ESS Indoor Solutions

Battery power, built for the room next door.

Compact, fire-rated energy storage cabinets designed to live inside your building — cutting demand charges and keeping critical loads running, without a container in the parking lot.

BMS Online
Charging
Temp
24°C
State of Charge
71%
Footprint
1.2 m²
Chemistry
LFP
Fire-rated cabinet enclosure
IP54-rated for indoor plant rooms
Remote monitoring & alerts
Modular — scale in place
Why indoor ESS

Flatten your peak, cut the demand charge.

Indoor ESS cabinets sit right beside your switchgear, releasing stored charge the moment your building's demand spikes — so the utility meter never sees the peak.

Grid demand (no ESS)
With TerraVolt indoor ESS
Demand-charge savings
↓ 30–45%
Typical peak demand reduction
< 20ms
Response time to a load spike
1.2 m²
Footprint per storage module
Built for the plant room

Designed to disappear into your building.

No container, no outdoor pad, no separate cooling plant — the whole system is sized to sit inside existing mechanical or electrical rooms.

Compact footprint

Cabinet modules stack to fit existing plant rooms and electrical closets, sized in square metres, not shipping containers.

Safe by design

Cell-level thermal monitoring, fire-rated enclosures, and automatic isolation keep the system safe for occupied buildings.

Silent, passive cooling

Air or liquid-cooled units rated for near-silent operation, so the cabinet can sit beside occupied space.

Scalable in place

Add capacity module by module as your load grows, without re-engineering the room or the switchgear.

Remote monitoring

Cloud dashboard and alerting flags cell imbalance or performance drift before it becomes downtime.

Seamless backup

Switches to stored power in milliseconds during an outage — critical loads never see the interruption.

The process

From site survey to a system that runs itself.

Cabinet installation
01

Site assessment

We survey your plant room, review your load profile and demand-charge structure, and confirm space, ventilation, and electrical access.

02

System sizing & design

Battery capacity and inverter sizing are matched to your actual peak-shaving target and backup runtime requirement.

03

Cabinet installation

Pre-assembled cabinets are positioned and wired into your existing switchgear with minimal disruption to building operations.

04

Commissioning & monitoring

The system is tested against real load conditions, then handed over with remote monitoring live from day one.

Where it fits

Anywhere an outdoor container isn't an option.

Commercial towers & malls
Hospitals & healthcare
Hotels & hospitality
Data centres & server rooms
Manufacturing facilities
Specifications

The numbers facility teams ask for first.

Capacity range50 kWh – 2 MWh per room
Cell chemistryLithium Iron Phosphate (LFP)
Footprint per module1.2 m² floor area
Enclosure ratingIP54, fire-rated cabinet
CoolingForced-air or liquid-cooled
Response time< 20 milliseconds
MonitoringCloud dashboard, SMS/email alerts
Warranty10-year performance warranty
Facility teams

Trusted by the people who manage the building.

★★★★★

Our demand charge dropped noticeably within the first billing cycle. The cabinet fit straight into our existing electrical room.

Facilities Manager — commercial tower, Dubai
★★★★★

We needed backup for critical care equipment without adding a generator yard. This solved it indoors, quietly.

Engineering Lead — private hospital
★★★★★

Installation barely disrupted hotel operations, and the monitoring dashboard already flagged one cell issue before it mattered.

Chief Engineer — hospitality group
Questions

What facility teams ask before installing.

Most rooms with standard HVAC or ventilation are sufficient for smaller systems; larger installations may use a dedicated forced-air or liquid-cooling loop, sized during the site assessment.

Yes — the cabinets use fire-rated enclosures, cell-level thermal monitoring, and automatic isolation, and are designed to meet indoor fire-safety codes for occupied buildings.

Yes — the system is modular, so additional cabinets can be added to the same room and integrated into the existing switchgear and monitoring setup.

We review 12 months of your utility billing data alongside your load profile to model the achievable peak reduction before you commit to a system size.

Find out what your building's demand charge could look like.

Free load assessment using your own utility data — no generic sizing.

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