Island mode | EnBrilion

Keep critical power on

even when the grid is off

EnBrilion island mode makes your site an independent microgrid during outages. Safe, seamless and scalable.

Always On, Even Off-Grid

Island mode means your site can run as its own power system when the grid goes down. With battery storage, control and optional renewables you keep critical loads on and reconnect smoothly when the grid returns.

How island mode works
Five simple steps from grid power to independent operation and back again.

Normal operation
Your site runs on the grid and the battery optimises cost and readiness.

Grid isolated
The ATS disconnects the site safely when an outage is detected.

Battery start
The BESS energises the local system and stabilises voltage and frequency.

Independent power
Critical loads keep running as your site operates as a microgrid.

Seamless re-sync
The EMS matches grid conditions and reconnects without interruption.

The building blocks of island mode

BESS cabinets

Safe LFP chemistry, immersion cooling, cell monitoring and integrated fire suppression. Robust IP55 steel enclosures designed for demanding environments.

EnAqua 130kW/261kWh BESS

PCS / Inverter

Grid-forming and grid-following capability for smooth black start, stable operation and seamless re-sync. Sized to match your site’s power needs.

EMS controller

Smart energy management with islanding logic. Prioritises critical loads, optimises generator use and integrates solar, wind or EV charging. Remote monitoring via our partners Aire and Checkwatt.

ATS and switchgear

Fast, safe isolation and reconnection to the grid. Fully compliant with Nordic grid codes.

Island Mode for Critical Infrastructure

EnBrilion island mode keeps hospitals, data centers, telecom networks, industry and logistics running even during power outages. As a resilient microgrid solution, it safeguards the critical infrastructure society depends on.

Hospitals and care

Keep wards, labs and IT systems running.

Data centers and IT

Protect uptime and equipment through grid events.

Telecom and broadcast

Ensure base stations and networks stay online.

Industry and logistics

Avoid production stops and costly downtime.

Public safety hubs

Maintain operations at emergency services and shelters.

Remote and weak grid sites

Farms, islands or construction areas where stability is limited.

Why island mode with EnBrilion

Continuity – seamless transfer without disruption or downtime
Safety – LFP chemistry, immersion cooling, fire suppression and IP55 steel enclosures
Lower emissions – fewer generator hours and more renewable integration
Scalable and smart – start small, expand as loads grow and let the EMS manage priorities automatically

FAQ — Island Mode (Ö-drift)

What is island mode and why do I need it?
Island mode lets your site run as its own microgrid during an outage. Power stays on for your critical loads until the grid is back.
Do solar panels work during a power outage?
Not on their own. With EnBrilion’s battery, controller and ATS, solar can keep producing during island mode.
How fast does the switch happen?
Instantly and automatically. You won’t notice the transition when the grid fails.
How big should the battery be?
We size it to match your critical loads and runtime needs, with room to expand later.
Can I keep using my generator?
Yes. The EMS coordinates generator use, while the battery cuts fuel, noise and wear.
Is it safe?
Yes. Our systems use LFP chemistry, liquid cooling, fire suppression and IP55 steel enclosures with cell-level monitoring.
What about regulations in Sweden?
All systems are designed and commissioned to Nordic and EU standards and local grid codes.
Can an island-mode system save money too?
Yes. In normal mode the battery reduces peaks, optimises renewables and can join flexibility markets.

Design Your Resilient Microgrid

Grid outages shouldn’t mean downtime. With EnBrilion’s safe, scalable energy storage and island mode control, your site stays powered when the grid does not. Let’s discuss your project.