Thermal power generation industry development design is the key

Design has become the main obstacle hindering the growth of the Concentrated Solar Power (CSP) industry. Unlike other construction projects, the solar thermal sector is encountering increasing design-related challenges. Many designers from official design institutes lack expertise in solar thermal system design, and the certificates issued by solar energy organizations and the Ministry of Human Resources are often not recognized by the market. "The 'Solar Thermal Engineering Designer' certificate is not approved by design institutes, construction companies, or even real estate developers. What's the point of having such a certificate?" recently stated a representative from a solar thermal company in Xinyu, Jiangxi, during a forum on solar energy and building integration, as reported to China Real Estate News. Market Mismatch The representative shared his own experience: he once participated in a bid for a solar water heater system in a residential project in Jiangxi. He was confident that his 2012 training certificate from the China National Association of Rural Energy Industry Professional Committee on "Design and Construction Qualification of Solar Thermal Utilization Projects and Designers" would help increase the score for his company. However, the client dismissed it, saying, "The People's Insurance Department can't play any role here." According to Kong Linglan, Deputy Director of the Mechatronics Department at UDG Shanghai, "Solar industry designers are different from those at design institutes. While they may be more specialized in solar hot water systems, the design, structure, HVAC, and plumbing aspects require the expertise of traditional design institute professionals." However, when China Real Estate News interviewed solar thermal companies, most responded that design institutes lacked understanding of solar energy. When they took on solar system design work, they would pass the task back to the manufacturers. "At present, most solar energy designs are done by solar companies and then stamped by design institutes," said Zhu Fangxing, Project Manager at the China Architectural Culture Center. "Many design institutes simply don’t understand the design requirements or performance of solar energy. Only large domestic design institutes have newly established solar energy design departments, while others haven’t invested much in this area." Yan Xuegen, an architectural designer at Beijing Urban Design Research Institute, added, "We consider the design of solar hot water systems during the project planning phase. However, the detailed design is handled by the equipment support department of the design institute. Of course, project refinement requires factory collaboration." Kong Linglan also noted that for complex solar projects, cooperation with professional manufacturers is essential. While design institute engineers handle solar pipe layout, manufacturer engineers focus on solar collector plate layout and efficiency issues. Three Key Issues to Address Currently, only 550 people in the country hold relevant certificates for solar engineering designers, yet their status in the solar hot water system design process is very limited. On one hand, they perform specific system design work, but on the other, they are rejected by the design community. In addition, they often act as mere observers due to three main issues: First, policy bottlenecks. Kong Linglan explained, "The biggest difference between solar energy designers and design institute professionals is that the former aren’t qualified to issue official drawings, while the latter are." Second, the lack of standards. Wu Yanyuan, Technical Manager at Beijing Tempe Solar Energy Co., Ltd., said, "Architects usually follow standard building codes, but there’s currently no standardized specification for solar energy in building design. As a result, the connection and insulation of collectors and pipelines, control devices, and circulation systems are mostly left to manufacturers." Wu Yanyuan admitted that in large projects combining solar energy and architecture, formal drawings are typically required, meaning that design personnel must create detailed plans. Third, the issue of design fees. Fan Lixin, General Manager of Beijing Sangpu Culture Communication Co., Ltd., told China Real Estate News, "In the solar thermal engineering market, design institute staff are reluctant to do design work because the design fee isn’t allocated. Naturally, they have no authority to proceed." Yuan Jiapu, Technical Director at Guangdong Five Star Solar Co., Ltd., also pointed out that when clients commission design institutes to design solar hot water systems, they should pay the corresponding design fees. However, clients often refuse to bear this cost, pushing the task directly back to solar companies. How can the current dilemma of solar engineering designers be resolved? The recent "Solar Building Energy Integrated Systems Innovation Technology Conference" organized by the Ministry of Housing and Urban-Rural Development seems to offer some hope. This conference is based on five actual projects under the Ministry, aiming to build energy-efficient structures. It invites design units, solar equipment manufacturers, and installation companies to collaborate on the design of solar hot water systems. Perhaps, after real-world design competitions, solar engineering designers might finally move beyond their current status as mere observers.

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