Rethinking energy storage: why the Ohms Box is the way forward
The Energy Storage Challenge
Access to reliable electricity is one of the great dividing lines of our time. While many people, especially in developed countries, take it for granted, some regions of the world, especially in African countries, still live with unstable power or none at all. Schools lose teaching hours, hospitals risk lives without refrigeration, and small businesses close at sunset.
The irony is that renewable energy is more available and affordable than ever. The real bottleneck? Storage.
Traditional systems are complicated, expensive, and fragmented. They often require multiple separate components, specialised technicians, and long installation times.
Ohms Box
A New Approach: Compact, Scalable Storage
What if energy storage could be simpler, compact and smarter? Imagine a system that combines durability, safety, and scalability in one unit, something that could be installed easily in a rural village, scaled up for a city block, or adapted for an off-grid business.
This approach to design opens up possibilities for:
- All-in-One Design: Combines high-capacity batteries, power management, and safety features within a single, integrated unit
- Easy Installation: Simplifies deployment processes, reducing both time and costs involved
- Scalable Energy: Modular architecture allows for effortless expansion to meet increasing energy demands
Off-Grid Europe founders Mark and Christiane Kragh with the Ohms Box. Photo by Martin Wagenhan
The Ohms Box, developed by Off-Grid Europe, represents a cutting-edge all-in-one battery energy storage system designed to address these challenges. Its compact, durable, and waterproof design ensures suitability for diverse environments. These may include urban or rural settings, on-grid or off-grid locations. Featuring straightforward installation and modular capacity expansion, the Ohms Box provides an economical means to store and deliver dependable power where it is needed.
Commercial Applications for the Ohms Box
For hotels and C&Is across Africa, power reliability is no longer optional; it’s the backbone of operations. Grid instability leads to costly outages, while diesel generators drain profits and pollute the environment. The Ohms Box changes that equation. Built in Germany, this advanced system manages energy from solar, grid, and generators. An integrated ATS guarantees seamless, uninterrupted electricity by switching sources instantly and intelligently. That means no downtime, no manual intervention, and no compromise on guest or customer experience.
8 Ohms Box installed at a hotel in Cape Verde
The benefits go beyond reliability. The Ohms Box makes solar energy the primary driver of savings, reducing diesel use and grid costs. The flagship Cape Verde hotel project, set for completion in 2025, features a 1.6 MWh Ohms Box combined with 1.2 MWp solar, providing continuous operation powered primarily by clean solar, with grid and generator as backup. This setup is expected to save 750 tons of CO₂ annually and reduce energy costs by €450,000.
Interested in Reliable, Scalable Energy Storage Solutions?
Contact us at ohms-box@offgrideurope.com or visit www.off-grid-europe.com/ohms-box
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