Guojian (Tianjin) Steel operates 10 fully automated C-Channel Solar Carport System and independently manufactures the complete set of C-section steel profiles and connection components for photovoltaic vehicle shelters. This one-stop solution addresses common project challenges associated with traditional vehicle shelters in industrial parks and factory areas—such as the absence of revenue generation from electricity sales, susceptibility of steel frames to rusting, lengthy installation periods, poor wind resistance, and water leakage during rainy weather. We employ a hot-dip galvanizing corrosion protection process; our profiles meet national strength standards, and our modular, weld-free structural design significantly reduces construction timelines. With a proprietary spot inventory of 10,000 tons, we can fulfill large-scale procurement orders with rapid delivery. Additionally, we provide complimentary site surveys and customized structural design services. Holding full ISO certifications and a proven track record of commercial and industrial photovoltaic vehicle shelter projects over many years, we offer dual assurance regarding product quality and delivery timelines.
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Current industry pain points |
Guojian Type C Steel Photovoltaic Caravan Shelter – Corresponding Solution |
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Conventional parking shelters only provide shading; they generate no additional revenue for the site and offer low land utilization efficiency. |
Integrated photovoltaic system design – combining parking and power generation – enables idle parking spaces to generate ongoing electricity revenue. |
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Standard steel structure sheds lack any anti-corrosion treatment; when exposed to outdoor elements such as wind and rain, they are highly susceptible to rusting and have a short service life. |
The structure utilizes hot-dip galvanized C-section steel profiles, which are resistant to moisture-induced corrosion; the design service life is ≥25 years. |
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Traditional on-site welding methods for carports involve complex procedures, lengthy construction timelines, and high labor costs. |
Modular solder-free fast-assembly components, standardized profiles, and on-site splicing – significantly shorten construction timelines. |
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The canopy lacks a professional water diversion system, leading to water accumulation and leakage during rainy weather, which can corrode support structures and damage vehicles. |
Integrated waterproof drainage channel + sealing gasket – prevents rainwater infiltration and water-induced corrosion. |
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Conventional steel frame structures have poor load-bearing and wind resistance; during severe storms or snowfall, they are prone to deformation and vibration, posing potential safety hazards. |
High-strength, thickened C-shaped steel structure with optimized mechanical design, capable of withstanding strong wind loads and heavy snow loads. |
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Most suppliers on the market are intermediaries; bulk purchasing is limited, and customization cycles are lengthy. |
Guojian Original Factory operates its own production lines, maintains an in-stock inventory, supports customized parking space dimensions, and offers rapid shipping. |
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The fixed layout of photovoltaic modules makes it difficult to adapt to various parking lot configurations. |
Type C steel guide rails offer high versatility, are compatible with all types of photovoltaic panels, and support flexible adjustment of both horizontal and vertical installation configurations. |
• Dual-purpose vehicle utilization for increased revenue: parking shade systems + photovoltaic power generation –盘活 parking lot space and continuously reduce corporate electricity costs
• Long-lasting corrosion resistance and durability: Manufactured from hot-dip galvanized C-section steel as the primary material, designed to withstand outdoor rainwater corrosion and engineered for 25 years of reliable service.
• Modular rapid installation: Standardized, weld-free components for on-site assembly – reduces project duration and lowers labor costs.
• Waterproof and leak-proof design: Built-in water drainage channel + sealing gasket – prevents water accumulation and leakage from damaging the vehicle or the support frame.
• High resistance to strong winds and heavy snow: The thickened C-section steel load-bearing structure resists deformation or movement even under strong winds or heavy snowfall, ensuring safety and stability.
• High component compatibility: Compatible with various types of photovoltaic panels and supports both horizontal and vertical installation configurations, suitable for diverse installation sites.
• Direct factory supply: Our in-house production lines ensure ample现货 availability, supporting bulk purchasing as well as customized non-standard dimensions.
Cross-scenario adaptability – meeting diverse PV system retrofitting requirements for various parking facilities
Product real-life display
• In-house production lines: 10 fully automated C-section steel profile production lines – enabling direct manufacturing of profiles without intermediaries
• Comprehensive certifications: ISO 9001:2015 Quality Management System Certification, Class 3A Credit Enterprise
• Delivery Guarantee: 10,000-ton spot inventory; bulk procurement with rapid shipping; supports non-standard customization.
• Process advantage: Long-lasting hot-dip galvanizing for corrosion protection; structural strength complies with Chinese national standards.
• Services: Free site survey, solution design, on-site technical guidance, 25-year warranty, 24-hour after-sales support
Case Study 1: North China Manufacturing Industrial Park Photovoltaic Carport Project
Project Overview: North China Large-Scale Equipment Manufacturing Industrial Park – featuring 220 standard passenger car parking spaces and a total installed capacity of 1.2 MW; all C-section steel profiles and connecting accessories for the entire canopy system are supplied directly by Guojian.
The client's existing pain points include: outdoor parking spaces lacking shading facilities; high daytime electricity costs in the workshop; traditional simple steel sheds not being treated for corrosion protection, leading to extensive rusting within three years; and full-welded on-site construction methods, which entail long project timelines and high labor costs.
