Talk Directly to
the Manufacturer
Whether you're evaluating commercial & industrial ESS solutions or scaling a residential battery system programme — connect with our engineering team directly. No middlemen, no delays.
Response
Certified
Countries
Direct
System-Level Energy Storage Engineering
From 5 kWh residential stacks to 5 MWh containerized deployments — every inquiry is reviewed by a qualified applications engineer, not a sales script.
View energy storage projects by applicationIs RUEN SOLAR
the Right Partner for You?
We serve B2B partners who value engineering depth over the lowest unit price. Learn about how RUEN SOLAR works before you reach out.
- Inconsistent product quality across orders
- Lack of English marketing materials
- Slow warranty & after-sales response
- Strict delivery timeline guarantees
- Full technical documentation (SLD, BOM)
- Remote commissioning & OTA support
- BMS protocol handshake & firmware
- Custom enclosure & thermal design
- White-label packaging & CE/UL filing
Not yet sure if we're the right fit? Review our engineering-driven service process — or check our IEC-certified energy storage systems and UL-compliant lithium battery solutions before reaching out.
You Have Questions,
We Have Answers
Discover energy storage solutions you won't find anywhere else — thoughtfully designed to power your business. Reliable systems waiting to be deployed.
Location
Ruen Solar Energy Group
Shenzhen, Guangdong
China 518000
Monday–Sunday | 09:00–18:00
(China Time)
Contact
+86 159-9266-5362
Tell Us What You Need
Our team is ready to assist you with every detail, big or small.
Our Global Headquarters
Located in the heart of China's technology innovation hub — Shenzhen
Powering Success Across Continents
From African microgrids to European residential retrofits, our systems perform in the toughest environments. Browse our commercial and industrial project references.
Streamlined Partnership Process
A transparent 6-step roadmap from inquiry to delivery — ensuring your energy storage project moves forward without delays or surprises.
Inquiry & Consultation
We analyse your application scenario. Our team provides a preliminary Engineering Feasibility Analysis within 24 hours.
Solution Design
Our engineers confirm System Sizing & Topology. We match BMS protocols with your inverters and provide SLD drawings.
Sample Validation
Prototype testing to verify performance. We ensure 100% Compatibility with your local grid codes before mass production.
Contract & Production
Confirm Commercial Terms & Production Slot. Our MES system tracks every battery cell batch for full quality traceability.
QC & Certifications
Rigorous aging tests and Pre-Shipment Inspection (PSI). We provide UL/IEC/UN38.3 test reports for market compliance.
Global Delivery
Professional DG packaging. We support FOB/CIF/DDP terms to get batteries safely to your warehouse in 30+ countries.
Real Engineers,
Not Just Sales
We don't just sell boxes. RUEN SOLAR provides full-cycle engineering support to ensure your commercial energy storage projects are technically sound, compliant, and profitable from day one.
Load calculation, SLD design, and ROI analysis for tenders.
3D enclosure modelling, thermal simulation, custom BMS firmware.
Live video guidance for installation, parameter config & troubleshooting.
Assistance with local grid codes: IEC-certified ESS & UL-compliant lithium batteries.
Voice of Partners
David V.
— Solar Installer, South Africa"Packaging was excellent. No damages. We have already pre-sold 60% of this shipment. Let's discuss Q3 order next week."
Switching to Ruen Solar saved us 15% BOM cost. UL1973 report is valid for US market compliance.
People leaders
love the Ruen
experience
We provide tech-first solutions that empower decision makers to build reliable and profitable energy storage businesses.
Frequently Asked Questions
Technical answers for Distributors, EPCs, and Project Owners.
For standard products like our 5 kWh Wall Battery, MOQ is 10 units. For C&I Cabinets or Container ESS, we support single-unit orders for pilot projects.
- Residential Wall Battery: MOQ 10 units
- C&I Cabinet ESS: MOQ 1 unit for pilots
- Container ESS: MOQ 1 unit
- Custom OEM: 20ft container volume
Our products hold key certifications including UL 1973, IEC 62619, CE, and UN38.3. We also assist partners in applying for local grid codes.
- UL 1973 certified (US market)
- IEC 62619 compliant
- CE marking for EU markets
- UN38.3 transport certification
Yes. We offer DDP (Delivered Duty Paid) to the USA, Europe, and South Africa — handling customs clearance and import duties, delivering direct to your door.
- Full customs clearance included
- Import duties pre-paid
- Door-to-door delivery
- USA, EU, South Africa covered
Our BMS is pre-programmed for major brands including Deye, Victron, SMA, Growatt, Sol-Ark, and Goodwe. Custom protocol matching available.
- Deye, Victron, SMA pre-configured
- Growatt, Sol-Ark, Goodwe supported
- Custom protocol matching available
- Full technical documentation provided
Standard 5-year warranty with options to extend to 10 years for LiFePO4 models. Covers performance guarantee and manufacturing defects.
- Standard 5-year warranty
- Extended 10-year option for LiFePO4
- Performance guarantee included
- Manufacturing defect coverage
Absolutely. We welcome partners to visit our Shenzhen HQ and manufacturing facility. Contact us to schedule a tour and meet our engineering team.
- Shenzhen HQ tours available
- Manufacturing facility visits
- Engineering team meetings
- Advance scheduling required
Your Clean Energy Future Awaits
Start Your Project Right Now
Whether you are planning a GW-scale solar park or launching a local storage brand — RUEN SOLAR delivers the engineering precision and manufacturing scale you need.
BOOK NOW