TOPCon Solar Cells, PV Modules, and Energy Storage Systems

Serving utility, commercial, and residential buyers across 17+ countries with N-type TOPCon cells reaching 26.3% efficiency and modules from 580 Wp to 770 Wp.

N-Type TOPCon Solar Cells
Bifacial TOPCon PV Modules
Energy Storage Systems
10GW modules / 20GW cells (current production capacity across domestic bases)Germany
2018
Founded
10 GW
Module production capacity
20 GW
Cell production capacity
17 countries
Export markets
ISO 9001:2015, TUV, CE, IEC, ETL (Intertek), BIS, INMETRO, MCS, SASO, CQC, CNAS, IECEE
Certifications
10GW modules / 20GW cells (current production capacity across domestic bases)GermanyBrazilNetherlandsIndiaSouth AfricaTanzania+12
ISO 9001:2015TUVBISCQCCEIECETL (Intertek)MCSINMETROSASOCNAS (laboratory accreditation)IECEE

Supplier-declared, pending confirmation

Products and Services

N-Type TOPCon Solar Cells

Monocrystalline N-type TOPCon cells in 182 mm and 210 mm formats, 16, 18 busbars, efficiency range 24.6, 26.3% depending on SKU.

  • 183-16BB: 182.2×183.75 mm, 8.23, 8.60 W, 24.6, 25.7% efficiency
  • 210R-16BB-EPD: 182.3×105 mm, 4.81, 5.02 W, 25.2, 26.3% efficiency
  • 210R-16BB: 182.3×210 mm, 9.52, 9.93 W, 24.9, 26.0% efficiency
  • 210-18BB: 210×210 mm, 18 busbars, 10.98, 11.46 W, 24.9, 26.0% efficiency

Bifacial TOPCon PV Modules

Half-cell bifacial modules from 580 Wp to 770 Wp at 1500 V DC system voltage, available in 182 mm and 210 mm cell formats for rooftop and utility-scale applications.

  • Jueying 5: 144 half-cells, 580, 620 Wp, 24.00% max efficiency, 2278×1134×35 mm
  • Linlong 6: 132 half-cells, 620, 650 Wp, 24.06% max efficiency, 2382×1134×30 mm
  • Wukong 4 (156-cell): 156 half-cells, 730, 770 Wp, 23.97% max efficiency, 2465×1303×33 mm
  • Wukong 4 TOPCon: 132 half-cells, 705, 730 Wp, 23.50% max efficiency, 2384×1303×33 mm

Energy Storage Systems

Lithium battery storage solutions from 4.9 kWh off-grid residential kits to 64 kWh modular wall/floor-mount systems, rated IP65 and operable from -20 to 55°C.

  • RM-HFL-16K-V1 home battery: 10.24 kWh / 314 Ah, up to 4 units in parallel (64 kWh), IP65
  • 3.5 kW off-grid system: 4× 580 W modules, GST48-3500 VII inverter, 4.9 kWh lithium battery
  • 10 kW off-grid system: 18× 580 W modules, GST48-10K VII inverter, dual GBP48-200AH batteries

EPC Contracting and O&M Services

Full engineering, procurement, and construction services for solar power stations, plus ongoing operations and maintenance support for commissioned plants globally.

  • Utility-scale solar EPC
  • Commercial and industrial rooftop EPC
  • Long-term O&M contracts for operational plants

Why Buyers Work With Ronma

26.3% cell efficiency verified

The 210R-16BB-EPD cell reaches up to 26.3% conversion efficiency, giving downstream module assemblers and project developers measurable output gains per unit area.

20 GW cell and 10 GW module capacity

Domestic manufacturing bases in Zhejiang carry 20 GW of annual cell capacity and 10 GW of module capacity, supporting large-volume purchase orders without subcontracting.

Broad certification coverage

Products carry TUV, CE, IEC, ETL (Intertek), BIS, INMETRO, MCS, and SASO approvals, reducing buyer-side qualification effort for markets across Europe, South Asia, the Middle East, and South America.

Cell-to-system vertical integration

Ronma manufactures cells, assembles modules, produces energy storage hardware, and delivers EPC projects, so buyers can source across the value chain from a single qualified supplier.

Active in 17 export markets since 2018

Established shipment records into Germany, Brazil, India, South Africa, the United Arab Emirates, Vietnam, and 11 additional countries provide references and logistics precedent for new buyers.

Sourcing FAQ

What types of solar cells does Ronma manufacture?

Ronma manufactures P-type and N-type TOPCon monocrystalline solar cells. Current N-type SKUs span 182 mm and 210 mm wafer formats with 16 or 18 busbars and efficiency ratings from 24.6% to 26.3% depending on the cell size.

What is the available module wattage range?

Bifacial TOPCon modules are available from 580 Wp (Jueying 5, 144-cell) up to 770 Wp (Wukong 4, 156-cell). All modules are rated for 1500 V DC maximum system voltage.

Is Ronma a manufacturer or a trading company?

Ronma Solar Group is a manufacturer headquartered in Jinhua, Zhejiang, China, with production capacity of 20 GW for cells and 10 GW for modules across its domestic manufacturing bases.

Which markets does Ronma currently export to?

Confirmed export destinations include Germany, Brazil, Netherlands, India, South Africa, Tanzania, Nigeria, Pakistan, Kenya, Vietnam, Iraq, the United Arab Emirates, Uzbekistan, Colombia, Thailand, Bangladesh, and Croatia.

Which certifications do Ronma products hold?

Products carry ISO 9001:2015 (quality management), TUV, CE, IEC, ETL (Intertek), BIS (India), INMETRO (Brazil), MCS (United Kingdom), SASO (Saudi Arabia), CQC, CNAS laboratory accreditation, and IECEE. Buyers should confirm specific certificate scope and validity for their target market before ordering.

Does Ronma offer EPC services in addition to product supply?

Yes. Ronma provides EPC general contracting for solar power stations and ongoing O&M services for commissioned plants. Contact the team through the inquiry form to discuss project scope, location, and timeline.

How do I request pricing or product samples?

Submit the inquiry form on this page with your company name, target market, product of interest, and estimated volume. The Ronma export team will respond with pricing details and next steps for sample requests.

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