On June 10, the much‑anticipated “SNEC PV&ES 18th (2025) International Solar Photovoltaic and Smart Energy & Storage and Battery Technology & Equipment (Shanghai) Conference” (known as SNEC PV&ES) opened in grand style at the InterContinental Shanghai Expo.
Under the theme “PV-ESS Integration, Intelligence Leading the Future,” this annual flagship event brings together the world’s foremost photovoltaic and energy-storage companies, scholars, and industry leaders to explore breakthroughs in renewable-energy innovation, industry upgrading, and sustainable‑development pathways.
MEOX on the Ground
MEOX sent its sales and marketing team to the Shanghai Expo to attend the exhibition and participate in the unveiling of the“Top 10 Technology Highlights.” On the first day of this showcase, each shortlisted innovation was evaluated for technical novelty, application breakthrough, and market impact, immersing attendees in the latest waves of PV-ESS technology and insight.
MEOX demonstrated its pull-out PV-panel container solution, addressing the power needs of construction sites, emergency‑response operations, warehouses and logistics, mining (including open‑pit), industrial manufacturing, agriculture and aquaculture, and remote-area electrification.
Our fully prefabricated Mobile Solar Container is designed for fast installation with minimal man‑hours, easy transport, and superior energy efficiency. Suitable for commercial, industrial, and large‑scale solar applications, it carries CE certification, an IP65 protection rating (dust‑tight, water‑jet resistant), and is engineered to withstand wind speeds up to Beaufort scale 8 and seismic events of magnitude 8. With a design life exceeding 15 years, our solution brings green power wherever it’s needed.
1. Photovoltaic‑Cell Innovations: BC vs. TOPCon
Back–Contact (BC) Cells
Efficiency Breakthrough: Aiko’s “full‑screen” ABC modules hit 25% production efficiency, leading global rankings for 27 consecutive months by eliminating front‑side busbars for 30–40 W higher power than TOPCon.
Aesthetic Appeal: LONGi’s HPBC 2.0 modules achieve 24.43% efficiency for high‑end distributed markets; Skyworth and Aiko jointly launched 24 %+ ABC modules tailored for residential “purist aesthetics.”
Challenges: High equipment costs (¥300–400 million per GW), 95% yield, and 55–65% bifacial rate limit utility‑scale deployment.
TOPCon Technology
Cost-Efficiency Balance: GW‑scale investment under ¥150 million, 26.5% mass‑production efficiency, and 75-90% bifacial rate. Jinko’s TOPCon modules outperform BC under low-light by 4.71%.
Innovations: Bifacial microcrystalline cells, thinner 1.6 mm glass, and perovskite tandem cells (24.06% efficiency breakthrough). Yangtze Energy’s HJT modules exceed 90% bifacial performance.
2. PV–ESS–Charging Integrated Systems
Delixi Electric launched the world’s first DC isolator switch (CDGNE-4000) with “DC2000V/2000A” CQC certification, addressing high-voltage safety challenges. Their modular, digital-twin-enabled portfolio spans utility, distributed, and residential PV-ESS, shifting the market from ”device stacking” to “value symbiosis.”
Skyworth PV showcased affordable solutions for township roofs (33% cost reduction), plug‑and‑play urban “Power Stations,” BIPV-customized aesthetics, and zero-CAPEX, zero-OPEX commercial systems.
1. Emerging Technology Trends
Hybrid Storage Technologies: Sodium-ion (–30% cost), flow batteries (25-year lifespan), and solid‑state (enhanced safety) will shine. BYD and CATL are piloting sodium systems; Haichen plans 2025 production.
Physical Storage: Compression, flywheel, and gravity systems for frequency regulation—SiYuan Electric’s supercapacitor module demonstrates outstanding low‑temperature resilience.
Hydrogen & Fuel-Cell: From electrolyzers to refueling stations to fuel‑cell vehicles, forming a “PV-ESS-H₂-ammonia” ecosystem.
High-Capacity Cells & Safety: 500 Ah+ cells (e.g., CRRC Zhuzhou’s 688 Ah) are moving toward mass production; triple‑layer protection (cell-vent valve + pack-level fire suppression + liquid cooling) is becoming standard.
Digitalization & Smart O&M: Huawei’s digital‑twin power plants and SiYuan Electric’s AI algorithms aim for cycle efficiencies > 90%. Virtual power plants aggregate distributed assets for spot-market gains (e.g., Shanxi’s single-day revenues up to ¥ 100,000).
2. Showcase of Critical Value–Chain Segments
System Integration & Engineering: Tailored for industrial & commercial “long-tail” demands (IP65 waterproof cabinets for cold chain, high-backup power for data centers), standalone ESS stations (107% YTD installation growth through May 2025), and scenario‑based packages.
PV-ESS-Charging Fusion: V2G chargers, ultra-fast stations (350 kW+), and community microgrids designed for PV self‑consumption and time-of-use arbitrage.
Core Equipment Upgrades: String‑inverter ESS (e.g., SiYuan’s DC2000), active‑balancing BMS (30% longer life), and advanced thermal management (40% cost reduction via liquid cooling).
Materials & Recycling: Low-cost water-based sodium-ion electrolytes, proton-exchange membranes for flow batteries, second-life battery testing, and closed-loop lithium-recycling processes.
3. Market & Policy Signals
Global Expansion: Leading firms securing overseas orders (CATL’s 19 GWh UAE deal); focus on Southeast Asia and the Middle East for localized solutions.
Tariff Windows: U.S. energy‑storage tariffs set to rise to 25% in 2026; 2025 is a strategic export year for cell and pack providers.
Regulations & Finance: China’s spot‑market rules (e.g., Hebei’s ≥ 90% capacity‑leasing compliance), capacity‑compensation pilots (Inner Mongolia at ¥0.35/kWh), and IRR‑calculation tools for C&I storage projects (Yangtze Delta price spread > ¥0.9/kWh).
Standards & Certification: Interpretation of China’s new “Lithium-Ion Battery Industry Normative Conditions (2024)” (≥ 50% capacity utilization) and support services like UL/IEC testing to shorten overseas certification by 30%.
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