The national construction support scheme utilizes thickened, high-strength hot-dip galvanized C-section steel as the main beams and purlins, employing an overall modular, weld-free assembly method that eliminates the need for on-site welding; it is complemented by integrated waterproof and water systems combined with sealing gaskets, optimizing the wind-resistant structure to withstand winds up to Category 8; all profiles are prefabricated in the factory and then assembled directly at the construction site, reducing the construction period by 40%.
Project Implementation Outcomes: The shed area has simultaneously implemented vehicle sun protection and photovoltaic power generation systems, generating an average of 1.4 million kWh of electricity per year, which reduced the plant's self-consumption electricity costs by 35%; the hot-dip galvanized profiles have a design service life of 25 years, with no risks of water leakage or corrosion; the project to secure a spot inventory of 10,000 tons was completed on schedule.
Case Study 2: Shandong Logistics & Warehousing – Integrated Storage, Power Generation and Charging Facility for Vehicles
Logistics Park – Solar-Powered Charging and Storage Shed Rendering
Project Overview: Shandong Comprehensive Logistics and Warehousing Base – featuring 160 mixed-use parking spaces for trucks and private vehicles, equipped with DC fast-charging stations (total installed capacity: 1.3 MW), and a custom-built elevated C-shaped steel photovoltaic vehicle canopy.
The client's existing pain points: Heavy-duty logistics trucks require high clearances for passage; the industrial park is located near a coastal area with salt-laden air, which accelerates the corrosion rate of standard steel frames; large-volume profiles are scarce in the market, and the customization lead time can extend up to 30 days.
Customized support system solution: Custom-height columns with large cantilevered C-shaped steel structures designed for the passage of large trucks; Optional high-corrosion-resistant C-shaped steel profiles made of zinc-aluminum-magnesium alloy, engineered to withstand coastal salt-air corrosion; Our own factory maintains an in-stock inventory of standard profiles – orders exceeding 1,000 tons can be scheduled and shipped within 10 days; complimentary load-bearing and mechanical analysis reports provided.
Project Implementation Outcomes: The facility integrates three functions – truck parking, private vehicle charging, and photovoltaic power generation – while supplying electricity to the warehouse workshop and charging stations, resulting in annual electricity cost savings of over RMB 900,000; the use of long-lasting anti-corrosion materials significantly reduces subsequent maintenance and replacement costs.
Case Study 3: Photovoltaic Parking Canopies for Commercial Complex Supermarkets and Shopping Malls in Tianjin
Commercial plaza nighttime carport
Project Overview: The Tianjin City Commercial Plaza outdoor parking facility features 130 parking spaces and is equipped with a 500 kW photovoltaic system; a complete set of standardized, lightweight C-section steel photovoltaic carports is supplied.
The client's existing pain points include: high foot traffic in the shopping mall, making it impractical to permanently close off parking spaces during construction; stringent requirements for the aesthetic appearance of the canopy – whereas conventional steel frame designs often appear crude; and the need to accommodate photovoltaic modules of various specifications for flexible installation and arrangement.
National Construction Support Plan – Lightweight Standard C-Section Steel Formwork Modules; implemented through phased, staggered construction across different zones to ensure uninterrupted normal operation of the shopping mall; the shed's clean, minimalist design complements the commercial landscape; universal track design supports both horizontal and vertical installation of photovoltaic panels; complete set of waterproof sealing accessories provided to prevent water leakage during rainy weather.
Project implementation outcomes: Construction was completed in phased segments without affecting customer flow at the shopping mall; self-generated electricity supplies the mall's central air conditioning system and public lighting, reducing commercial energy consumption; the photovoltaic carport has become a prominent green sustainability showcase within the park.
Case Study 4: Northern Public Institution (School/Government Office Complex) – Photovoltaic Carport
Project Overview: Northern Government Comprehensive Office Complex – featuring 88 official vehicle parking spaces; total installed capacity of 446 kW; comprehensive supply of a photovoltaic vehicle canopy made of GB-standard thickened C-section steel.
The client's existing pain point: Government and enterprise projects are subject to stringent approval processes, requiring a complete set of official qualifications and structural safety inspection reports; the project duration is fixed and non-negotiable, and the client demands long-term quality assurance services.
The National Construction Support Plan provides comprehensive qualification documentation including ISO 9001:2015 Quality Management System certification and a Grade 3A Credit Enterprise certificate; the thickened C-section steel sections enhance the structure's resistance to wind and snow loads; an official structural design verification report is issued; a 25-year structural warranty is offered; and technical personnel will be stationed on-site throughout the construction phase to provide continuous guidance.
Project Implementation Outcomes: The project passed the government project acceptance inspection on the first attempt; the photovoltaic power system meets the daily electricity demand of the office building, establishing a low-carbon government service demonstration project; the overall structure is stable, with no deformation or water leakage issues, and subsequent operation and maintenance are straightforward.
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No. 2, Expressway Auxiliary Road, South Area of High-tech Industrial Park, Zitai Economic and Technological Development Zone, Tianjin, China
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