Bangladesh's First Large Capacity BESS: 8.35 MWh at Janata Jute Mills
Case Study - A collaborative approach between Akij Bashir Group, Cynergy Limited and Sungrow
A Milestone for Industrial Energy Storage in Bangladesh
The 8.35 MWh Battery Energy Storage System (BESS) has been successfully implemented at Janata Jute Mills Limited in Faridpur, marking a significant milestone in Bangladesh’s industrial energy transition.
At the time of installation, the project represents Bangladesh’s first BESS deployment of this scale. It demonstrates how large industrial facilities can integrate advanced battery storage with renewable energy to improve power reliability, optimise energy utilisation, and reduce dependence on conventional backup generation.
The BESS is integrated with approximately 18.87 MWp of solar PV capacity, comprising rooftop, ground-mounted, and floating solar installations. Together, these technologies form one of the country’s most comprehensive industrial solar-plus-storage ecosystems and serve as an important reference point for large-scale renewable energy integration in Bangladesh.
Project Responsibilities: A Collaborative Approach
The 8.35 MWh BESS project was implemented through clearly defined responsibilities shared between Akij Bashir Group, Cynergy Limited, and Sungrow.
Akij Bashir Group — Overall Solution, Design & Procurement
Akij Bashir Group was responsible for the overall BESS solution, system design, and procurement of the BESS equipment. This included overall project and system planning, technical design and configuration, equipment selection, and procurement of the principal BESS system.
Cynergy Limited — On-Site Installation, Civil & Electrical Works
Cynergy Limited was responsible for the on-site installation of the 8.35 MWh BESS and the associated civil and electrical works required for its physical implementation.
Cynergy’s scope included:
- Construction of the BESS civil foundation
- Placement and positioning of the BESS system onto the completed foundation
- Associated cable laying and installation
- Cable routing
- Cable termination
- Procurement and supply of required installation accessories
- Coordination and execution of associated on-site civil and electrical installation activities
Through this scope, Cynergy supported Akij Bashir Group in translating the BESS solution and design into the completed physical installation at Janata Jute Mills.
Sungrow — BESS Commissioning
Sungrow was responsible for the commissioning of the BESS system, including the specialised commissioning activities required to bring the battery energy storage equipment into operation following completion of installation.
This collaborative structure combined Akij Bashir Group’s overall solution, design and procurement responsibility, Cynergy Limited’s on-site civil and electrical installation capability, and Sungrow’s specialised BESS commissioning expertise.
The Challenge: Reliable Power for Energy-Intensive Manufacturing
Continuous and reliable electricity is critical for large manufacturing operations. Grid interruptions, power instability, peak energy requirements, and dependence on conventional backup generators can disrupt production and increase operating costs.
At the same time, industrial facilities investing heavily in solar power face a fundamental challenge: solar generation is concentrated during daylight hours, while industrial energy demand often continues throughout the day and night.
With substantial renewable generation capacity developed across its Faridpur facility, Janata Jute Mills required a solution capable of improving the utilisation of solar power while strengthening the resilience and flexibility of its electrical infrastructure.
Integrating large-scale battery energy storage into the facility’s renewable-energy ecosystem provided the strategic response.
The Solution: 8.35 MWh of Advanced Battery Energy Storage
An 8.35 MWh BESS was designed and implemented to store electrical energy and make it available according to the facility’s operational requirements.
The system enables energy generated during periods of strong solar production to be stored and subsequently utilised when required. This creates a more flexible energy architecture in which generation, storage, and consumption can be managed as an integrated system rather than as independent components.
The result is an industrial energy system designed not only around how much renewable electricity can be generated, but when that energy is available and how effectively it can be utilised.
Integrating 18.87 MWp of Solar with 8.35 MWh of Energy Storage
The BESS forms part of a large and diversified renewable-energy infrastructure at Janata Jute Mills.
The facility integrates approximately 18.87 MWp of solar PV capacity across three different installation platforms:
- 10 MWp Industrial Shed Rooftop Solar PV
- 8.11 MWp Ground-Mounted Solar PV
- 758.4 kWp Floating Solar PV
- 8.35 MWh Battery Energy Storage System
This diversified approach maximises renewable-energy generation by utilising industrial rooftops, available land, and water surfaces, while integrating battery storage to extend the usefulness of that renewable electricity beyond solar-generation hours.
