Photovoltaics & Energy Storage Sector: Q3 2025 Performance Review

Anti-Involution Drives Loss Narrowing; Fundamentals Solidify at the Bottom

Date: November 2025
Sector: Renewable Energy / Photovoltaics (PV) & Energy Storage
Analysts: Yao Yao, Yuwen Dian, Zhang Jiawen (Guojin Securities)

Executive Summary

The Chinese photovoltaic (PV) and energy storage sector has reached a definitive inflection point in the third quarter of 2025. While demand remains robust—with domestic installations up 49% YoY and module exports up 14% YoY in the first nine months of 2025—the industry has transitioned from a phase of pure volume growth to one focused on profitability repair and structural consolidation.

The core narrative for Q3 2025 is "Anti-Involution" (Rationalization). Since late June, coordinated efforts to curb irrational price competition have led to a significant rebound in upstream prices, particularly polysilicon, which rose by over 50% from its lows. This price recovery, combined with reduced inventory write-downs and lower hydroelectric power costs during the wet season, has driven a marked narrowing of losses across the supply chain. The SW Photovoltaic Equipment index reported a net attributable profit loss of only RMB 100 million in Q3, a substantial improvement from previous quarters, with gross margins stabilizing at 9.8%.

While downstream module and battery segments still face margin pressure as price increases have not fully covered rising input costs, leading integrated players are mitigating losses through optimized shipment structures and high-margin overseas markets (particularly the US). Meanwhile, auxiliary material sectors such as solar glass and inverters demonstrate resilient profitability due to stable competitive landscapes and lower correlation with main-chain price volatility.

We maintain a positive outlook on the sector’s right-side recovery. With balance sheets stabilizing, capital expenditures curbing, and operating cash flows improving, we recommend strategic bottom-fishing in high-quality leaders. Key investment themes include: (1) High-growth large-scale storage leaders; (2) Financially robust leaders in stable sub-sectors (glass, low-cost silicon, efficient cells); and (3) Companies successfully diversifying into second-growth curves (semiconductors, AI, robotics).

Key Takeaways

1. Demand Resilience Amidst Structural Shifts

• Domestic Market: In the first three quarters of 2025, China added 240.27 GW of new PV capacity, a 49% YoY increase. However, Q3 saw a sequential slowdown due to the front-loading of installations ahead of policy changes (Document No. 136), with September additions dropping to 28 GW (-51% YoY, -81% QoQ).
• Export Market: Overseas demand accelerated in Q3, acting as a critical buffer. Total battery and module exports reached 265.9 GW in 9M25 (+14% YoY). In September alone, exports surged to 102.6 GW (+36% YoY, +20% QoQ), driven by restocking ahead of potential export tax rebate cancellations and strong global demand.
• Production Discipline: Module production schedules were adjusted downward to match demand, falling to 157 GW in Q3 (-9% QoQ). Conversely, polysilicon production increased by 28% QoQ to 366,000 tons, leveraging low hydroelectricity costs to maximize output and dilute fixed costs.

2. Price Recovery & Profitability Repair

• Upstream Surge: The "anti-involution" campaign triggered a sharp price rebound in upstream materials. Polysilicon (N-type dense material) prices rose ~56% from bottom levels, reaching ~RMB 49,700/ton by late October. Wafer and cell prices followed suit, increasing by 21-29% and 9-14% respectively.
• Margin Dynamics:
  • Polysilicon: Leading producers (Tongwei, GCL, Daqo) returned to profitability in Q3 due to higher selling prices, lower electricity costs (wet season), and improved utilization rates. Inventory impairment charges significantly decreased.
  • Wafers: Profitability improved due to price pass-through and the digestion of low-cost inventory.
  • Cells & Modules: Margins remain under pressure as component price hikes lag behind raw material cost increases. Most integrated manufacturers are still operating near break-even or at a slight loss, though those with significant US market exposure (e.g., Canadian Solar, Jinko) showed relative resilience.
  • Auxiliaries: Solar glass and encapsulant films saw price repairs in August-September due to supply constraints (cold repairs in glass) and raw material (EVA resin) price hikes, leading to margin stabilization for top-tier players.

