在“双碳”目标驱动下，工商业光伏发电已成为企业降本增效、绿色转型的重要路径。其合作模式呈现多元化特征，企业可根据自身资源禀赋、用电特性及投资偏好，选择最适宜的参与方式。

　　Driven by the "dual carbon" goal, commercial and industrial photovoltaic power generation has become an important path for enterprises to reduce costs, increase efficiency, and undergo green transformation. Its cooperation mode presents diversified characteristics, and enterprises can choose the most suitable participation method based on their own resource endowment, electricity consumption characteristics, and investment preferences.

　　一、自发自用+余电上网模式

　　1、 Spontaneous self use+surplus electricity grid connection mode

　　该模式由企业自主投资建设光伏电站，所发电量优先供自身生产使用，多余电量并入电网获取收益。某制造业企业案例显示，其屋顶光伏年发电量中，75%用于冲抵生产用电，剩余25%通过“全额上网”获得电价收入。此模式核心优势在于：

　　This model involves the independent investment and construction of photovoltaic power stations by enterprises, with the generated electricity being prioritized for their own production and use, and excess electricity being incorporated into the power grid to generate revenue. A case study of a manufacturing enterprise shows that 75% of its annual rooftop photovoltaic power generation is used to offset production electricity, while the remaining 25% earns electricity price income through "full grid connection". The core advantages of this model are:

　　用电成本直降：光伏发电成本普遍低于工商业峰谷电价，某园区企业测算表明，自发自用比例每提升10%，综合电价下降。

　　Direct reduction in electricity costs: The cost of photovoltaic power generation is generally lower than the peak and valley electricity prices of industry and commerce. According to calculations by a certain park enterprise, for every 10% increase in the proportion of self use, the comprehensive electricity price decreases.

　　碳资产管理价值：通过绿证交易及碳减排量核证，企业可额外获得环境权益收益。某出口型企业通过CCER项目年增收。

　　Carbon asset management value: Through green certificate trading and carbon emission reduction verification, enterprises can obtain additional environmental equity benefits. A certain export-oriented enterprise has increased its annual revenue through the CCER project.

　　二、合同能源管理模式（EMC）

　　2、 Contract Energy Management Model (EMC)

　　能源服务公司（ESCO）与企业签订节能服务合同，全额投资建设光伏电站，双方按约定比例分享节能收益。典型合作周期为15-25年，期满后电站无偿移交企业。某物流园区项目数据显示，ESCO通过电价折扣模式收取服务费，企业实际用电成本降低。此模式特点为：

　　Energy service companies (ESCOs) sign energy-saving service contracts with enterprises, fully invest in the construction of photovoltaic power plants, and both parties share energy-saving benefits according to the agreed proportion. The typical cooperation period is 15-25 years, after which the power station will be transferred to the enterprise free of charge. Data from a logistics park project shows that ESCO charges service fees through electricity price discount models, resulting in a reduction in the actual electricity costs of the enterprise. The characteristics of this mode are:

　　零投资启动：企业无需承担初期建设成本，适合资本预算紧张的企业。

　　Zero investment start-up: Enterprises do not need to bear initial construction costs, suitable for enterprises with tight capital budgets.

　　专业运维保障：ESCO负责全生命周期运维，某第三方机构监测表明，专业运维使系统效率提升。

　　Professional operation and maintenance guarantee: ESCO is responsible for the entire lifecycle operation and maintenance. Monitoring by a third-party organization shows that professional operation and maintenance improve system efficiency.

　　三、融资租赁+经营性租赁模式

　　3、 Financial leasing+operating leasing model

　　通过金融工具降低企业投资门槛，常见方式包括：

　　Common ways to lower the investment threshold for enterprises through financial instruments include:

　　直接租赁：企业选定设备后，租赁公司采购并出租，企业分期支付租金，期末获得设备所有权。某食品加工企业采用该模式，初始投资仅占项目总投资的。

　　Direct leasing: After the enterprise selects the equipment, the leasing company purchases and leases it, and the enterprise pays the rent in installments, obtaining ownership of the equipment at the end of the period. A certain food processing enterprise adopts this model, and the initial investment only accounts for a proportion of the total project investment.

