Zero-Carbon Park New Trend: Why is Integrated Photovoltaic Storage and Charging (PVSC) the Key? Project Solutions + Case Studies + Construction Guide

Shanghai Songjiang's first integrated photovoltaic storage and charging (PVSC) zero-carbon park has been successfully launched! This not only provides a reference solution for the energy supply of other parks but also plays a demonstrative role in promoting the development and application of PVSC technology. This project, as a typical PVSC integration scenario, will focus on the pain points of energy storage investment returns and promote the development of various profitable models such as peak-valley arbitrage and demand response.

Why do zero-carbon parks urgently need PVSC projects? How to calculate the return after completion? Are there any specific project plans for reference? This article will answer the above questions and share a "practical tool for the entire process of PVSC project construction," including project design, technology selection, practical standards, and return calculation, and other 14 valuable resources, to facilitate everyone's direct reference and use during project development.

Let me introduce this guide:

01

PVSC Project Construction Guide

 

Recommended Resource 1:《Integrated Energy System Solution and Typical Cases of Industrial Parks Based on Wind, Photovoltaic, Storage, and Charging》PPT

The PPT, from the State Grid, introduces an integrated energy system solution for industrial parks based on wind, photovoltaic, storage, and charging, including five parts: system construction, collaborative optimization, safety protection, operation and maintenance, and typical cases.

                           

The main contents are as follows: (1) In terms of system construction, it proposes construction principles, analyzes load characteristics, designs the power and capacity ratio of source-storage-load, and introduces lithium iron phosphate energy storage systems and cascade utilization energy storage systems. (2) The collaborative optimization part elaborates on source-storage-load coordinated operation technology and power factor regulation technology. (3) The safety protection part details the safety design of the energy storage system and photovoltaic system. (4) The operation and maintenance part proposes methods for remote monitoring and data analysis. (5) Finally, it provides the scale, operating income, and experience that can be learned from typical cases. Recommended Resource 2:《PVSC Investment Budget Analysis Table》 This is an investment budget analysis tool for photovoltaic power generation, energy storage, and charging pile projects. It lists in detail the various equipment, materials, and related costs required for the project, aiming to help investors or enterprises comprehensively understand the investment cost of the project.

Formulas are embedded in the table. You only need to fill in the corresponding data to automatically obtain the results. The calculation table has four major functions:
 

1. Through the analysis table, investors or enterprises can fully understand the investment cost of the project and provide important basis for project initiation, financing, and Bidding decisions. 2. By comparing the Price and performance of different equipment and materials, selecting cost-effective products, thereby effectively controlling project costs. 3. It helps investors identify potential risks in the project, such as equipment Price fluctuations and supply cycles, providing a basis for risk response. 4. According to the budget analysis table, investors can reasonably arrange funds and human resources to ensure the smooth progress of the project. The following is a catalog of 14 documents. Friends who need them can contact the platform contact person:
 

 

 

02

Why do zero-carbon parks urgently need PVSC projects?

 

 

PVSC projects play a crucial role in the construction of zero-carbon parks. It can not only meet the park's energy needs and ensure a stable power supply but also bring economic benefits.

1. From a technical perspective, PVSC technology can achieve the utilization of green energy.

Through the photovoltaic power generation system, solar energy is converted into electricity, which helps reduce carbon emissions and supports environmentally friendly and sustainable development. At the same time, the introduction of energy storage equipment solves the problem of energy storage and allocation, making energy use in the park more flexible and efficient.

Through the collaborative work of PVSC, the volatility of new energy power generation and the demand for park power load can be effectively balanced, ensuring a stable power supply. There is no need to worry about energy shortages or insufficient power distribution, ensuring the normal production and electricity needs of the park.

2. From an economic perspective, PVSC projects help parks achieve diversified profit models.

Through the peak-valley arbitrage model, it brings substantial economic returns to the park. During peak hours of electricity demand, the park can use the electricity in the energy storage equipment for power supply, effectively avoiding the cost pressure brought by peak electricity Prices and reducing operating costs. During off-peak hours of electricity demand, the park can use the excess electricity generated by the photovoltaic power generation system for charging and store it for use during peak hours.

By participating in demand response, it further broadens the park's profit channels. Demand response is a mechanism that adjusts electricity consumption patterns to respond to changes in electricity market demand. Through the PVSC integrated system, the park can grasp the electricity supply and demand situation in real time and adjust its electricity consumption strategy according to market demand. This ability to flexibly respond to market demand gives the park stronger competitiveness in the electricity market, thus gaining more profit opportunities.

Next, let's analyze in detail how to calculate the income after the park builds a PVSC project.

03

How to Calculate Project Returns

 

 

The return calculation method for PVSC projects in zero-carbon park construction is mainly based on several factors, including project investment costs, energy output, electricity sales revenue, subsidy income, and operating costs.

