Wholesale solar panels don’t come better specified than this. The SG550WM 550W Mono PERC pallet delivers 32 precision-engineered Sungold solar panels in a single shipment — 17,600 watts of peak output capacity, UL 61730 certified, and backed by a 25-year linear power warranty. Whether you are an installer sourcing for a commercial project, a developer pricing a residential subdivision or a serious homeowner investing in a whole house solar solution, buying solar panels by pallet at this specification delivers the per-panel economics that make large-scale solar genuinely cost-effective.
Table of Contents
- Product Specifications
- PERC Monocrystalline Technology
- Electrical Performance
- Certifications and Compliance
- Warranty Coverage
- Pallet Shipping Details
- FAQ
Product Specifications
| Parameter | Detail |
|---|---|
| Model | SG550WM |
| Peak Power (Pmax) | 550W |
| Production Tolerance | ±3% |
| Cell Type | PERC Monocrystalline (7.2 × 3.6 in) |
| Number of Cells | 144 (6×24), 60 cells in series |
| Product Weight | 62.4 lbs |
| Dimensions | 89.7 × 44.7 × 1.4 inch |
| Output Cables | 12 AWG (1ft per cable) |
| Maximum System Voltage | 1500V |
| Wind Resistance | 2400Pa |
| Certifications | UL 61730, CE, TUV, CEC Listed |
| Pallet Qty | 32 panels |
| Package Weight | 2,150 lbs (32 pcs) |
| Package Dimensions | 93 × 48 × 49 inch (32 pcs) |
PERC Monocrystalline Technology
The SG550WM is built on PERC — Passivated Emitter and Rear Cell — monocrystalline technology. This is the current mainstream standard for high-efficiency commercial and residential solar installations, and for good reason.
Standard monocrystalline cells convert light that enters the front face of the panel. PERC cells add a passivation layer on the rear surface that reflects unused light back through the cell for a second conversion pass — squeezing additional efficiency from the same footprint. The passivation layer also reduces electron recombination at the rear surface, improving performance in low-light and high-temperature conditions.
For solar panel buyers purchasing at pallet scale, PERC monocrystalline technology means more watts per square metre of roof or ground space — reducing installation footprint requirements and maximising output per mounting point. These are not entry-level panels. At 550W per unit with 144 cells per panel, the SG550WM represents the upper tier of commercially available monocrystalline solar panels for sale at pallet pricing.
Electrical Performance
| Parameter | Value |
|---|---|
| Maximum Power Current (Imp) | 13.45A |
| Maximum Power Voltage (Vmp) | 41.00V |
| Short Circuit Current (Isc) | 14.03A |
| Open Circuit Voltage (Voc) | 49.7V |
| Maximum System Voltage | 1500V |
The 1500V maximum system voltage rating is a critical commercial specification — enabling longer string configurations that reduce balance-of-system costs, decrease wiring runs and lower overall installation expense. For larger commercial arrays and utility-scale projects, 1500V compatibility is a baseline requirement that this panel meets fully.
Wind resistance at 2400Pa provides structural integrity for installations in exposed or elevated locations — a specification that matters on commercial rooftops and open-field ground mounts where wind loading is a primary structural design variable.
Certifications and Compliance
The SG550WM carries the full certification stack required for professional installation across North American and international markets:
- UL 61730 — the primary US and North American safety certification standard for photovoltaic modules
- CEC Listed — California Energy Commission listing, required for California rebate programmes and widely referenced for quality assurance across US markets
- CE — European conformity marking
- TUV — independent German technical inspection authority certification
For wholesale solar panels purchased at pallet scale, full certification coverage is non-negotiable — ensuring eligibility for installation incentives, utility interconnection approval and insurance coverage across all major markets.
Warranty Coverage
| Period | Output Guarantee |
|---|---|
| 5 years | 95% of rated output |
| 10 years | 90% of rated output |
| 25 years | 80% of rated output |
| 12 years | Material and workmanship |
The 25-year linear power warranty provides long-term performance assurance across the full investment horizon of a whole house solar panels installation or commercial project. The 12-year material and workmanship warranty covers manufacturing defects and component failures — critical protection for bulk purchases at pallet scale.
Pallet Shipping Details
| Parameter | Detail |
|---|---|
| Panels per Pallet | 32 |
| Total Pallet Weight | 2,150 lbs |
| Pallet Dimensions | 93 × 48 × 49 inch |
| Total System Output | 17,600W (17.6kW) |
These are big solar panels shipped on full pallets designed for LTL freight delivery. Confirm site access for freight delivery before ordering. Professional offloading equipment is recommended given the 2,150 lb pallet weight.
Explore the complete range of solar panel pallets and pallet solar products in our Solar Panels, Wholesale Pallets and Residential Solar Systems categories.
What is included in this wholesale solar panels pallet? This wholesale solar panels pallet includes 32 SG550WM 550W Mono PERC monocrystalline solar panels from Sungold, totalling 17,600W of peak output capacity. Each panel is individually certified to UL 61730, CE, TUV and CEC Listed standards. Panels arrive on a single freight pallet weighing approximately 2,150 lbs with dimensions of 93×48×49 inches.
Are these solar panels suitable for whole house solar systems? Yes — the SG550WM is a premium specification panel well-suited to whole house solar panels installations. At 550W per panel, a system of 8–12 panels covers the average residential consumption requirement depending on local irradiance, roof orientation and consumption profile. A full pallet of 32 panels provides enough capacity for large residential systems, multi-unit developments or commercial installations.
What is the per-panel price for this pallet of solar panels? At the pallet pricing shown above, the per-panel cost represents a significant saving compared to individual panel pricing — one of the primary advantages of purchasing solar panels by pallet for installers and large-scale buyers. The exact per-panel cost is calculated from the total pallet price divided by 32 panels.
Do these monocrystalline solar panels for sale include a warranty? Yes — every SG550WM in this pallet comes with a 5-year 95% output warranty, 10-year 90% output warranty, 25-year 80% output warranty and a 12-year material and workmanship warranty. These are industry-standard warranty terms appropriate for commercial and residential installation projects.
What certifications do these bulk solar panels carry? These bulk solar panels carry UL 61730, CEC Listed, CE and TUV certifications — the full stack required for professional installation across North American and international markets. UL 61730 and CEC Listed are particularly important for US-based solar panel buyers accessing federal tax credits and state rebate programmes.
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