小伙伴们，还记得造福万家的太阳能热水器吗？合理利用太阳能，节省了多少烧热水的电费，现在屋顶不仅能装太阳能热水器，还可以装分布式屋顶光伏电站了。
屋顶光伏发电是一种新型的、具有广阔发展前景的发电和能源综合利用方式，它倡导因地制宜、清洁高效、分散布局、就近利用的原则，利用闲置屋顶，建设光伏电站，就近发电，所发电力可供企业自身使用，大幅降低企业用电成本。
其实只要你的企业屋顶有足够大面积，屋顶承重强、附近遮挡少，企业本身用电量大、电费高的话，就特别适合安装屋顶光伏电站。
目前光伏商业模式
一 自投自建
自投自建是指企业出钱自己建设一个光伏电站，光伏电站归企业自己所有，电站所发电量供企业自己使用，多余电量可上传到国家电网按照上网电价进行结算获得收益。通过专业人员测算，根据屋顶面积、用电量，安装最适合企业自身情况大小的光伏电站，如果光伏电站所发电量刚好够企业使用，那么就不用交电费了，对于用电大户的企业来说，每年可节约不少电费！
光伏电站建设周期短，安装以后可正常使用25年左右，投资回本周期在3-5年，回本之后对企业来说相当于免费用电了！
二 第三方投资建设
很多企业的流动资金不多，不能一次性拿出建设光伏电站的所有费用，那么可以选择第三方投资的方式来安装电站，企业使用光伏电站发的电，电费可以享受折扣，这种方式不需要企业花一分钱，既能享受电费优惠，又不用动用大量流动资金，可谓是一举两得。
接下来，我们具体来分析屋顶光伏电站对于我们工商业企业有哪些好处！
盘活闲置屋顶，美化厂房外观
一些生产经营性公司房顶少则好几千平多则几万平，在工业房顶安裝光伏电站后，厂房的屋顶作为企业闲散资源可以得到充分利用，将建筑学与光伏技术
完美结合起来，使整个屋顶更加美观大方。
保护厂房屋顶，改善工作环境
光伏板具备隔热保温作用，在房顶上大规模铺装光伏部件之后，可以延缓屋顶彩钢瓦的老化速度，并且还可以在夏季降低室内的温度（约5°左右），能合理减少工业厂房温度，在炎炎夏日造就更为舒服的办公环境，也间接性节约了公司的空调费用。
降低用电成本，余电上网销售创收
大部分企业接入的都是工业用电
，电改后电价市场化，电费价格升高，公司耗电量大，用电成本急剧上升。安裝光伏电站后，公司能够自发自用，余电上网。光伏发电不但满足了公司本身的用电需求，附加的发电量还能够为公司创造新的盈利。
独立自主发电，摆脱限电限产限制
去年全国各地出现了不同程度的限电限产政策，安装屋顶光伏后，电站可脱离电网独立工作，不受国家“双控”影响，不停产，不限产。
零排放无污染，完成节能减排指标
为了实现碳中和碳达峰的目标，国家现在对企业，尤其是高耗能、高污染的工业企业，实行碳排放指标管理，而光伏能源
本身属于可再生清洁能源，几乎零排放、零污染，工商业光伏电站能够减少公司的耗能，响应政府部门要求的节能降耗号召，还可以将多余的碳排放指标进行交易。
去年国家能源局正式下发《关于报送整县（市、区）屋顶分布式光伏开始试点方案的通知》红头文件。 通知指出，党政机 关建筑屋顶总面积可安装光伏发电比例不低于50%；
学校、医院、村 委会等公共建筑屋顶总面积可安装光伏发电比例不低于40%； 工商业、
厂房屋顶总面积可安装光伏发电比例不低于30%； 农村居民屋顶总面积可安装光伏发电比例不低于20%。
光伏发电，往大了说，清洁低碳，符合“双碳”目标要求；往小了说，合理利用公司闲置厂房屋顶，还能让公司得到实实在在的收益。
现实案例分享
盐城某家汽车部件有限公司身为最早是东风悦达起亚的一级配套商，光伏项目实施后，预计可通过屋顶分布式光伏实现年度发电总量1兆瓦，每年约节省电费15万元。
屋顶光伏电站既为公司节约电力工程开支，又能改进屋顶的隔热保温情况，让工业厂房更为环保节能，进而为公司产生长期性平稳的现金流。各大企业都在安装工商业光伏电站，而且各地政府都在积极推广，作为工商企业主的您还不打算加入光伏大军行列吗？
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
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