3. Balance Sheet Health & Cash Flow Improvement

• Operating Cash Flow (OCF): OCF improved sequentially for most main-chain companies in Q3 as working capital management tightened. Financing cash flows turned negative, indicating a peak in interest-bearing liabilities and a shift towards deleveraging.
• Capital Expenditure (CapEx): CapEx has slowed significantly since 2H24. Companies are prioritizing survival and efficiency over expansion, with spending largely limited to technological upgrades rather than new capacity. This discipline accelerates market clearing of inefficient产能 (capacity).
• Liquidity & Solvency:
  • Main Chain: Liquidity is diverging. Leaders like LONGi and Daqo Energy maintain robust cash positions, while highly leveraged players in the battery and module segments (e.g., Aiko, Trina) face tighter liquidity constraints. Debt ratios are stabilizing but remain elevated for some.
  • Auxiliaries: Top-tier auxiliary firms (e.g., Foster, Meichang) exhibit strong solvency with low debt ratios and ample cash reserves, outperforming smaller peers.

4. Operational Efficiency Metrics

• Asset Turnover: Fixed asset turnover ratios across all segments remain significantly below the 2022-2023 cycle peaks, reflecting underutilized capacity.
• Working Capital: The net operating cycle for the main chain has shortened slightly, indicating better receivables and inventory management. However, auxiliary material providers face increased working capital pressure, likely due to extended payment terms imposed by cash-strained main-chain customers.

Detailed Sector Analysis

I. Main Chain: Polysilicon, Wafers, Cells, and Modules

1. Polysilicon: The Turnaround Leader
* Performance: Q3 marked a pivotal turnaround. Prices surged from ~RMB 32,000/ton in June to ~RMB 50,000/ton in October.
* Cost Advantage: The wet season in Southwest China reduced electricity costs, a major component of polysilicon production. Combined with higher utilization rates, cash costs for leaders like GCL and Daqo dropped by 1-5% QoQ.
* Profitability: Major players reported positive net profits for their silicon businesses in Q3, reversing the deep losses of H1 2025. Inventory impairments, a major drag in previous quarters, were minimal.

2. Wafers: Benefiting from Inventory Revaluation
* Pricing: Wafer prices (N-type 182/210mm) increased by 21-29% in Q3.
* Margins: Companies like TCL Zhonghuan and Hongyuan Green Energy saw margin repair. The presence of low-cost inventory acquired in H1 provided a temporary buffer against rising silicon costs, boosting gross margins in Q3. However, sustainability depends on continued price stability.

3. Cells & Modules: Persistent Pressure
* Pricing Power: Module prices remained relatively flat in Q3 (~RMB 0.69/W for TOPCon dual-glass), failing to fully pass through the rising costs of silicon and wafers.
* Volume Control: To prevent deeper losses, integrated manufacturers intentionally slowed shipment growth. Q3 module shipments for leading firms were muted.
* Differentiation:
* US Exposure: Companies with established distribution channels in the US (e.g., Canadian Solar, JinkoSolar) benefited from higher regional premiums, offsetting domestic/global average losses.
* Technology: TOPCon remains the mainstream, but BC (Back Contact) and HJT technologies are gaining traction among premium segments, offering slight margin advantages for specialized players like Aiko and Huasun (unlisted).

II. Auxiliary Materials: Stability and Divergence

1. Solar Glass: Supply-Demand Rebalancing
* Dynamic: In July, glass prices hit historic lows, triggering widespread cold repairs (furnace shutdowns). By August, inventory levels dropped sharply, allowing prices to rebound.
* Price Action: 2.0mm glass prices surged to RMB 13/sqm in September.
* Profitability: Leaders like Flat Glass and Xinyi Solar restored profitability. Smaller players with higher energy costs remain challenged. The duopoly structure continues to provide pricing power to the top two.

2. Encapsulant Films (EVA/POE)
* Cost Push: EVA resin prices rose in August due to maintenance shutdowns and seasonal demand from other industries (foaming, cables).
* Pricing: Film manufacturers executed three price hikes between late August and September.
* Margins: While the sector was loss-making in early Q3, the price adjustments have likely restored margins for leaders like Foster. The gap between Tier 1 (Foster) and Tier 2/3 players remains wide due to scale and procurement advantages.

3. Inverters & Storage: Decoupled from Main Chain Volatility
* Revenue Growth: Inverter and storage companies reported an average revenue growth of 11.7% YoY in Q3 2025. Standouts included Auro Energy (+48%), Kstar (+41%), and Shenghong Shares (+29%).
* Margins: Gross margins averaged a slight decline of 3.0 ppt YoY, primarily due to shifts in product mix and geographic exposure. However, absolute margin levels remain healthy (30-40% range for leaders like Sungrow and Ginlong).
* Inventory: Inventory days decreased by 13 days YoY to 192 days, signaling the end of the destocking cycle and improved operational efficiency.

