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Industry news tracking with technical commentary

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  • Can Thermoplastic Encapsulants Rescue Recyclability? The Standards Tug-of-War between Creep Resistance and DismantlingWith the EU WEEE revision and the Circular Economy Act approaching, the bar for PV exports is shifting from 'can it be collected' to 'can it be taken apart'. Today's 85% target is weight-based: glass plus the aluminium frame nearly meet it, while hard-to-recover silver and high-purity silicon are not measured at all. We unpack three technical bottlenecks: crosslinked EVA/POE encapsulants that resist delamination, fluorinated backsheets that release HF during pyrolysis, and non-crosslinked TPO encapsulants that separate easily but must pass the IEC 61730-2 MST 37 creep test. Creep resistance and recyclability are fighting over the same temperature window.
  • China's Wind and Solar Pass 2 TW: The Next Phase of PV Is About ReliabilityBy end-September 2026, China's wind and solar capacity reached 2.01 TW. We unpack three details: solar additions roughly halved, generation growth lagging capacity, and what reliable substitution means for modules and the supply chain.
  • Same UV Test, Very Different UVID Results: Why? A New Fraunhofer Paper ExplainsA Fraunhofer ISE team has published a study of accelerated UV testing in Solar RRL: short-wave UV worsens near-surface defects, higher temperature suppresses degradation, defect generation is roughly proportional to UV dose but net degradation depends on the thermal budget, and UVID almost disappears under simultaneous UV and visible light. We unpack the four findings and, with Kiwa PVEL's latest data on 370 modules, look at what they mean for UV testing, reading test reports and cell design.
  • China's New Module Standard Is Not Yet in Force, but 23.2% Is Already in Tenders: The Countdown for Older Lines Has Moved ForwardChina's mandatory module efficiency standard GB 47834-2026 takes effect on 1 January 2027, but buyers have already acted: Huadian's 5 GW framework tender requires module efficiency of at least 23.2%, and a leading maker has withdrawn its older PERC modules from SOE bids. We summarise the news, the standard's three grade lines and the corresponding power ratings, and comment as technical practitioners: 23.2% is only a pass mark, and the real challenge may be the degradation requirement.
  • Eight Makers Cut Prices and High-Efficiency Modules Slip Too: How Far Are Module Prices from the \"Hangzhou Floor\"?After the National Day holiday, eight module makers cut their quotes by RMB 0.01–0.03/W, and even high-efficiency modules, until now the most stable segment, slipped. The TOPCon 210mm price index fell to RMB 0.7136/W, still about RMB 0.08/W below the RMB 0.79/W floor reported from a meeting in Hangzhou. We unpack this week's data and look at high-power inventory, mandatory delivered pricing and whether this \"floor\" can really hold prices up.
  • An Efficiency Ranking Unchanged for Four Months: BC Tops Out at 25%, TOPCon Close Behind, HJT Holds 740 WThe October edition (58th) of the TaiyangNews commercial module efficiency ranking is unchanged for the fourth month running: BC modules from Aiko and LONGi share first place at 25%, JA Solar's TOPCon module is third at 24.1%, and Risen Energy's HJT module remains the most powerful at 740 W. We look at where the three technologies stand, why power and efficiency need to be read separately, and what lies behind the \"no change\": the listing rules and new products outside the ranking.
  • 584 GW: BNEF Cuts Its Global Solar Outlook Again. What Does China's −29% Mean?BNEF has lowered its outlook for 2026 global solar installations to 584 GW, down 10.8% year on year. China falls from 383 GW to 271 GW (−29%), while markets outside China grow 15% to 313 GW. We unpack how these figures are measured, the real reasons for China's decline, the year-end pressure implied by the BNEF forecast, and what the shift in demand means for module products and reliability.
  • Nameplate 0.70, Field 0.60: How Much Is the Bifacial Rear-Side Gain Overstated?Using two years of SCADA data from a 50 MWp single-axis tracker plant, researchers at the Universitat Politècnica de València and Grupotec found that modules rated at 0.70 bifaciality delivered an effective bifaciality of only about 0.60 in the field, 13–15% lower, with the gap widening at higher irradiance. We unpack four easily confused "bifacial factors", why field performance shrinks, the role of mounting geometry, and what it means for yield models and module selection.
  • 5–10× Faster Inspection, 0.1% Missed Defects: How to Read the Six Numbers as AI Enters LONGi's Storage LineLONGi Jingkong has opened its smart manufacturing base in Suzhou, disclosing an \"MES + BI + AI\" platform and six efficiency and quality numbers. We are positive on the move: well-chosen scenarios, clearly quantified targets, and AI inspection experience from LONGi's Wuhu base. We unpack what the numbers mean, the key bases for reading them, and the challenges and highlights of AI inspection on an energy storage line.
  • US Tandem Modules Are \"Coming Soon\", China's GW Lines Are Ramping: The Real Gate Is the BankCertification is only the entry ticket. Whether tandem modules reach the market depends on whether reliability data are good enough for banks to lend. We check the numbers in the New York Times report, compare US and Chinese tandem progress, and break down the reliability, bankability and cost hurdles.