The operating concept is straightforward:
Generate
Store
Manage
Utilize
Solar electricity generated during the day can serve the facility’s immediate energy requirements, while available energy can be directed to the BESS. Stored electricity can then be dispatched according to operational needs — including during periods of reduced solar generation, evening operations, grid disturbances, or other energy requirements.
By combining nearly 18.87 MWp of solar PV with 8.35 MWh of battery storage, the project demonstrates how renewable generation and energy storage can work together as part of a unified industrial energy strategy.
Strengthening Energy Reliability and Resilience
For a large manufacturing operation, even short interruptions in electricity supply can affect production processes and result in operational losses.
An industrial-scale BESS provides an additional layer of energy resilience by maintaining a substantial reserve of stored electrical energy within the facility.
Depending on the operating strategy and system configuration, battery storage can support:
- Improved power reliability and energy resilience
- Solar energy shifting beyond daylight generation hours
- Greater utilisation of renewable electricity
- Reduced reliance on conventional backup generation
- Peak demand management
- Improved energy management and operational flexibility
- Reduced exposure to grid instability
- Lower fuel consumption and associated emissions
Rather than functioning solely as an emergency backup solution, the Janata Jute Mills project shows how BESS can become an active component of industrial energy management.
Moving Beyond Conventional Backup Generation
Historically, industrial facilities in Bangladesh have relied heavily on conventional generators to provide backup electricity during grid interruptions.
Large-scale battery storage introduces a fundamentally different approach.
Instead of generating additional electricity through fuel combustion whenever backup power is required, a BESS enables previously generated electricity — including renewable solar energy — to be stored and dispatched when needed.
This approach can help reduce generator operating hours and fuel consumption while supporting a cleaner, more flexible, and more efficient industrial energy infrastructure.
Key Project Highlights
| Project Component | Capacity / Details |
|---|---|
| Battery Energy Storage System | 8.35 MWh |
| Industrial Shed Rooftop Solar PV | 10 MWp |
| Ground-Mounted Solar PV | 8.11 MWp |
| Floating Solar PV | 758.4 kWp |
| Total Solar PV Capacity | Approx. 18.87 MWp |
| Client | Janata Jute Mills Limited |
| Location | Faridpur, Bangladesh |
| Overall Solution, Design & Procurement | Akij Bashir Group |
| On-Site Installation, Civil & Electrical Works | Cynergy Limited |
| BESS Commissioning | Sungrow |
| Application | Solar Integration, Energy Management & Power Resilience |
| Milestone | First BESS Deployment of This Scale in Bangladesh |
A New Energy Architecture for Bangladesh’s Industries
The significance of the Janata Jute Mills project extends beyond its 8.35 MWh storage capacity.
It demonstrates that large-scale battery storage is no longer only a future concept for Bangladesh. BESS technology can be designed, integrated, and deployed within an operating industrial environment alongside substantial renewable-generation capacity.
The combination of rooftop solar, ground-mounted solar, floating solar, and battery energy storage also shows how industries can maximise multiple available surfaces and integrate them into a comprehensive renewable-energy ecosystem.
As Bangladesh expands renewable-energy adoption and industries place greater emphasis on energy security, efficiency, and sustainability, BESS technology is positioned to become an important component of the country’s future industrial power infrastructure.
Setting a New Benchmark
The 8.35 MWh BESS at Janata Jute Mills, integrated with approximately 18.87 MWp of solar PV, establishes a new benchmark for industrial renewable energy and energy storage in Bangladesh.
By bringing together 10 MWp of industrial rooftop solar, 8.11 MWp of ground-mounted solar, 758.4 kWp of floating solar, and 8.35 MWh of battery storage, the project illustrates what the next generation of industrial energy infrastructure can look like: integrated, resilient, efficient, and increasingly powered by renewable energy.
For Cynergy Limited, the project represents a meaningful contribution through the successful delivery of the complete on-site civil and electrical installation works that enabled the physical realisation of this landmark system.
From Rooftop to Ground. From Water to Battery. One Integrated Energy Ecosystem.
Cynergy Limited — Supporting the Next Generation of Sustainable Industry in Bangladesh.