概况介绍：推进BIPV标准化——解决监管差距和绩效挑战

Building integrated Photovoltaic (BIPV) are innovative buildingmaterials or elements such as roofs, facades and windows thatintegrated solar technologies.What is BIPV?BIPV has a dual purpose:electricity generation; andfunctioning as traditional building componentsChallenges Adressed in the Report *Regulatory Gaps:Existing standards mainly focus on either photovoltaic or building requirements but lack aunified and precise integration of BIPV-specific testing requirements.Testing Complexity:Need for harmonized standards to avoid redundant testing and certifications.Market Barriers:High costs, long timelines, and unclear procedures for BIPV approval hinder adoption.Ensuressafety, reliability, and performance consistencyacross global markets.Benefits of StandardizationSimplifiesmarket access for manufacturers, fostering international collaboration.Promotes BIPV adoptionto meet renewable energy and building efficiency goals.* This fact sheet summarises a comprehensive report by IEA PVPS Task 15: Parolini, F., Bonomo, P., Frontini, F., Wilson, H. (2024). Parolini, F., Bonomo, P.,Frontini, F., Wilson, H. (Eds.), Advancing BIPV Standardization: Addressing Regulatory Gaps and Performance Challenges (Report No. T15-24:2024). IEAPVPS Task 15.http://www.iea-pvps.org/ BIPV Testing Procedures and RequirementsBIPV modules must demonstrate safeoperation under all expected conditions,including shadow resilience, resistance tohotspots, insulation integrity, and long-termperformance under varying environmentalfactors. Challenges that create non-standardoperating conditions must be accounted forin testing.Electrical SafetyBIPV modules must withstand mechanicalstresses such as snow loads, windpressures, and impacts, often under moresevere conditions, such as hightemperatures. As such, tailored impacttesting procedures are required for BIPV toreflect real-world risks to building envelopes,and existing PV mechanical load tests needto be adapted.Mechanical SafetyBIPV products must contribute reliably to theoverall structural stability of the buildingenvelope, so testing must address long-termexposure to weather, mechanical fatigue,and material aging effects that couldcompromise building safety or energygeneration.Structural Integrity inStandardization DevelopmentTests must ensure that BIPV roofing andfacade products maintain watertightnessunder simulated storm conditions involvingstrong wind and rain forces. Otherwise,water ingress can cause building damage,reduce insulation performance, andcompromise system electrical safety.Wind-Driven Rain TestNeeds for Standardization AdaptationUnder current IEC standards, variation inmaterials, design, or manufacturing requires retesting tomaintain product certification. Flexible certification modelsshould be introduced, where families of similar products arequalified under one umbrella certification with definedtolerances for changes.Performing several certification processesfor the same product leads to higher costs and complexity.Harmonized certification approaches that validate bothelectrical and building functionality through a combinedassessment process are urgently needed.BIPV products require independentassessments for PV electrical performance and constructionmaterial performance, and overlapping standards can lead toduplicate or conflicting procedures. Developing unifiedprocesses and integrated retesting frameworks would reduceunnecessary duplication and simplify compliance pathways.PV-Related RetestingDouble CertificationBIPV RetestingCost, Time and UncertaintyFull BIPV certification processes can take 12–24 months, high certification costs can prove challenging forsmall-scale production, and standards are interpreted differentlyaccording to country and region. These barriers slow thedeployment of cutting-edge BIPV technologies. Regulatory GapsDual Compliance ChallengesBIPV products must satisfy both photovoltaic standards (focused on electrical safety and energy generation) andconstruction regulations (focused on durability, safety, and performance as building materials).Fragmented Standardshe standardisation framework for BIPV systems is fragmented, with reference standards coming from bothelectrical and building sectors, leading to diverse and incomplete testing requirements for the correctassessment of active construction elements. A unified performance-based testing tailored to façade or roofconditions (thermal, impact, water) can better support the adoption and implementation of BIPV in theconstruction sector.Consequences for the IndustryThe absence of a unified regulatory pathway increases costs, delays market entry, and discourages innovationand investment, particularly from small and medium-sized enterprises (SMEs).International Efforts UnderwayISO/IEC Joint Working Group 11 (JWG 11) is working to harmonise PV and building standards, but significantregulatory integration is still required, also harmonising the standard and tests across countries.Want to know more?About I