Determine Investment Costs: Photovoltaic power generation system investment cost, energy storage system investment cost, charging facility investment cost, installation and other related costs;

Predict Energy Output: Based on the capacity and efficiency of the photovoltaic power generation system, predict the annual power generation; based on the capacity and efficiency of the energy storage system, predict the annual energy storage electricity; based on the capacity and usage of the charging facilities, predict the annual charging amount;

Calculate Electricity Sales Revenue: Based on the predicted power generation, combined with the local electricity Price, calculate the electricity sales revenue;

Consider Subsidy Income: Based on relevant government policies, calculate the amount of subsidies that may be obtained;

Calculate Operating Costs: Consider equipment maintenance, personnel wages, electricity costs, and other operating costs;

Calculate Net Income: Electricity sales revenue + Subsidy income - Investment cost - Operating cost = Net income;

This calculation formula is very simplified, and the actual situation will be more complex. In actual operation, factors to be considered include the actual operating efficiency of the equipment, changes in electricity Prices, changes in subsidy policies, equipment replacement and maintenance costs, loan interest, inflation rate, tax impact, etc. When calculating the income of PVSC projects, professional financial models are usually needed for detailed calculations.

I have prepared a... Photovoltaic + Energy Storage + Charging Pile Revenue Calculation Excel Table This Excel spreadsheet can be used to calculate the revenue of photovoltaic, energy storage, and charging projects. It includes a basic data table, an IRR model table, and an energy storage sensitivity analysis table. Formulas are embedded, and results are automatically generated by simply entering the corresponding data. You can scan the code to download it.

 

04

Park Construction Photovoltaic, Energy Storage, and Charging Project Case

 

Next, let's look at a case study of Hangzhou's first "zero-carbon park" photovoltaic, energy storage, charging, and discharging demonstration project.

The "zero-carbon park" photovoltaic, energy storage, charging, and discharging demonstration project is located at No. 2 Zhongtan Road, Xiaya Town. The project integrates four functions: photovoltaics, energy storage, charging, and discharging. It uses a smart energy management system to intelligently integrate, allocate, and manage the power consumption of the park and charging station, ultimately achieving zero-carbon emissions for park power consumption.

The project is equipped with 0.5715MW of photovoltaic power (including 0.5071MW of photovoltaic power on the park roof and 0.0644MW of photovoltaic power on the charging station carport), 100kw/232kwh of energy storage, 960kw of charging power (11 fast charging piles and 1 ultra-fast charging pile), and 1 V2G device.

1. In terms of energy consumption costs

The park's photovoltaic system can generate 540,000 kwh of solar green electricity annually, saving the park over 400,000 yuan in electricity costs per year. At the same time, the 232kwh energy storage device, through peak-valley arbitrage and demand response energy scheduling management, can reduce the park's electricity costs by about 80,000 yuan per year. After the demonstration park goes online, it can reduce electricity costs by over 80% annually.

2. In terms of green electricity usage

With 3600 square meters of roof area, the park's rooftop photovoltaic system can generate an average of 540,000 kwh of green electricity per year, reducing carbon dioxide emissions by 309 tons. 60% of the park's electricity consumption comes directly from photovoltaics and energy storage. The remaining 40% of the electricity, based on intelligent Internet of Things optimization, will be managed through a cooperation model of "selling excess electricity to the grid or transmitting it to the charging station when production exceeds demand, and retrieving it from the grid when needed," realizing a 100% zero-carbon electricity energy supply.

3. In terms of charging services

The demonstration park can provide fast charging services to 20,000 new energy vehicle owners annually, supporting the electrification of Jiande City's transportation. The newly added Jiande City's "first liquid-cooled ultra-fast charging pile" in the demonstration park has a maximum charging power of 480kW, enabling a 500km range with just 10 minutes of charging - enough time to enjoy a coffee.

4. In terms of investment benefits

The park adopts a full investment model by Jiande Economic Development Zone, with an investment scale of approximately 4 million yuan. Comprehensive investment returns are achieved through energy saving and cost reduction for the park, providing charging services to new energy vehicle owners, trading surplus green electricity, and participating in the State Grid's demand response, with an investment payback period of about 5-6 years. Compared with traditional single-equipment investment, it has high investment efficiency and strong service capabilities.

5. In terms of energy management and scheduling

Through the flexible energy control strategy of Jiande Economic Development Zone's "Yiqichong" smart energy operation and management platform, the energy system composed of photovoltaic systems, energy storage systems, charging piles, and the power grid can be managed and scheduled in an orderly manner. Photovoltaic systems generate power for self-use, prioritizing the park's electricity consumption or electric vehicle charging. Surplus electricity is used for energy time shifting or grid connection with the help of energy storage. The energy storage system defaults to peak-valley arbitrage mode and assists in the local consumption of photovoltaic green electricity, helping to build a new city landmark and accelerate the achievement of the city's "dual-carbon" goals.

05

Conclusion

 

As one of the core technologies of zero-carbon parks, the integrated photovoltaic, energy storage, and charging system achieves clean and efficient energy utilization, providing the park with a stable and reliable power supply while reducing operating costs and improving economic efficiency.

In this article, we discussed why zero-carbon parks urgently need integrated photovoltaic, energy storage, and charging systems, and analyzed the project revenue calculation methods and practical cases. We hope to help everyone comprehensively understand the important role of photovoltaic, energy storage, and charging systems in the construction of zero-carbon parks, and how to achieve the long-term stable development of projects through reasonable revenue calculation and planning. We recommend downloading the "Photovoltaic, Energy Storage, and Charging Project Construction Guide" for convenient reference and use during project development.