after large-scale paving of photovoltaic components on the roof, it can delay the aging rate of roof color steel tiles, and can also reduce the indoor temperature (about 5 °) in summer, which can reasonably reduce the temperature of industrial plants, create a more comfortable office environment in the hot summer, and indirectly save the company's air conditioning costs.
Reduce the cost of electricity, and generate income from surplus electricity sales

Most enterprises are connected to industrial electricity, and after the electricity reform, the electricity price is marketized, the price of electricity is rising, the company's power consumption is large, and the cost of electricity has risen sharply. After installing the photovoltaic power station, the company can use itself spontaneously, and the surplus electricity is on the Internet. Photovoltaic power generation not only meets the company's own electricity demand, but also creates new profits for the company.

Independent power generation, free from power and production restrictions

Last year, there were different degrees of power rationing and production restrictions across the country, and after the installation of rooftop photovoltaics, the power station can work independently from the power grid, not affected by the national "dual control", and does not stop production and does not limit production.

Zero emission and no pollution, complete energy conservation and emission reduction targets

In order to achieve the goal of carbon neutrality and carbon peaking, the state now implements carbon emission index management for enterprises, especially high-energy-consuming, high-pollution industrial enterprises, and photovoltaic energy itself belongs to renewable clean energy, almost zero emissions, zero pollution, industrial and commercial photovoltaic power plants can reduce the company's energy consumption, respond to the call for energy conservation and consumption reduction required by government departments, and can also trade excess carbon emission indicators. Zero emission and no pollution, complete energy conservation and emission reduction targets

In order to achieve the goal of carbon neutrality and carbon peaking, the state now implements carbon emission index management for enterprises, especially high-energy-consuming, high-pollution industrial enterprises, and photovoltaic energy itself belongs to renewable clean energy, almost zero emissions, zero pollution, industrial and commercial photovoltaic power plants can reduce the company's energy consumption, respond to the call for energy conservation and consumption reduction required by government departments, and can also trade excess carbon emission indicators. Last year, the National Energy Administration officially issued the "Notice on Submitting the Pilot Plan for Rooftop Distributed Photovoltaic in the Whole County (City, District)" red-headed document. The notice pointed out that the total roof area of party and government organs can install photovoltaic power generation ratio of not less than 50%; The total roof area of public buildings such as schools, hospitals, and village committees can be installed with photovoltaic power generation ratio of not less than 40%; The proportion of photovoltaic power generation that can be installed in the total area of industry and commerce and plant buildings is not less than 30%; The total roof area of rural residents can be installed with photovoltaic power generation ratio of not less than 20%. Photovoltaic power generation, to a large extent, is clean and low-carbon, in line with the requirements of the "dual carbon" goal; To a small extent, the rational use of the company's idle factory roof can also allow the company to get real benefits.

Real-world case sharing