Aluminium and Steel Solar Mounting Solutions Market Forecast 2026-2032: PV Balance-of-System Structural Support for Residential to Utility-Scale Projects
Global Leading Market Research Publisher QYResearch announces the release of its latest report *”Aluminium and Steel Solar Mounting Solutions – Global Market Share and Ranking, Overall Sales and Demand Forecast 2026-2032″*. Based on current situation and impact historical analysis (2021-2025) and forecast calculations (2026-2032), this report provides a comprehensive analysis of the global Aluminium and Steel Solar Mounting Solutions market, including market size, share, demand, industry development status, and forecasts for the next few years.
For photovoltaic (PV) plant developers, engineering procurement and construction (EPC) contractors, and installers, selecting a mounting solution that ensures structural integrity, long-term durability, and installation efficiency is a critical balance-of-system (BOS) decision—directly impacting project economics and operational safety over the 25+ year design life. Aluminium and Steel Solar Mounting Solutions directly address this pain point by providing mechanical support and fixation for PV modules through optimized combinations of lightweight aluminium profiles and high-strength steel structures, engineered to withstand site-specific design loads including wind, snow, and seismic actions while maintaining serviceability (deflections within acceptable limits) and durability (corrosion resistance in outdoor environments). As of 2025, the global market for aluminium and steel solar mounting solutions was valued at US$ 21,760 million, with projections reaching US$ 36,070 million by 2032, advancing at a CAGR of 7.6%. In mainstream utility-scale projects, complete mounting systems are typically budgeted at approximately US$ 0.07–0.10 per watt, with specialised mounting manufacturers achieving blended gross margins ranging from 15% to 30%.
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1. Technical Requirements & Value Chain
Aluminium and Steel Solar Mounting Solutions are structural systems that form a critical part of a PV plant, providing mechanical support and fixation for PV modules over the full design lifetime of the system (typically 25 years or more). The primary engineering requirements are:
- Safety: Sufficient structural strength to withstand site-specific design loads—wind (up to 60 m/s in cyclone-prone regions), snow (up to 3 kN/m² in alpine areas), and seismic actions (PGA up to 0.5g in active zones)
- Serviceability: Adequate stiffness so that deflections and deformations under load remain within acceptable limits (typically <L/200 for ground-mount, <L/100 for roof-mount) and do not affect normal power generation or cause micro-cracking in PV modules
- Durability: Long-term resistance to oxidation and corrosion in outdoor environments (coastal salt spray, industrial pollution, high-UV exposure) so that coatings, fasteners, and connections do not degrade prematurely
These mounting solutions are engineered for easy installation and convenient maintenance on site, often combining lightweight aluminium components (for roof-mount and ease of handling) with high-strength, cost-effective steel members (for ground-mount foundations and large-span structures) to achieve an optimal balance of safety, applicability, and long-term performance.
Value chain: Aluminium and steel solar mounting solutions belong to the PV balance-of-system (BOS) segment. Upstream suppliers include aluminium ingots and extrusions (6061, 6063 alloys), galvanised or stainless steel sections (Q235B, Q355B, ASTM A36), fasteners (stainless steel, zinc-plated), and surface-treatment services such as anodizing (aluminium) and hot-dip galvanizing (steel, typically 85–100 µm coating thickness). Midstream companies design racking systems, fabricate, and pre-assemble profiles into mounting kits. Downstream, EPC contractors and installers integrate these kits into residential roof, commercial and industrial (C&I) roof, and utility-scale ground-mount PV plants.
2. Market Segmentation & Competitive Landscape
The Aluminium and Steel Solar Mounting Solutions market is segmented as follows:
By Material Type:
- Aluminium Solar Mounting Solutions – Lightweight (density 2.7 g/cm³), corrosion-resistant (natural oxide layer), preferred for residential and C&I roof-mount applications where weight limits are critical; typically extruded 6063-T5 or T6 alloy
- Steel Solar Mounting Solutions – High strength (yield strength 235–355 MPa), lower cost per unit strength, preferred for ground-mount utility-scale projects; typically hot-dip galvanised (Z275, Z350 coating) or zinc-aluminium-magnesium coated
By Application:
- Residential Roof – Small-scale (3–20 kW), prioritising lightweight, aesthetics, and ease of installation; aluminium dominant
- Industrial and Commercial (C&I) Roof – Medium-scale (20–500 kW), flat or low-slope roofs requiring ballasted or penetrating attachments; mixed aluminium and steel
- Ground Power Station – Utility-scale (>1 MW to 500 MW+), prioritising cost efficiency and structural strength; steel dominant with aluminium used for tracker torque tubes in some designs
- Other – Carports, agrivoltaics, floating solar, building-integrated PV (BIPV)
Leading Manufacturers (29+ companies):
Nextracker, Arctech Solar Holding, Array Technologies, Jiangsu Guoqiang Zinc-plating Industrial, Xiamen Bymea New Energy, Soltec, PV Hardware, GameChange Solar, Ideematec, JiangSu Zhenjiang NewEnergy Equipment, Tianjin Renhui New Energy Technology, Solar Steel, STI Norland, ArcelorMittal (Exosun), Maibeite (Xiamen) New Energy, Clenergy Technology, Schletter, Versolsolar Hangzhou, Trina Solar, ATEC Architecture, Gibraltar Industries, FTC Solar, K2 Systems, Jiangsu Akcome Science and Technology, Guangdong Baowei New Energy, Convert Italia, Suzhou Kingsun Solar Technology, Suzhou Jsolar Incorporated.
