SolarStock USA
SolarStock USA
U.S. Solar Inventory
N-Type TOPCon · 10 SKUs · CA, GA, NJ, TX warehouses

TOPCon Solar Panels USA.
Real U.S. inventory. Ready to ship.

Sunpro Power, Mission Solar, and ZN Shine N-Type TOPCon bifacial solar modules in U.S. stock. 41.66 MW across 4 warehouses — California, Georgia, New Jersey, and Texas. Commercial pallets to utility-scale container quantities. Freight from U.S. warehouse.

41.66 MW
TOPCon in stock
41.66 MW
Ready to ship
2455
Pallets available
4
U.S. warehouses
20.64 MW
Delivered to customers
last 15 days · since Aug 28
41.66 MW
Total TOPCon MW
41.66 MW
Ready now
2455
Pallets
CA · GA · NJ · TX
Warehouses
TOPCon inventory · pallet pricing · live

TOPCon solar panel pricing by lot.

Pallet pricing shown for all TOPCon lots. Container quantities (20+ pallets) priced via RFQ.

12 lots · 41.660 MW ready · 10 lots · 169.330 MW inbound · D2C from manufacturer
Freight quoted separately
Live inventory Warehouse states CA · GA · NJ · TX
How many pallets?
Best volume price
TechWHPalletsPcs/plt$/Plt
SPDG630-N132R12Transparent630TOPConNJCarteret1.2705636$0.2912$6,604
BUY NOW
ZXM7-UHLDD144-595W595TOPConCAOntario0.6433036$0.2533$5,426
BUY NOW
SPDG595-N144M10Transparent595TOPConCACommerce0.043236$0.2912$6,238
BUY NOW
ZXM7-UHLDD144-590W590TOPConCAOntario7.00933036$0.2533$5,380
MSH10-590HN4GFEOC590TOPConTXSan Antonio1.2446831$0.4111$7,519
BUY NOW
SPDG590-N144M10🇺🇸 Domestic590TOPConGADublin1.1895636$0.3889$8,260
BUY NOW
SPDG450-N108M10450TOPConCAVernon3.41320537$0.2912$4,848
BUY NOW
SPDG450-N108M10450TOPConNJCarteret1.2327437$0.2912$4,848
BUY NOW
SPDG440-N108M10440TOPConCACommerce15.8561,00136$0.2912$4,613
BUY NOW
ZXM7-UHLDD108-440W BOB440TOPConCAOntario5.10032236$0.2587$4,098
BUY NOW
SPDG440-N108M10440TOPConCACity of Industry3.78623936$0.2912$4,613
BUY NOW
MSX10-435HN0BFEOC435TOPConTXSan Antonio0.8777228$0.4444$5,413
BUY NOW
DOMESTIC CONTENT 6.2%
Arriving — quoted, not sold from the shelf
SPDG590-N144M10590TOPConCA· warehouse TBC0.43720ETA Sept 202637$0.2912$6,357
SPDG590-N144M10590TOPConNJCarteret0.1969ETA Sept 202637$0.2912$6,357
SPDG590-N144M10590TOPConCA· warehouse TBC0.1316ETA Sept 202637$0.2912$6,357
SPDG590-N144M10590TOPConCA· warehouse TBC3.493160ETA Oct 202637$0.2912$6,357
SPDG590-N144M10590TOPConNJCarteret3.122143ETA Oct 202637$0.2912$6,357
SPDG590-N144M10590TOPConCA· warehouse TBC60.2512,760ETA Nov 202637$0.2912$6,357
SPDG590-N144M10🇺🇸 Domestic590TOPConGADublin47.3272,168ETA Nov 202637$0.3889$8,490
SPDG630-N132R12Transparent630TOPConCA· warehouse TBC40.0931,720ETA Nov 202637$0.2912$6,788
SPDG590-N144M10590TOPConNJCarteret9.911454ETA Nov 202637$0.2912$6,357
SPDG590-N144M10590TOPConCA· warehouse TBC4.366200ETA Nov 202637$0.2912$6,357
All prices in USD · Freight quoted separately upon RESERVE · Stock subject to prior sale · Pallet pricing above · Container 40HQ tier below · MW-scale allocations on RFQ
Container 40HQ tier
One full container · priced separately on RFQ
Modules ship loose, not palletized · quote on request
Container 40HQ
SPDG590-N144M10
USA-GA
DOMESTICIRA 45X
Modules · loose
720
Total kW
424.80
Pricing
Priced separately on RFQ
Request container quote →
Need more than one container?

