Off-Grid Europe
Get in touch
OHMS BOX

Convert sunlight into 24/7 reliable power.

Europe's most advanced All-in-One battery storage system. Built for businesses and communities that cannot afford downtime.

Configure your Ohms Box

By the numbers

  • 265kWh
    LFP storage
    Scalable to MWh
  • 100kVA
    Power conversion
  • 300%
    Surge capacity
  • <10ms
    ATS switch-over
  • 98%
    Efficiency
  • 15yrs
    Service life
INTEGRATED

One container. Everything connected.

The Ohms Box ships fully integrated: 265 kWh of LFP battery storage (scalable to MWH/MVA), a 100 kVA bidirectional power conversion system, an automatic transfer switch, industrial HVAC, and the IoTEM monitoring stack — all wired, tested, and ready to land.

Designed for on-grid, off-grid, and hybrid applications. No bulky setups, no integration risk: a compact, plug-and-play power solution that just works.

One container. Everything connected.

See it in operation.

Three minutes inside the All-in-One battery storage system that powers our deployments — from rural mini-grids to Ukrainian hospitals.

Clicking play loads the video from YouTube and transmits data (including your IP address) to Google. See our Privacy Policy.

ENGINEERED FOR THE FIELD

Heavy starts. Quiet operation. Zero compromises.

300% surge capacity for pumps, compressors, and welders. Sub-10 ms ATS switch-over so blackouts never reach your loads. Industrial HVAC for the dust-and-heat environments where most plant rooms don't exist. Designed once, tested twice, deployed for fifteen years.

  • 300%
    Inrush
  • <10 ms
    Switch-over
  • LFP
    Cells
  • Pfullendorf, DE
    Built
Heavy starts. Quiet operation. Zero compromises.
WHAT MAKES IT UNIQUE

Engineered to remove every reason a system fails.

kWh

265 kWh battery storage

LFP cells. Scalable to MWh capacity by stacking units. Designed for daily cycling.

kVA

100 kVA power conversion

Bidirectional PCS delivers clean, reliable AC. Stable under heavy inrush and fluctuating load.

ATS

Built-in ATS

Automatic transfer between grid, generator, and battery. Sub-10 ms switch-over with zero blackout loss.

HVAC

Industrial HVAC

Handles extreme heat, dust, and humidity — because most of the sites don't have an air-conditioned plant room.

PnP

Plug & play

Pre-configured at the factory and tested before shipping. Install in days, not months.

300%

300% surge ready

Heavy starts — pumps, compressors, welders — without flinching. Highest-quality components throughout.

IoT

IoTEM monitoring

24/7 secure remote monitoring and control. Operators see every data point. Alerts before failures.

ECO

Green & clean

Minimises diesel runtime and maximises renewables — measurable, reportable, and audit-ready.

DE

Made in Germany

Designed, engineered, and assembled in Pfullendorf. Precision-built for a 15-year service life.

MODELS

Four configurations. Same chassis.

Pick the model that matches your loads and your interconnection. All variants share the same enclosure, controls, and IoTEM stack — so installs, training, and spares stay simple.

Classic

50 kVA · 265 kWh · single bi-directional AC input/output · core BESS unit. Entry point for sites that need clean, reliable power without grid or generator integration.

Classic Max

100 kVA · 265 kWh · single bi-directional AC input/output · core BESS unit. Twice the throughput in the same enclosure — for heavier C&I loads.

Classic Pro

100 kVA · 265 kWh · ATS for grid + generator (3 input/output) · seamless transfer between sources. The most-deployed configuration.

Classic Pro Max — ATS + Solar

100 kVA · 265 kWh · ATS + Ampt DC-DC converters for direct PV input. The complete hybrid stack — PV, Grid, Generator and BESS in one box.

Case study — powering Ukraine's recovery.

In times of crisis, reliable power is a lifeline. Two Ohms Boxes deployed with Project NADIYA e.V. now keep Ukrainian hospitals running through grid blackouts.

Clicking play loads the video from YouTube and transmits data (including your IP address) to Google. See our Privacy Policy.

The Ohms Box provides reliable power with under 10 ms response, 98% efficiency, and 300% surge capacity. Built for tough starts and heavy loads, it keeps systems running when others can't.
Off-Grid Europe Engineering
Off-Grid Europe Engineering
Powering a hotel without the diesel.
STORY FROM THE FIELD · CAPE VERDE

Powering a hotel without the diesel.

A flagship Ohms Box install replacing diesel-only backup at a resort in Cape Verde. Quiet for guests, predictable for finance, and clean enough to put on the brochure.

One of a growing portfolio of deployments — alongside Ukrainian hospitals (see the case-study video above) and rural mini-grids across Europe and Africa.

Read the full story
DOCUMENTATION

Datasheets and brochures.

Everything you need for an internal review — specifications, dimensions, deployment patterns, and the hospitality vertical brief.

Ready to size an Ohms Box for your site?

Use the configurator to pick a model, scale, and option set, or talk to an engineer for a tailored quote.

Open the configurator