3. Technology Deep Dive & Manufacturing Insights
Between 2024 and 2025, the Aluminium and Steel Solar Mounting Solutions industry achieved significant advances in material efficiency and coating technology. Traditional galvanized steel mounting systems used 275 g/m² (Z275) coating thickness, providing 15–20 year corrosion protection in moderate environments. Next-generation zinc-aluminium-magnesium (ZAM) coatings (5–11% Al, 3% Mg, balance Zn) achieve 2–3× corrosion resistance with the same coating weight, enabling 25+ year durability in coastal and industrial environments without additional painting. For example, a 2024 utility-scale project (500 MW, coastal Gujarat, India) using ZAM-coated steel mounting structures (Magnelis® from ArcelorMittal) achieved estimated corrosion life exceeding 30 years, compared to 18–20 years for conventional Z275 galvanizing.
Technical challenge: aluminium-steel galvanic corrosion prevention.
When aluminium components contact steel fasteners or brackets in outdoor environments, galvanic corrosion occurs (aluminium, being more anodic, corrodes preferentially). Without isolation, corrosion can compromise structural integrity within 5–10 years. Since Q3 2024, leading manufacturers have adopted multi-layer isolation solutions: nylon or polymer washers between aluminium and steel, stainless steel fasteners (grade 304 or 316) with dielectric grease, and anodized aluminium surfaces (20–25 µm coating). Schletter’s 2024 Eco-200 mounting system incorporates a proprietary polymer isolator clip rated for 30-year UV exposure, eliminating galvanic contact while reducing installation time by 15%.
Contrasting discrete vs. continuous manufacturing in mounting solutions production:
- Discrete manufacturing dominates final assembly: individual aluminium extrusions (cut to length, drilled, punched) and steel sections (roll-formed, punched, welded) are assembled into pre-fabricated kits on semi-automated lines. This allows flexible configuration for different module dimensions (182mm, 210mm wafer formats), tilt angles (0–45°), and row spacing but introduces variability in hole alignment and fastener torque.
- Continuous manufacturing applies to roll-forming of steel sections and extrusion of aluminium profiles. High-speed roll-forming lines (30–50 m/min) produce C, Z, and U channels with consistent dimensions; Chinese manufacturers (Jiangsu Guoqiang, JiangSu Zhenjiang) have achieved profile dimensional tolerances of ±0.5 mm (vs. industry standard ±1.0 mm) through AI-controlled roll stand adjustments.
Since January 2025, Nextracker deployed automated torque verification for pre-assembled mounting kits using IoT-enabled torque wrenches, reducing field fastener failures by 80% and enabling the company to offer 30-year structural warranties.
4. Demand Drivers & Forecast (2026-2032)
The projected CAGR of 7.6% is supported by four structural drivers:
- Global PV deployment acceleration: BloombergNEF projects global solar additions of 350–400 GW annually by 2026–2028, up from 250 GW in 2024. Each GW of PV capacity requires approximately 15,000–20,000 tons of steel or 5,000–7,000 tons of aluminium for mounting structures (ground-mount steel-intensive, roof-mount aluminium-intensive). Cumulative mounting material demand 2026–2032: 100–140 million tons.
- Shift to larger module formats: Industry transition from 182mm to 210mm wafers (M10 to G12) has increased module dimensions (2.4 m x 1.3 m for G12 vs. 2.1 m x 1.1 m for M10) and weight (35–40 kg vs. 25–30 kg). Mounting systems must accommodate larger spans (1.5–2.0 m between purlins) and higher wind loads, driving increased material thickness and structural optimization.
- Tracker adoption in utility-scale projects: Single-axis trackers (which rotate modules to follow the sun) now represent 45% of utility-scale ground-mount deployments, up from 30% in 2020. Trackers require more complex mounting structures (torque tubes, bearings, actuators, pile foundations) with higher value per watt—typically US$ 0.15–0.25/W vs. US$ 0.07–0.10/W for fixed-tilt steel structures.