III. Equipment Sector: Innovation and Diversification

• Order Book Pressure: Contract liabilities (a proxy for future revenue) continued to decline as new capacity expansions stalled. The "second derivative" of growth is negative for standard equipment.
• Resilience Drivers:
  1. Technological Upgrades: Demand for efficiency-boosting retrofits (e.g., TOPCon 3.0, edge passivation, steel mesh printing) provides a steady stream of orders for leaders like Maxwell (Maiwei) and JieJia WeiChuang.
  2. Second Growth Curves: Equipment makers are leveraging their precision manufacturing capabilities to enter semiconductor, lithium battery, and AI computing hardware sectors. Companies with successful diversification (e.g., Autowell, High-Tech) show greater order resilience.
• Cash Flow: Operating cash flow turned positive sequentially in Q3 as companies tightened credit policies and collected receivables from earlier TOPCon expansion projects. Credit impairment losses increased, reflecting prudent risk management regarding weaker clients.

Financial Deep Dive: Balance Sheet & Cash Flow

1. Asset Structure & Solvency

• Main Chain: Interest-bearing liabilities have likely peaked. The focus is now on deleveraging. LONGi Green Energy stands out with RMB 49.3 billion in short-term surplus funds (excluding payables), providing a strong buffer against volatility.
• Auxiliaries: Light-asset segments (film, junction boxes, silver paste) generally exhibit better solvency ratios than heavy-asset main chain segments. Foster’s current ratio of 13.1x underscores its financial fortress status.

2. Cash Flow Trends

• Operating Cash Flow (OCF):
  • Main Chain: Improved in Q3. LONGi, Trina, and Tongwei reported positive or significantly improved OCF. This reflects stricter working capital management and reduced inventory buildup.
  • Battery Segment: Remained weak due to rising raw material costs (silicon/silver) outpacing collections.
  • Auxiliaries: Mixed. Glass leaders generated positive OCF, while film and frame manufacturers faced pressure from extended receivable periods.
• Investing Cash Flow: CapEx continues to decline across the board. This is a bullish signal for long-term supply-demand balance, as it prevents further oversupply.
• Financing Cash Flow: Net negative in Q3 for many firms, indicating repayment of debts and a reduction in reliance on external financing.

Risks / Headwinds

1. International Trade Barriers:

   • Risk: Escalating trade restrictions from the US, EU, and India (tariffs, local content requirements, anti-circumvention investigations).
   • Impact: Could erode the profitability of overseas markets, which are currently the primary profit centers for Chinese manufacturers. Forced localization may increase CAPEX and reduce ROI.

2. Traditional Energy Price Volatility:

   • Risk: A significant and sustained drop in oil, gas, or coal prices.
   • Impact: Would reduce the economic competitiveness of PV+Storage systems, potentially slowing down installation demand, especially in price-sensitive emerging markets.

3. Irrational Capacity Expansion:

   • Risk: Despite current discipline, if prices rise too quickly, idle capacity may restart, or new cross-industry capital may enter, reigniting price wars.
   • Impact: Would delay the anticipated profitability recovery and extend the period of margin compression.

4. Energy Storage Cost Reduction Miss:

   • Risk: If battery costs do not fall as expected, or if grid integration costs remain high.
   • Impact: Could limit the penetration rate of PV in the energy mix, as storage is essential for handling PV intermittency. This would cap the long-term growth ceiling for the sector.

5. Inventory Valuation Risks:

   • Risk: Rapid technological iteration (e.g., shift from TOPCon to BC/HJT) could render existing inventory obsolete.
   • Impact: Potential for renewed asset impairment charges, particularly for companies holding large stocks of older-generation products.

Rating / Sector Outlook

Outlook: Positive (Overweight)
Strategy: Bottom-Fishing & Quality Selection

The PV sector has clearly passed the "policy bottom" and "price bottom." We are now in the early stages of the "profitability bottom" recovery. The "anti-involution" measures are showing tangible results, with upstream prices stabilizing and losses narrowing. While a V-shaped recovery is unlikely due to lingering overcapacity, a steady, L-shaped recovery with gradual margin improvement is the base case.

We expect Q4 2025 and H1 2026 to see further consolidation, where financially weak players exit the market, and leaders gain market share. The sector is transitioning from a beta-driven growth story to an alpha-driven quality story.

Investment Rating: BUY on leaders; NEUTRAL on laggards.

Investment View & Recommended Stocks

We recommend a three-pronged investment strategy focusing on certainty, financial health, and future growth optionality.

Theme 1: High-Growth Large-Scale Storage Leaders

Rationale: The integration of PV with storage is accelerating. Large-scale storage (utility-scale) is seeing robust demand globally. These companies benefit from strong brand recognition, channel advantages, and higher barriers to entry compared to residential inverters.

