Technology

The angular cloudiness index (ACI) combines overall cloudiness and variations in cloud cover inferred from PV generation data, with its angular range classified into bad, fair, and good weather categories. (Image Credit: Parczyk, P., Szyc, K. & Burduk, R., “One-day-ahead photovoltaic power prediction based on local weather properties analysis,” Scientific Reports (2026). https://doi.org/10.1038/s41598-026-68720-2)
A study from Poland combines overall and variable cloudiness indicators to improve one-day-ahead PV power predictions without external weather data
DEIF's stall at The Battery Show.
The company’s EMS includes four types of controllers for synchronizing upstream breakers, controlling PV inverters, storage, and DG sets
TCL's stall at The REI 2026.
The company showcased its 470 W TOPCon and 485 W BC shingled modules for rooftop installations, while displaying its wafer lineup for Indian cell makers
Ecosolex's booth at The Battery Show.
The company's residential showcase included a 16.1 kWh standalone and a 53.7 kWh All-in-One ESS, while its C&I products were 208.96 and 261 kWh cabinet-based ESSs and a 3.314 MWh container-based ESS
DMEGC Solar’s new S-shaped steel-frame design reduces rear-side shading by 76%, increasing the unshaded area and improving bifacial performance.
New S-shaped frame design reduces rear-side shading by 76%, with the company reporting improved bifaciality and mechanical strength for utility-scale applications
A schematic of the photoresist-based selective emitter approach, which retains lower sheet resistance beneath metal contacts while increasing it in the non-contacted regions. (Image Credit: Liu, Q. et al., Solar Energy Materials and Solar Cells, Vol. 310, 2027, Article 114810)
Researchers demonstrate a laser-free selective emitter process, achieving a 0.16% efficiency gain over a conventional uniform emitter
GoodWe’s REI 2026 showcase included the ESA C&I battery storage system, a 2 MW / 4 MWh utility-scale solution, residential hybrid storage systems, and GT Series string inverters. (Image Credit: GoodWe)
The company introduced its 125 kW / 261 kWh ESA system for C&I applications, alongside utility-scale storage, residential hybrid systems, and string inverters
TaiyangNews High-Efficiency Solar Technologies 2026
TOPCon, Back Contact & Space PV: Scaling Performance, Expanding Horizons
Emfex Energy's stall at The Battery Show.
The displayed product uses a 125 kW PCS, employs a hybrid cooling method, and supports up to eight units connected in parallel for future capacity expansion
Wood Mackenzie compares lithium carbonate and sodium carbonate price trends from 2022 to 2028, highlighting the price difference between the two battery materials.
New report estimates 21% lower lifetime costs for sodium-ion battery systems compared with LFP, with system-level cost parity expected after 2030
Jinko ESS's stall at The Battery Show.
The two displayed products incorporate a 130.5 kW PCS, with a 0.5P C-rate for the 261-kWh ESS and 0.25P for the 522-kWh ESS
Illustration of charge behavior at grain boundaries between (100) and (111) crystal orientations under dark and illuminated conditions, along with changes observed during prolonged light exposure.
PolyU and Zhejiang University study links uneven charge losses at crystal grain boundaries to perovskite cell degradation, with targeted chemical treatment improving stability
Highstar's booth at The Battery Show.
The company’s showcase consisted of prismatic 314 Ah and 392 Ah LFP batteries
SunDrive Solar and Space Machines Company are collaborating to develop lightweight solar panels for spacecraft using copper-based HJT solar cells.
The Australian companies aim to develop lightweight copper-based HJT solar panels for spacecraft, with prototype testing planned by April 2027
Schematic of the PV-TEG system, showing the 2 × 2 thermoelectric generator array mounted on the module’s rear side, connected to an aluminum heat sink and a self-powered wireless monitoring unit. (Image Credit: Y. Jiang et al., Applied Thermal Engineering 309 (2026), 133776)
Researchers use a rear-mounted thermoelectric array to map hotspot positions, reduce local temperatures and generate power for module monitoring
Livana's booth at The Battery Show.
The displayed product range included 100 Ah, 200 Ah, and 314 Ah batteries, either 12.8 V or 25.6 V, and a 100 Ah UPS system
JA's presentation at TaiyangNews online conference.
This new module design complements the existing cell layout, gapless cell-to-cell interconnection, repositioning of the ribbon interconnection section, and ribbon hole placement
Researchers investigated light-converting encapsulation layers that absorb UV radiation and re-emit it at longer wavelengths, potentially reducing photocurrent losses in TOPCon solar modules.
Study by European researchers shows how light-converting encapsulation layers could protect TOPCon solar cells from UV radiation while limiting photocurrent losses
Trinasolar’s Ling Zhuang presented simulation results showing a 50°C reduction in maximum hot-spot temperature with the company’s quarter-cut cell and junction box design.
At the TaiyangNews Reliable PV Module Design Conference 2026, Trinasolar discussed improvements in shading tolerance, mechanical strength, PID resistance, and manufacturing quality
DMEGC expects its G12R-based TOPCon modules to reach 660 W while continuing with its current 3.0 technology, with further improvements planned in subsequent product generations. (Image Credit: TaiyangNews)
The company’s Infinity RT 3.0 lineup combines cell interconnection changes with application-specific designs for residential, C&I, and utility-scale installations
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