　　经营性租赁：企业按使用电量支付租金，租赁公司享有设备所有权及补贴收益。某商业综合体案例显示，该模式使企业资产负债率降低。

　　Operating leasing: Enterprises pay rent based on electricity usage, and leasing companies enjoy ownership of equipment and subsidy income. A case study of a commercial complex shows that this model reduces the asset liability ratio of the enterprise.

　　四、隔墙售电+虚拟电厂模式

　　4、 Wall mounted electricity sales+virtual power plant mode

　　在分布式发电市场化交易试点区域，企业可通过“隔墙售电”将电量直接售给周边用户，或参与虚拟电厂聚合交易。某工业园区实践表明，点对点交易电价较标杆电价上浮，显著提升项目收益率。此模式需关注：

　　In the pilot area for market-oriented trading of distributed power generation, enterprises can directly sell electricity to surrounding users through "wall sales" or participate in virtual power plant aggregation trading. Practice in a certain industrial park has shown that peer-to-peer transaction electricity prices are higher than benchmark electricity prices, significantly improving project profitability. This mode requires attention to:

　　输配电价核定：需明确过网费分摊机制，避免交易成本过高。

　　Determination of transmission and distribution electricity prices: It is necessary to clarify the mechanism for sharing network fees to avoid excessive transaction costs.

　　电力市场准入：需符合当地交易规则，某试点省份要求单体项目容量不低于。

　　Electricity market access: It must comply with local trading rules, and a pilot province requires that the capacity of individual projects be no less than.

　　五、产业园区综合能源服务模式

　　5、 Comprehensive energy service model for industrial parks

　　在产业园区层面，通过“光伏+储能+充电桩+智慧能源管理”一体化方案，实现多能互补与需求响应。某高新区示范项目数据显示，通过峰谷套利及需求侧响应，综合能效提升。此模式关键要素包括：

　　At the level of industrial parks, the integrated solution of "photovoltaic+energy storage+charging piles+smart energy management" is used to achieve multi energy complementarity and demand response. Data from a demonstration project in a certain high-tech zone shows that comprehensive energy efficiency has been improved through peak valley arbitrage and demand side response. The key elements of this model include:

　　微电网建设：构建局域电网实现能源自平衡，某园区微电网使光伏消纳率提升。

　　Microgrid construction: Building a local power grid to achieve energy self balance, and a microgrid in a certain park to increase the photovoltaic consumption rate.

　　碳足迹追溯系统：通过区块链技术记录全生命周期碳数据，助力企业绿色认证。

　　Carbon Footprint Traceability System: Using blockchain technology to record carbon data throughout the entire lifecycle, helping enterprises achieve green certification.

　　模式选择的核心考量

　　Core considerations for mode selection

　　企业决策需综合评估：

　　Enterprise decision-making requires comprehensive evaluation:

　　用电负荷特性：连续型负荷（如24小时生产）适宜高自发自用比例，间歇型负荷需配套储能。

　　Power load characteristics: Continuous loads (such as 24-hour production) are suitable for high spontaneous self use ratios, while intermittent loads require energy storage.

　　屋顶资源条件：彩钢瓦屋顶需采用柔性支架，混凝土屋顶适合BIPV/BAPV方案。

　　Roof resource conditions: Color steel tile roofs require flexible supports, while concrete roofs are suitable for BIPV/BAPV schemes.

　　政策合规性：需核查建筑荷载、消防规范及电力接入要求，某企业因未办理并网手续导致项目延期。

　　Policy compliance: It is necessary to verify the building load, fire safety regulations, and power access requirements. A certain enterprise caused a project delay due to failure to complete grid connection procedures.

　　工商业光伏发电合作模式正从单一投资向综合能源服务演进，企业需结合战略定位、财务状况及能源需求，选择最优化方案。随着电力市场化改革深化及绿色金融创新，光伏发电将深度融入企业ESG体系，成为实现碳中和目标的核心抓手。

　　The cooperation mode of industrial and commercial photovoltaic power generation is evolving from single investment to comprehensive energy services. Enterprises need to choose the optimal solution based on their strategic positioning, financial situation, and energy demand. With the deepening of electricity marketization reform and innovation in green finance, photovoltaic power generation will be deeply integrated into the corporate ESG system, becoming the core lever for achieving carbon neutrality goals.

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