Multi-container and MW-scale orders are quoted manually — volume, delivery window and freight optimized per project.

MW-scale project quote →
Technology

Why TOPCon for commercial
and utility-scale projects.

N-Type TOPCon (Tunnel Oxide Passivated Contact) delivers measurably better performance than P-Type PERC across the metrics that drive project economics: higher module efficiency, lower temperature coefficient, stronger bifacial gain, and a steeper long-term degradation curve.

For EPCs and developers where BOS, racking, and labor are fixed costs, higher-wattage TOPCon modules reduce module count, cut installation labor, and improve energy yield per dollar invested — making TOPCon the preferred technology for bankable utility and C&I projects.

Cell technology
N-Type TOPCon (Tunnel Oxide Passivated Contact)
Bifacial
Yes — bifacial glass/glass or glass/backsheet
Temp. coefficient (Pmax)
approx. −0.30 %/°C
Bifacial factor
≥ 0.70
Warranty
30-year linear power guarantee
Certifications
UL 61730, IEC 61215, IEC 61730
BNEF Tier 1
5 consecutive years (2022–2026)
Shipping
Freight from U.S. warehouse (CA, GA, NJ, TX)
Warehouse availability

TOPCon inventory by warehouse.

Direct procurement channel

Request TOPCon allocation.

Reserve TOPCon inventory or submit an RFQ for your commercial or utility-scale project. Pallet pricing is public — container pricing via RFQ.

Shipping
Freight from U.S. warehouse
MOQ
1 pallet (commercial) · Container+ (utility)
Response time
Within 4 hours (business hours)
TOPCon technology FAQ

Frequently asked questions

What is TOPCon solar technology?

TOPCon (Tunnel Oxide Passivated Contact) is an N-Type silicon solar cell technology that achieves higher efficiency than conventional PERC cells. By passivating the rear contact with a thin tunneling oxide layer, TOPCon modules deliver higher power output, better low-light performance, lower temperature coefficient, and a steeper degradation curve — all critical for commercial and utility-scale project economics.

What TOPCon wattages does SolarStock USA carry?

SolarStock USA stocks multiple Sunpro Power, Mission Solar, and ZN Shine TOPCon N-Type SKUs across a range of wattages. Current in-stock configurations and live availability are shown above. All TOPCon inventory is in U.S. warehouses — no vessel ETAs, no import delays.

Why choose TOPCon over PERC for commercial and utility-scale projects?

TOPCon N-Type modules deliver 0.5–1.0 percentage points higher efficiency than PERC P-Type, a lower temperature coefficient (typically -0.30%/°C vs -0.35%/°C), and better bifacial gain due to lower recombination. For bankable utility projects and C&I rooftops where BOS and land costs are fixed, higher-wattage TOPCon modules reduce module count, racking, wiring, and labor costs significantly per MWdc installed.

Are Sunpro Power TOPCon modules BNEF Tier 1 bankable?

Yes. Sunpro Power has maintained Bloomberg NEF Tier 1 PV Module Manufacturer status for five consecutive years (2022–2026). BNEF Tier 1 is the global standard for bankability accepted by international project finance lenders and tax-equity investors. UL 61730 and IEC 61215/61730 certifications are current.

Are IRA Section 45X Domestic Content TOPCon modules available?

Yes. Selected TOPCon SKUs assembled at our US manufacturing partner facility in Lyerly, GA qualify for IRA Section 45X Domestic Content treatment, unlocking the 10% ITC bonus adder for eligible projects. Manufacturer attestation, BOM, and Bill of Lading documentation are provided with every Domestic Content shipment.

What is the pallet configuration for TOPCon modules?

Pallet configurations vary by SKU — typical TOPCon pallet sizes range from 30 to 36 modules per pallet. Current pallet quantities, panels-per-pallet, and available pallets are shown in real time in the inventory grid above.

Can I get PAN files and PVsyst data for Sunpro Power TOPCon modules?

Yes. PAN files for PVsyst energy modeling are available for immediate download from our Download Center, along with datasheets, IEC/UL certifications, and product specifications. Custom documentation packages for EPC due diligence can be prepared within 24 hours.

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