PRODUCTS / BESS

EOM I 115 – 115 kWh

C&I BESS cabinet

Plug-and-play installation

  • 110 kWh usable
  • 62,5 kW AC
  • Air cooling
  • VDE-AR-N 4105 / 4110 certified
  • IP55 battery cabinet
  • 88% Round trip Efficiency
Download datasheet
Monbat EOM I-115 battery energy storage cabinet

Technical Specifications

Below, you will find the detailed technical specifications for the Battery Energy Storage System (BESS) EOM I 115.

Cabinet General

Protection class
General IP33, battery cabinet IP55
Operating ambient temperature
-20 °C to +50 °C
Operating humidity
5–90% RH
Operating altitude
< 3,000 m
Ventilation
Fan ventilation
Energy management
Included
Wiring
3L / N / PE — suitable for TN-C-S system
Dimensions (W × L × H), product
1,150 × 1,400 × 2,350 mm
Dimensions (W × L × H), packaging
1,300 × 1,600 × 2,500 mm
Cabinet weight
2,655 kg net
Communication
Modbus-RTU / Modbus-TCP (internal and external)
Round-trip efficiency
≥ 88%
Fire safety system
Aerosol fire suppression, remote warning system via controller

Warranty and support

Up to 8-year warranty

Up to 8-year warranty

Our comprehensive warranty program ensures absolute financial security and long-term asset predictability for your project.

European service

European service

Spares and field-service coverage across EU markets.

Remote monitoring & O&M

Remote monitoring & O&M

Firmware updates and O&M options included in every commercial scope.

Monbat Group heritage

Monbat Group heritage

+65 european battery manufactu

Product rationale

Why engineers pick the EOM I 115

Four design decisions that matter when you’re specifying a mid-size industrial BESS, not marketing prose.

Compact single-housing design

Battery, inverter stack, and EMS controller integrated in one cabinet footprint. No separate inverter enclosure to cable, permit, or cool. Cabinet weight under 3.5 t.

Plug-and-play commissioning

Shipped pre-configured, factory-tested, and ready for grid tie-in. Easy to relocate if the site plan changes. Typical on-site commissioning window: 1–3 weeks once delivered.

External EMS controller

Sits alongside the cabinet for flexibility stacks multiple units in parallel, interfaces with site SCADA via Modbus-RTU/TCP, and runs the full Monbat Energy EMS app suite (Peak Shaving, Self-Consumption, Grid-Supportive Charging, Market Participation).

Built for industrial and grid-serving duty

IP55 battery cabinet protection, –20 °C to +50 °C operating range, integrated fire safety system, and liquid-cooled LFP chemistry specified for the cycling profiles of peak shaving, backup, and trading workloads.

Deployment profile

Where the EOM I 115 fits

Mid-size industrial and commercial sites with peak demand in the 80-150 kW band or smaller sites stacking several revenue streams where 115 kWh sizes cleanly against the daily cycling profile.

Manufacturing

Manufacturing

Peak shaving against demand charges. Backup for critical production lines and server rooms.

Logistics & cold storage

Logistics & cold storage

Nominal capacity
110 kWh usable (BoL)

EV fast-charging forecourts

EV fast-charging forecourts

2-3 simultaneous 110 kW sessions buffered without a grid upgrade.

Commercial buildings

Commercial buildings

Self-consumption optimisation paired with rooftop PV via the optional DC/DC inlet.

Deployed example

A real EOM I 115 deployment.

See if these numbers are realistic for your facility

FAQ EOM I 115 – 115 kWh

Further questions? Let’s personalize the information to your case.

Is the EOM I 115 right for my site size?

The EOM 115 is the smallest of the three all-in-one cabinets. It carries 115 kWh nominal / 110 kWh usable at beginning of life, with 62.5 kW rated AC power –  battery, power conversion, and EMS all inside a single 1,1150 × 1,400 × 2,350 mm housing under 3.0 tonnes. That envelope suits mid-to-larger C&I sites: manufacturing peak shaving, multi-bay fast charging, or stacked self-consumption and trading.  The honest answer is that “right size” is a function of your load profile, not nameplate – send us interval meter data and we’ll size it against your actual demand curve.

Can I deploy multiple 115 cabinets in parallel?

Yes. The system is modular by design – you parallel additional 115 cabinets and the EMS coordinates them as one logical system, so peak shaving, backup, and trading logic apply across the whole installation rather than per cabinet. This is also how you scale later: start with what today’s load needs and add cabinets as the site grows, without re-engineering the EMS layer or replacing the first install.

What grid codes does it meet?

The power conversion stage complies with VDE-AR-N 4105:2018 (low-voltage) and VDE-AR-N 4110:2018 (medium-voltage), operating at 315-450 Vac three-phase, 50/60 Hz, with current THD below 3% at rated power and a continuously adjustable power factor from 0.9 inductive to 0.9 capacitive. The full certification stack – UN 38.3, IEC 62619, UL 1973, UL 9540A, IEC 62477-1 LVD and IEC 61000-6-2/4 EMC on the battery side, plus IEC 62477 and IEC 61000-6-2/-6-4 on the PCS side – is what financing partners and insurers look for, and it’s recognised without additional due diligence.

What's the lead time and commissioning window?

Delivery for a standard  EOM I 115 configuration is typically 8-12 weeks. On-site installation runs 1-3 weeks for a typical C&I facility; because the cabinet ships pre-assembled and factory-tested as a single plug-and-play unit, the disruptive part – grid tie-in and is usually a single shift scheduled outside production hours. The unit arrives at 30% state of charge and is commissioned on site. We coordinate with your facility manager and local DSO from day one.

Is the PV inlet required?

No, the PV connection is optional. When you want it, the EOM I 115 accepts up to 62 kW of solar directly. Because the panels connect to the battery DC bus inside the same housing rather than through a separate AC inverter, you get higher round-trip efficiency on self-consumed solar (system round-trip efficiency is ≥ 88%). You can specify it now or add modules later; if your site has no PV and no plans for it, you simply leave the inlet unpopulated and lose nothing.

possible pairing

The EOM I 115 ships with the Monbat Energy EMS

Hardware is only half the system. The EMS is what decides in real time, against your tariff and your load profile when to charge, when to discharge, when to hold, and which apps to prioritise.

Data centre with light rays

Reconfigurable application suite

The same controller runs Peak Shaving, Self-Consumption Optimisation, Grid-Supportive Charging, Backup, and Market Participation and the mix can be reconfigured as your commercial strategy evolves, without hardware changes.

Other models in the range

The EOM I 115 is one of seven cabinets and containers.

EOM I 260

260 kWh cabinet. Mid-size industrial and commercial sites.

Chemistry
Liquid-cooled LFP
Housing
All-in-one cabinet
Best for
Smaller C&I sites
View EOM I 260 specs

EOM I 1045

1045 kWh cabinet. Large Industrial and commercial sites.

Chemistry
Liquid-cooled LFP
Housing
All-in-one cabinet
Best for
C&I sites
View EOM I 1045 specs

EOM I 1300

1300 kWh cabinet. Large Industrial and commercial sites.

Chemistry
Liquid-cooled LFP
Housing
All-in-one cabinet
Best for
Smaller C&I sites
View EOM I 1300 specs

Ready to size the EOM I 115 against your site?

Book a 30-minute call with a Monbat Energy engineer. We’ll review your load profile, peak demand, grid connection, and critical-load map and tell you honestly whether the EOM I 115 is the right cabinet, or whether you need a different model in the range.

  • Free & no commitment
  • Custom to your use case
  • Expert response within 72h