What is the minimum order quantity (MOQ)?

The minimum order quantity is 1 piece, allowing for flexible purchasing for home or small-scale applications.

How does the company guarantee product quality?

We ensure quality by providing pre-production samples before mass production and conducting 100% final inspection (visual and functional) before shipment.

What is the efficiency of the solar panels and inverter?

Solar panels have a highest conversion efficiency of >17%, and the inverter efficiency is >98.7% with real-time double MPPT tracking.

2kw 3kw 5kw 10kw off Grid Generator Panel Solar Energy Systems

Name: 2kw 3kw 5kw 10kw off Grid Generator Panel Solar Energy Systems
Brand: Nanjing Oulu Electric Corp., Ltd.
SKU: 1963303045

Jiangsu, ChinaNanjing Oulu Electric Corp., Ltd.

US$3.40

3,000-4,999 w

US$3.20

5,000+ w

Sample price:US$3.40/w.Request sample

Product profile

Customization

Available

After-sales Service

2 Years Warranty

Warranty

2 Years

Model NO.

5kw solar power system off grid

Condition

New

Certification

ISO, CE

Application

Home

Specification

Normal

System Type

off Grid

Transport Package

Plywood

Specification

carton+pallet

Trademark

OULU

Origin

China

Production Capacity

50000PCS/Year

Key features

Complete Off-Grid System: Includes solar panels, MPPT controller, GEL batteries, inverter, and mounting structure for home use.

High Efficiency Components: Features >17% conversion efficiency panels and >98.7% efficient inverters with PID resistance.

Flexible Customization: Offers full customization from samples or designs, including system type and power capacity.

2-Year Warranty Coverage: Provides a 2-year warranty for the entire system, with specific 1-year warranty for accessories.

Proven Global Experience: Over 15 years in PV field with 7.2+ GW output and successful cases in 50+ countries.

Strict Quality Control: 100% inspection for finished products with pre-production samples and final shipment checks.

Certified Manufacturer: ISO9001, ISO14001, ISO45001 certified with CE product certification for safety and quality.

Competitive Pricing: Direct manufacturer offering competitive prices with on-time delivery and various payment options.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceCooperated with Fortune 500Years of Export Experience

Nanjing Oulu Electric Corp., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 18 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤15h

AI-Powered supplier vetting

SummaryThe supplier is identified as a factory engaged in research and development, production, sales, installation, and technical services for electric vehicles, accessories, lighting systems, and related equipment. It reports CE product certification and ISO9001:2015, ISO14001, and ISO45001:2018 management-system certifications. Evidence indicates broad customization, ODM/OEM services, SDK availability, recent new-product development, and extensive assembly and testing facilities. The supplier has exported for 18 years, reports peak- and off-season lead times within 15 working days, and maintains documented quality and supplier-management procedures. Its overseas service infrastructure is limited: it reports no overseas warehouses, showrooms, agents, or branches, and serves zero overseas countries, although debugging is offered and offline trade-show participation is documented. Financial records are referenced for 2022–2024, but the provided slices do not include financial results or metrics.

Supplier typeThe supplier is explicitly identified as a factory. Its stated business scope includes R&D, production, sales, technical services, engineering design and construction, equipment installation, and import/export activities.

CertificationsThe supplier reports CE product compliance certification and ISO9001:2015, ISO14001, and ISO45001:2018 management-system certifications. These certifications provide explicit evidence of product and management-system compliance coverage.

After-Sales capabilityThe supplier lists debugging as an overseas service and has participated in the Shanghai New Energy Exhibition and Conference. However, it reports zero countries served overseas and no overseas warehouse, showroom, agent, or branch, indicating limited documented overseas service infrastructure.

R&D capabilityThe supplier reports new products within the past year, ODM services, available SDK support, and one national science and technology progress award. These are explicit indicators of product-development and technical innovation capability.

Production capacityThe supplier reports multiple dedicated production and testing facilities, including battery assembly and welding, OCV and aging testing, inverter assembly, wind-turbine assembly, and painting lines. It also reports documented finished-product inspection, 30 qualified service-capability suppliers, and lead times within 15 working days in both seasons.

Customization capabilityThe supplier explicitly offers customization from samples and designs, minor and full customization, and flexible customization. It also reports both ODM and OEM services, supporting a broad customization offering.

Client casesThe supplier reports OEM service for well-known brands and collaboration with Fortune 500 companies. These statements provide explicit customer-experience evidence, although no customer names, project details, or performance outcomes are provided.

Product Q&A

Q:What is included in the 2kw-10kw off-grid solar system?

The system includes solar panels (250W), MPPT/PWM charge controller, GEL/AGM batteries, off-grid inverter, DC combine box, mounting structure, PV cables, and connectors.

Q:Can the solar system be customized?

Yes, we offer full customization from samples or designs, including minor and flexible customization options for system type and power capacity.

Q:What is the warranty period for the system?

The system comes with a 2-year warranty. Solar panels have a >25-year warranty, while accessories like cables and switches have a 1-year warranty.

Q:What certifications does the product have?

The products are CE certified, and the company holds ISO9001, ISO14001, and ISO45001 management system certifications.

Q:What are the payment and delivery terms?

Accepted payments include T/T, L/C, PayPal, and Western Union. Delivery terms are FOB, EXW, or Express. Lead time is within 15 workdays.