Joinsun can provide professional one-stop PV solutions with Tier 1 photovolatic industry products .

Optimizing energy usage and reducing reliance on grid power during high-cost periods, our systems provide measurable financial benefits.

Advanced analytics and automation ensure every kilowatt-hour is used cost-effectively, driving down your energy bill.

For manufacturing enterprises with intensive electricity consumption and high electricity cost ratios, such as automobile production and heavy industry processing, solar PV plants are a key solution to balance “production continuity” and “cost controllability”. The core pain points of such enterprises lie in “high external electricity purchase costs caused by 24/7 production line operation, and the need to meet industry environmental standards to avoid compliance risks”. Targeting this scenario, Joinsun conducts in-depth analysis of enterprises’ electricity consumption peak-valley patterns, factory rooftop resources and local solar radiation data from the early free consultation stage, and customizes distributed solar PV systems with the mode of “self-generation for self-use and surplus electricity fed into the grid”. For example, a 1MW solar PV plant was designed for an automobile manufacturer: during the daytime production peak, PV power is directly supplied to high-energy-consuming workshops such as stamping and assembly workshops, reducing the high costs of purchasing electricity from the grid; during nighttime or off-peak electricity consumption periods, surplus electricity is sold to the grid through the “net metering” or “electricity price subsidy” mechanism to create additional revenue. Meanwhile, the energy storage equipment matched with the system can ensure power supply for key production lines in case of grid power outages, avoiding production suspension losses. In terms of actual benefits, such PV plants can generate millions of kilowatt-hours of electricity annually, helping enterprises save hundreds of thousands of US dollars in electricity fees and reduce thousands of tons of CO₂ emissions at the same time. This not only eases the cost pressure of high-energy-consuming enterprises, but also helps them build the label of “green factory” and enhance their competitiveness in the new energy industry chain.

Industrial parks gathering a number of small and medium-sized enterprises often face the dilemma that “individual enterprises have limited rooftop resources and insufficient financial strength to build PV plants independently”, and the overall energy management of the park is decentralized with high operation and maintenance costs. Joinsun has launched a “cluster PV solution” for this scenario: in the early stage, it works with the park management to conduct overall statistics on the total electricity consumption and load characteristics of each enterprise, and plans a centralized PV plant covering the public rooftops and parking lot shed rooftops of the park; in the design stage, it realizes “on-demand power distribution” through intelligent inverters and monitoring systems, taking into account the electricity consumption differences of different enterprises to ensure that each enterprise can enjoy the cost advantages of PV power according to its actual consumption; in the subsequent process, it provides full-process coordination services from the preparation of construction approval materials, connection with professional installation teams to grid connection acceptance, reducing the communication costs between the park and enterprises. In addition, the local server and data collector equipped with the system can monitor the PV power consumption of each enterprise in real time, generate energy consumption analysis reports and help the park optimize the overall energy dispatching. Under this mode, industrial parks do not need to rely on a single grid for power supply, which not only reduces the overall electricity cost, but also attracts more enterprises focusing on sustainable development to settle in through the positioning of “green energy park”, enhancing the investment promotion competitiveness.

Commercial and industrial enterprises with overseas business or export needs are required to cope with international environmental barriers such as the EU Carbon Border Adjustment Mechanism (CBAM). Solar PV plants have become an important tool for them to “break through trade restrictions and enhance brand value”. Targeting the scenario needs of such enterprises, Joinsun integrates the environmental standards of export destinations into the system design stage, provides PV solutions that meet international certification, and issues detailed carbon emission reduction reports as “green certificates” for product export. For example, the PV plant designed for an export-oriented electronic enterprise not only meets the enterprise’s own production electricity demand, but also the annual carbon emission reduction data can be used for the “carbon footprint label” certification of products, helping the enterprise avoid carbon tariff risks in cooperation with European customers and enhance the international competitiveness of products. In addition, the 24/7 technical support provided by Joinsun can cover the operation and maintenance needs of PV plants in enterprises’ overseas factories, and conduct real-time troubleshooting of equipment failures through the remote monitoring system to ensure the stable operation of PV plants and provide reliable energy support for enterprises’ cross-border operations.