Sermatec SMT-ESS-L20CB-4888CE is a containerized LFP battery energy storage system with 4.888 MWh nominal energy and 2.5 MW rated DC power. It is a DC block with liquid cooling, uses 306 Ah prismatic cells, and weighs 42 tonnes (92,594 lb).
Use Cases
Use in front of the meter is consistent with the specifications of Sermatec SMT-ESS-L20CB-4888CE. By energy capacity, it belongs to the utility-scale class. Its supported protocols include IEC 61850, used in utility control systems.
Capabilities
A duration of about 1.96 h at full power, calculated from 4.888 MWh and 2.5 MW, makes Sermatec SMT-ESS-L20CB-4888CE a candidate for peak shaving, cutting the power drawn from the grid at peak times, and indicates grid services, support for the operation of the electricity network. Its DC block connects through a separate inverter. That configuration points to renewable colocation, storing output from a wind or solar plant on the same site.
Nominal energy
4.89MWh
Rated DC power
2.5MW
What does this system typically cost?
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Energy & Power
Architecture
DC Side
AC Side
Physical & Footprint
Battery Cells
Lifespan
Protection
Full Specification Sheet
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Plant Round-Trip Efficiency
The calculator estimates the full "plant" round-trip efficiency (RTE) at the point of interconnection. Some values are pre-blocked depending on information on a particular ESS. The rows that are marked "each way" are one-way efficiencies; they are applied on charge and again on discharge. We then square them. To enter a bundled PCS efficiency value, use its rated-power value, not peak. If the PCS skid already includes the LV/MV transformer, set Transformer LV/MV to 100 % so those losses are not counted twice.
Site Space Required
Shared: one 3 m aisle serves both neighbours. Dedicated: each unit keeps its own 3 m, so gaps double to 6 m.
Single unit — matches the stored area_sqm convention.
More Sermatec Systems
4| Compare | Logo | Vendor | System | Energy | Power | Duration | Battery Cell | Open |
|---|---|---|---|---|---|---|---|---|
| Sermatec | SMT-ESS-L20CB-5015CE-CDC Block · 20 ft container | 5.02MWh | 2.51MWAC | — | LFP314 Ah · Prismatic | |||
| Sermatec | SMT-ESS-L20CB-5015CB-SDC Block · 20 ft container | 5.02MWh | 2.51MWAC | — | LFP314 Ah · Prismatic | |||
| Sermatec | SMT-ESS-L20CB-4888CEDC Block · 20 ft container | 4.89MWh | 2.5MWDC | — | LFP306 Ah · Prismatic | |||
| Sermatec | EASYCUBE Series 261kWh SMT-ESS-CUBE261CEAC Block · cabinet | 0.26MWh | 0.13MWAC | 2h | LFP314 Ah · Prismatic |
About the Vendor
Founded in 2017, Sermatec is based in Shanghai, China, and makes energy storage systems for global markets. The company says it has delivered more than 15 GWh of systems worldwide, and its current manufacturing base includes a 10 GWh container energy storage system integration and test line.
How to Read the Product Page
This profile of SMT-ESS-L20CB-4888CE by Sermatec is assembled exclusively from public data to support early-stage screening and requires additional due diligence.
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