• Sungrow Power Supply (300274.SZ): Global leader in inverters and storage systems. Strong profitability (GM ~36%), robust cash flow, and dominant market share in key overseas markets.
  • Valuation: 2025E PE ~26x.
• Canadian Solar (688472.SH / CSIQ): Unique integrated model with strong storage deployment capabilities and high-margin US module sales.
  • Valuation: 2025E PE ~41x (reflecting high growth expectations).
• CATL (300750.SZ): While primarily a battery maker, its dominance in energy storage batteries makes it a core beneficiary of the PV-storage synergy.

Theme 2: Financially Robust Leaders in Stable Sub-Sectors

Rationale: In a consolidating market, companies with low costs, strong balance sheets, and stable competitive landscapes will survive and thrive. They offer safety and dividend potential.

• Solar Glass:
  • Flat Glass (601865.SH / 6865.HK): Duopoly leader with cost advantages. Margins recovering with glass price hikes.
  • Xinyi Solar (0968.HK): Strong cash position, low debt, and consistent dividend payer.
• Low-Cost Polysilicon:
  • Tongwei Co. (600438.SH): Lowest cost producer. Returned to profitability in Q3. Strong balance sheet allows it to withstand downturns and acquire distressed assets.
  • GCL Tech (3800.HK): Leader in granular silicon (lower energy consumption). Benefiting from the price rebound.
• Efficient Cells/Modules:
  • Junda Shares (002865.SZ): Pure-play TOPCon cell leader with strong overseas exposure.
  • Hengdian Group DMEGC (002056.SZ): Diversified business model (magnetics + PV) provides stability. Strong profitability in niche module markets.
  • JA Solar (002459.SZ): Vertically integrated leader with disciplined expansion and improving margins.
• Consumables:
  • Meichang Shares (300861.SZ): Diamond wire leader. High margins, low debt, and dominant market share. Essential consumable with recurring demand.

Theme 3: "Second Growth Curve" Innovators

Rationale: Companies leveraging their core manufacturing/equipment expertise to enter high-growth adjacent fields (Semiconductors, Robotics, AI Hardware). This diversification reduces reliance on the cyclical PV market and offers higher valuation multiples.

• Equipment Manufacturers:
  • Autowell (688516.SH): Expanding from PV module equipment into semiconductor and lithium battery equipment. Strong order book resilience.
  • Maxwell Technologies (300751.SZ): Leader in HJT equipment. Technology moat is deep. Exploring new applications for vacuum technology.
  • JieJia WeiChuang (300724.SZ): Broad portfolio in cell equipment. Benefiting from TOPCon upgrades and HJT adoption.
• Auxiliary Material Innovators:
  • Foster (603806.SH): Beyond film, expanding into electronic materials and hydrogen fuel cell components. Fortress balance sheet supports R&D.
  • Polymer Material (688503.SH): Silver paste leader. Developing conductive pastes for semiconductors and AI chip packaging.

Valuation Summary Table (Selected Targets)

(Note: Valuations based on estimates as of Oct 31, 2025. PE ratios for loss-making 2024 companies are not applicable or based on forward earnings.)

Conclusion

The Q3 2025 performance review confirms that the PV sector is navigating the trough of its cycle. The "anti-involution" policy framework has successfully stabilized prices and halted the race to the bottom. While top-line revenue growth has moderated, the quality of earnings is improving, with cash flows strengthening and balance sheets de-risking.

For institutional investors, the current environment offers a compelling risk-reward profile for high-quality leaders. The era of indiscriminate beta returns is over; future alpha will be generated by selecting companies with:
1. Cost Leadership: Ability to profit even at lower price levels (e.g., Tongwei, Flat Glass).
2. Financial Resilience: Strong cash positions to survive the consolidation phase (e.g., LONGi, Foster).
3. Technological/Market Moats: Access to high-margin markets (US/Europe) or next-gen tech (HJT/BC) (e.g., Sungrow, Junda, Maxwell).
4. Diversification: Successful expansion into non-PV high-growth sectors (e.g., Autowell, Polymer Material).

We advise accumulating positions in these leaders during any market dips, anticipating a steady appreciation in valuations as profitability metrics continue to normalize through 2026.

Disclaimer

This report is prepared by Guojin Securities for institutional investors only. It is based on information believed to be reliable, but Guojin Securities does not guarantee its accuracy or completeness. The views expressed are those of the analysts at the time of writing and are subject to change without notice. This report does not constitute an offer to sell or a solicitation of an offer to buy any securities. Investors should conduct their own independent research and consult with professional advisors before making investment decisions. Past performance is not indicative of future results.