One Partner, Accountable for the Whole System
MARWELL SOLAR is an energy storage company built around a simple promise: one partner takes responsibility for your entire system.
From our factory in Zhongshan, Guangdong, we design, manufacture and integrate complete battery energy storage solutions — battery systems, BMS, power conversion and energy management software — for commercial, industrial and utility-scale projects worldwide.
Because we engineer and assemble the core systems ourselves, integration is not a risk we pass on to you — it is work we finish inside our own factory. Every unit is commissioned as a complete, working system before it ships: standardized, all-in-one, integrally transportable, and ready to connect on arrival. One contract, one warranty, one accountable partner — from the first design sketch to 24/7 operation.
A Decade of Hands-on BESS Deployment
Safety first — from cell audits to system-level fire-safety design, across the entire project cycle.
Reliability and availability — string architecture keeps every battery string independent: proportional derating instead of system-wide outages.
Care-free battery management — active balancing BMS and intelligent O&M keep every cell consistent, so capacity fade stays predictable.
End-to-end service — design, commissioning, 24/7 monitoring, extended warranties and performance guarantees from one partner.
Where Quality Is Manufactured
From cell supply-chain audits to system-level fire testing, we follow the highest standards at every step of production.
One Product Family, 20kWh to 7.5MWh
Every system is designed, assembled and tested in our own factory — same cell platform, same BMS philosophy, same string architecture.
Cabinet Type 96–256kWh
Outdoor all-in-one cabinet · IP55 · air-cooled · aerosol fire protection
Architecture, BMS and Software — All Ours
String Architecture
Every battery string runs on its own modular PCS — a fault means proportional derating, never a system-wide outage.
Active-Balancing BMS
Charge redistributed from high cells to low cells during operation — protecting usable capacity, safety and cycle life.
Intelligent O&M Platform
IEC 60870-5-102/104 and MQTT, EU/NA local servers, real-time alarms by email and SMS — unattended operation by default.
From Cell Audit to 24/7 Operation
Quality in energy storage is decided long before a system reaches your site.
Cell Audit
Cells qualified at the source — consistency at cell level is the foundation.
System Design
Electrical, thermal and fire safety engineered together, around your site.
Manufacturing & Testing
Assembled and tested in our own factory — including system-level fire-safety verification.
Factory Acceptance
Commissioned as a complete system before shipment.
Delivery & Commissioning
Integrally transportable units, lifted into place and connected. No EPC phase.
24/7 Operation
Monitoring, alarms, extended warranties and performance guarantees.
From a 31kWh Lodge to a 32MWh Plant
Systems operating across Asia, Africa and the Middle East — a selection of recent deliveries.
Baghdad Container Storage Project
Baghdad, Iraq · 2.5MW / 5.015MWh (20FT)
Johannesburg Industrial Park Backup
Johannesburg, South Africa · 480kWh (3 towers)
Ho Chi Minh City Factory Peak-Shaving
Ho Chi Minh City, Vietnam · 261kWh (13+1)
Making Renewable Energy Never Stop
Partner with MARWELL SOLAR on your next storage project.