- Corrosion protection upgrades for harsh environments: Coastal, desert, and industrial sites require premium coatings (ZAM, hot-dip galvanizing + powder coating, anodizing + sealing). With 40% of new utility-scale projects located in coastal or high-corrosion zones (Southeast Asia, Middle East, Latin America), premium mounting solutions with 30-year durability warranties command 15–25% price premiums.
Regional outlook (2025 data):
- Asia-Pacific leads with 55% market share, driven by China (domestic installation + manufacturing export hub), India (200 GW target by 2030, BIS certification driving local manufacturing), and Australia (residential roof-mount).
- North America follows at 20%, with US utility-scale (IRA-driven, 30 GW+ annually), residential (NEM 3.0 driving solar+storage), and tracker adoption (Nextracker, Array Technologies, FTC Solar).
- Europe holds 15%, with Germany, Spain, Poland, and Netherlands driving both ground-mount and C&I roof-mount.
- Middle East & Africa account for 7%, with Saudi Arabia, UAE, South Africa driving utility-scale ground-mount (desert environments requiring premium corrosion protection).
- Latin America accounts for 3%, with Brazil (distributed generation) and Chile (utility-scale).
5. Exclusive Observation: The Shift from Aluminium to Ultra-High-Strength Steel in C&I Roof-Mount
A transformative material shift is emerging in commercial and industrial (C&I) roof-mount applications: replacement of aluminium with ultra-high-strength steel (yield strength 550–700 MPa vs. standard 235–355 MPa). Aluminium has traditionally dominated roof-mount due to lightweight (critical for roof load capacity). However, ultra-high-strength steel sections (thickness 0.8–1.2 mm) can achieve the same stiffness as thicker aluminium (2.0–3.0 mm) at 30–40% lower material cost and comparable weight. For example, Clenergy Technology’s 2024 Eco-plus steel roof-mount system (using G550 galvanized steel, yield 550 MPa) weighs 3.8 kg/kW vs. 4.2 kg/kW for equivalent aluminium system, at 25% lower cost. This shift is most pronounced in markets with high aluminium prices (Europe, North America) and for flat roofs where ballasted systems allow steel without penetration. However, aluminium remains dominant in residential pitched roofs (easier handling for installers, corrosion-free in all environments). Ultra-high-strength steel roof-mount captured 18% of C&I roof-mount volume in 2024, up from 8% in 2022, projected to reach 30% by 2028.
6. Upstream Supply Chain & Pricing Outlook
Upstream raw materials for Aluminium and Steel Solar Mounting Solutions include:
- Aluminium: Primary ingots (6063, 6061 alloys) with anodizing or powder-coating finishing. LME aluminium prices averaged US$ 2,200–2,500/ton in 2024.
- Steel: Hot-rolled coils (Q235B, Q355B, ASTM A36) with hot-dip galvanizing (Z275, Z350) or ZAM coating. HRC steel prices averaged US$ 650–800/ton in 2024.
- Fasteners: Stainless steel (304, 316) or zinc-plated steel with anti-corrosion coating.
Since Q2 2024, aluminium prices rose 12% due to energy cost increases (smelting is electricity-intensive) and China’s production curtailments. Steel prices remained stable (iron ore prices US$ 100–120/ton). The average mounting system price ranges from:
- Residential aluminium roof-mount: US$ 0.08–0.12/W
- C&I steel roof-mount: US$ 0.06–0.09/W
- Utility-scale steel ground-mount fixed-tilt: US$ 0.06–0.10/W
- Utility-scale steel tracker: US$ 0.15–0.25/W
Gross profit margins: 15–25% for standard fixed-tilt steel systems, 25–35% for tracker systems and premium-coated solutions.
7. Conclusion & Strategic Recommendations
The Aluminium and Steel Solar Mounting Solutions market is poised for strong 7.6% CAGR growth, driven by global PV deployment acceleration, larger module formats, tracker adoption, and corrosion protection upgrades. Key success factors for industry participants include:
- Developing ultra-high-strength steel (550–700 MPa) roof-mount systems to capture the C&I shift from aluminium, offering 25–40% cost reduction at comparable weight.
- Investing in advanced coating technologies (ZAM, multi-layer anodizing, polymer isolators) to provide 30-year corrosion warranties and capture premium pricing in coastal and industrial environments.
- Expanding tracker component manufacturing (torque tubes, bearings, actuators) to capture the 45%+ tracker penetration in utility-scale ground-mount.
- Pursuing regional manufacturing in high-tariff markets (India BIS certification, US Section 201 tariffs, Brazil local content requirements) to maintain cost competitiveness.
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