How long is the delivery time?

The average lead time is within 15 working days, regardless of peak or off-peak seasons.

What certifications do your products have?

Our products are certified with CE and TUV standards to ensure safety and quality.

Is technical support provided?

Yes, we provide installation manuals, training sessions, and video guides for all systems.

300kw PV Battery Storage Solar Backup Battery Cost Solar and Battery System Cost

Name: 300kw PV Battery Storage Solar Backup Battery Cost Solar and Battery System Cost
Brand: Rosen Solar Energy Co., Ltd.
SKU: 1957101935

Anhui, ChinaRosen Solar Energy Co., Ltd.

US$1.80

300-499 Kiowatt/Kiowatts

US$1.60

500-799 Kiowatt/Kiowatts

US$1.50

800-999 Kiowatt/Kiowatts

US$1.40

1,000+ Kiowatt/Kiowatts

Product profile

Customization

Available

Condition

New

Certification

CE, TUV

Model NO.

RS300KWH-ESS

Application

Industrial, Commercial

Specification

Normal

Inverter

Hybrid Inverter with Automatic Switch

Battery

Gel/Lithium Battery with BMS

Material

Aluminum Alloy.Hot DIP Galvanized Steel etc

Solar Panel

Mono/Poly 158.75/166/182/210mm

Monitoring

WiFi/GPRS Device etc

PV Cable

6mm2/10mm2/25mm2/35mm2 etc

Mounting Brackets

Customized Roof/Ground Installation

Accessories

Mc-4 Spanner, Crimping Pliers etc

OEM/ODM

Acceptable

Technical Support

Installation Manual/Training/Video etc

Output Voltage

EU:230/240/380/400V Us:110/220/240VAC

Output Frequency

50/60Hz; ±5

Transport Package

Wooden Box, Carton on Pallets etc

Trademark

Rosen or OEM

Origin

China

HS Code

8543709990

Production Capacity

1000000 Set/Sets Per Week

Key features

Flexible Battery Options: Supports Lithium, Gel, and OPzV battery types with BMS/MBMS/EMS protection.

Customized Mounting Solutions: Offers customized roof and ground installation brackets for various sites.

Wide Voltage Compatibility: Supports EU (230/240/380/400V) and US (110/220/240V) output standards.

OEM/ODM Acceptance: Accepts OEM and ODM orders for customized solar system configurations.

Multiple Solar Panel Sizes: Compatible with Mono/Poly panels in 158.75mm, 166mm, 182mm, and 210mm sizes.

Comprehensive Technical Support: Provides installation manuals, training, and video guides for setup.

CE and TUV Certified: All systems meet CE and TUV certification standards for safety and quality.

Fast Lead Time: Average lead time within 15 working days for both peak and off-peak seasons.

Company profile

Fast DeliveryOverseas ServicesCustomization from SamplesOEM Services

Rosen Solar Energy Co., Ltd.

Anhui, China

Business Type: Manufacturer/FactoryExport Year: 2008-01-01Nearest Port: Ningbo Port, Shanghai Port, Shenzhen PortAverage Response Time: ≤8.13hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, Others, FCA

AI-Powered supplier vetting

SummaryRosen Solar Energy Co., Ltd. is identified as a Chinese manufacturer/factory offering solar panels, solar systems, lithium batteries, AGM/GEL batteries, and energy storage systems. The supplier reports broad customization, ODM, SDK availability, recent new-product activity, and OEM service for known brands. Its service procedures include documented assessment, corrective action, and complaint-handling records, although the approved-supplier list lacks approval signatures or dates. Overseas service is reported in Hungary for debugging, equipment installation, and training, but there are no overseas showrooms, agents, branches, or offline trade-show participation. Export sales represent 71%–90% of total sales, and the supplier reports peak- and off-season lead times within 15 working days. Production-scale information is inconsistent: one slice describes a battery factory with 145,000 square meters and more than 1,360 employees, while another lists 20 total employees. No certification information or...

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and a limited company in China. Its stated product scope includes solar panels, solar systems, lithium batteries, AGM/GEL batteries, and solar energy storage systems, while it is not reported as part of a larger company group.

After-Sales capabilityThe supplier reports overseas services in Hungary, including debugging, equipment installation, and training. It also has written procedures and followed records for service assessment, corrective and preventive actions, and customer complaint handling; however, it has no overseas showroom, agent, branch, or offline trade-show participation, and its approved-supplier list lacks approval signatures or dates.

R&D capabilityThe supplier reports new-product activity during the past year, ODM service, and an available SDK. Its business scope also explicitly includes R&D and production of solar LED and optical-material products, supporting an active product-development capability.

Production capacityThe supplier states that it manufactures, processes, assembles, sells, and installs related products, and describes battery production across lithium, VRLA AGM, VRLA GEL, OPzS, and OPzV types for multiple applications. Production-scale evidence is inconsistent because one slice reports a 145,000-square-meter factory with more than 1,360 employees, while another lists 20 total employees; capacity cannot therefore be reliably quantified.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. These capabilities are reported in both the R&D and design-service information, indicating broad customization coverage.

Client casesThe supplier reports providing OEM services for known brands, which is evidence of at least one type of customer engagement. However, no brand names, project details, order examples, or independently verifiable customer case information is provided.