  • DiCaprio's Third Bet on Solar Still Isn't on ModulesLeonardo DiCaprio has invested in Swedish energy-subscription company Elvy. The money is small but the signal is not: capital is moving towards "services plus finance" downstream in PV, and long-term asset owners will put module reliability back on the table.
  • 55 PV Plants Surveyed: Is One in Five Modules Cracked? How to Read the NumbersA field survey published in the SPIE/GEESD 2026 proceedings covers 55 PV plants across six regions of China. EL imaging found an average microcrack proportion of 19.92%, while UAV infrared inspection found an average hot-spot proportion of 1.51%. Both rise significantly with years in service; mountain plants show the most microcracks, agrivoltaic plants the most hot spots, and Northwest China ranks highest on both. We comment from three angles: data definitions, cell technology, and O&M/warranty practice.Main section：Testing Basics
  • First Price Rise in October: Three Module Makers Raise Prices — Is the Slide Over?This week China's module market saw its first meaningful round of price increases since October began: TCL Zhonghuan, GCL and Risen raised quotes on some TOPCon products by RMB 0.01–0.03/W, while four other makers cut prices on selected products. The increases are concentrated in two power bins, 630–640 W and 770–780 W, each driven by a different logic. With upstream prices flat, the transaction-price center unchanged and utility-scale demand weak, this looks like a structural repair, not a trend reversal.
  • The New York Times Says Tandem Cells Could Help the US Catch China in Solar. We Doubt ItOn 5 October The New York Times reported that US solar manufacturers hope to catch China with "a big leap" to perovskite/silicon tandem modules. We take the race apart along five dimensions (certification, efficiency, shipments, production lines and bottom cells), and use reliability, cost per watt and supply chains to show that tandems are the next generation, but the "US breakthrough, China chased" story does not hold up.Main section：Perovskite & Tandem
  • "China-Made Pellets" for POE Encapsulants: After Going from Zero to One, How Far Has Localisation Come?Three years ago the PV industry was scrambling for POE pellets; today China's nominal POE capacity is about 700 kt a year, imports are falling, and Sinopec Maoming has exported POE to North America for the first time. We review the three barriers behind the bottleneck, progress at each pellet plant, four sober facts about mass production, how film makers are \"swapping the core\", and a four-layer validation approach for introducing domestic pellets.Main section：Encapsulant Films
  • Will China's PV Market Improve by Year-End? Our View: The Fall Has Stopped, but Recovery Is Still Far OffAfter domestic installations halved, export VAT rebates were scrapped and the five industry leaders lost a combined CNY 14.8 billion in H1, will PV improve by year-end? We look at three signs the decline has stopped, three weights still holding the market down, and the latest late-October price and inventory data, and set out a three-phase view for the next six months plus six indicators to track.
  • Payrolls Up Just 29,000, Rate-Hike Bets Cool: Can PV Breathe Easier?US payrolls rose only 29,000 in September and bets on an October hike briefly collapsed, but a hot September CPI followed and a December hike is still the market's base case. This article reviews the data and market reaction, maps four channels through which the jobs data reaches PV, and offers three views - the direction has improved but the level hasn't; supply-side consolidation still drives manufacturing; and reliability is worth more when rates are high.
  • Perovskite Modules Head to Orbit Again: What's Different About GCL Optoelectronics' In-Orbit Test?On 1 October, GCL Optoelectronics' single-junction perovskite modules were integrated for an in-orbit validation mission. This article covers the mission and GCL's path to space, and assesses from a materials and reliability perspective why perovskites suit space power, the hard problems of thermal cycling, vacuum, UV and atomic oxygen, and the outlook for GCL's three-step space plan.
  • Offshore PV Corrosion Protection Gets an Industry Standard: The Text Isn't Out Yet, but Your BOM Should Be ReadyOn October 21, China's National Energy Administration (NEA) published Announcement No. 4 of 2026 (signed October 9), approving 287 energy industry standards in one batch. One entry deserves the offshore PV community's attention: NB/T 12126—2026, Technical Specification for Corrosion Protection of Offshore PV Structures, effective April 9, 2027.
  • Musk Raises 200 GW Again with Jensen Huang: How Long Will This Solar Story Run?On 29 September Musk restated the SpaceX + Tesla target of 200 GW of solar manufacturing capacity a year. From a PV practitioner's view, this article reviews real progress since January (equipment purchases, Tesla's Project Crystal Sun in Texas, moves upstream), the technical and execution hurdles, and what it means for China's PV industry.
  • Stop Calling Appliance Makers "Outsiders" in SolarHome appliances and PV share the same logic in efficiency regulation, manufacturing, channels and smart integration. China's mandatory standard GB 47834—2026, released in June 2026, brings PV modules and inverters into the era of efficiency grades plus minimum entry thresholds.