MWh-scale BESS · ZTT ENERGRID N3
ZTT ENERGRID N3 · 5 MWh BESS battery container
Liquid-cooled LFP battery platform for industrial and MWh-scale energy storage projects.
ENERGRID N3 integrates batteries, BMS, liquid cooling, fire protection and auxiliaries in a container. The DC battery block is combined with PCS, transformers, medium voltage equipment and EMS according to each project architecture.

Storage block for plant-level architecture
N3 is a DC battery container. Project AC power must not be inferred from container energy alone: KES sizes PCS, transformers, MV switchgear, protections and EMS around power, duration and grid-connection requirements.
ENERGRID N3
Large-capacity applications
Engineered for MWh projects
5 MWh per container
High energy density intended to reduce footprint and simplify scaling of large projects.
314 Ah LFP
Architecture based on 314 Ah LFP cells and BMS supervision/balancing.
Liquid cooling
ZTT describes thermal management designed to reduce temperature differences across the system.
Modular architecture
The battery container can be paired with different PCS/MV arrangements according to power, duration and strategy.
ENERGRID N3
Multi-layer safety for containerised storage
ZTT documentation describes three-level BMS, coordination with fire protection and PCS, IP54 enclosure protection, flammable-gas monitoring and fire suppression/water-spray systems for the N3 platform.
Plant-level EMS
EMS coordinates setpoints, monitoring and charge/discharge strategy at plant level and can integrate renewable production, market signals, grid constraints and customer operating objectives.
PCS and MV are sized separately
N3 is the storage block. KES defines PCS, MV/LV, RMU/switchgear, transformers and operating strategy around the project. A ZTT proposal prepared for KES for Barcelona used a project-specific 4.59 MWh configuration with a 1,250 kVA MV Power Container; that proposal is project-specific and is not presented as the universal N3 rating.
ENERGRID N3
ENERGRID N3 technical data
DC battery
Environment and cooling
Safety and format
Primary technical source: official ZTT Energy Storage Products Introduction brochure and official ENERGRID N3 publication. The KES/ZTT Barcelona proposal is referenced only as a project-specific architecture, not as a universal public datasheet.
Standards listed in the ZTT brochure
ZTT's product brochure lists safety/certification references for the series. Exact document availability must be confirmed for the contracted revision and supply.
- UL 9540 / UL 9540A — listed by ZTT for the series
- IEC 62619 — listed by ZTT
- UL 1973 — listed by ZTT
This list is not treated as automatic Spanish grid approval. Project-specific applicable standards, CE documentation, grid requirements, authority/OCA scope and point-of-connection conditions must be checked.
Complete-system engineering by KES Energy
For MWh projects, KES works from the load profile and business case through single-line architecture, PCS/MV selection, construction, commissioning and EMS strategy.
From 1 MWh to multi-MWh projects
We first define power, duration, cycling and operating strategy. Then we select container count, PCS and medium voltage architecture to avoid over- or under-sizing.
Start with a technical review
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ZTT ENERGRID N3 · 5.0 MWh
