Off-Grid Solar & BESS
Pre-Built Containerised Solar & Battery Systems for Demanding Environments
Power isn’t optional — it’s essential. At SustainGroup, we design and deliver containerised off-grid Solar and Battery Energy Storage Systems (BESS) that are built to perform where others fail. Our off-grid solutions are engineered for durability, scalability, and real-world African conditions.
With over 100 systems deployed across 18 African countries, we know what it takes to keep the power on, even in the most remote or demanding environments.
Built Tough.
Designed to Deliver.
Our off-grid solar and storage systems are pre-configured, pre-tested, and assembled in our ISO-certified facilities in South Africa, ready for rapid deployment with no surprises on site.
Our systems are used in a wide range of applications, including but not limited to mini-grid solutions, commercial and industrial hybrid power, energy arbitrage and peak shaving, and reliable backup for remote infrastructure.
Our Product Range
All our systems are modular, mobile, and made for long-term performance. Just connect and go.
SUSTAIN BOX™
Portable Backup Power
Compact, plug-and-play system designed for off-grid rural clinics, productive-use hubs, and homes. Delivers uninterrupted power (UPS) wherever it’s needed most.
SUSTAIN EXTENDED™
Scalable Energy for Larger Projects
A full hybrid power plant packed into a 40-ft container. Built to handle larger energy loads for mini-grids, C&I clients, and remote operations.
SUSTAIN COMPACT™
Complete System in 20-ft Container
Your full off-grid solar solution; pre-installed, pre-tested, and packed in a single container. Ideal for grid-challenged areas, quick infrastructure rollouts, and time-sensitive deployments.
SUSTAIN STORAGE™
Turnkey Modular Battery Energy Storage (BESS)
Our flagship storage solution delivers grid-grade performance in the most rugged conditions. Ideal for peak shaving, load shifting, and reliable backup.