Utility-scale · 2 MW – 10 MW

CTX-B20CTX Block 10 MW · 10 MW / 20.26 MWh · ~2 h

4 × CTX-5000 · 33 kV energy block · Utility & DISCOM storage · IPP solar/wind firming · ancillary services

10 MW / 20.26 MWh energy block: four CTX-5000 containers, 80 racks and 20,160 LFP cells behind four 2.75 MVA transformers and a 33 kV RMU. Sub-100 ms full reversal and IEC 61850 control for wholesale arbitrage, frequency response and black start.

TOBOR CTX-B20 — 4 × CTX-5000 · 33 kV energy blockCTX series · representative image
Power
10 MW
Energy
20.26 MWh
Grid interface
33 kV
Response
< 100 ms
Specification · CTX-B20

Full technical sheet.

Grid interface

  • Continuous max power10,000 kW
  • Grid interface33 kV · 3-phase · 50 Hz
  • Rated MV current175 A (192 A at 11 MVA)
  • Transformation4 × 2.75 MVA · 0.4 / 33 kV · Dyn11
  • PCS80 × 125 kW modules · 8 × 1.25 MW cabinets
  • Reactive capability± 2 MVAr at 10 MW
  • MV switching33 kV RMU · 630 / 1250 A · 25 kA 3 s

Energy storage

  • Nameplate capacity20,257 kWh
  • Containers4 × CTX-5000
  • Battery racks80 (252S1P)
  • LFP cells20,160
  • Usable @ 90% DoD18.23 MWh
  • Design cycle life8,000 cycles

Performance

  • Round-trip efficiency88% at 33 kV
  • Response time< 100 ms full reversal
  • Ramp 0–100%< 200 ms
  • Auxiliary consumption1.5–2.5% of rated
  • Footprint~1,125 m² (45 × 25 m)

Control & interface

  • Battery / energy managementIn-house TOBOR BMS + EMS
  • Power distributionTOBOR PDMS supervisory switching
  • CommunicationsIEC 61850 · Modbus TCP
  • ApplicationsArbitrage · frequency response · black start / islanding

Catalogue values. *Cycle capability depends on depth of discharge, C-rate, temperature and end-of-life criterion. Peak PM efficiency is not whole-system round-trip efficiency. Usable energy and runtime depend on permitted DoD, conversion losses and auxiliaries. Final ratings and compliance follow the approved project-specific offer.

Compatible applications

Where this size fits.

Energy arbitrage

Charge in low-price blocks and discharge into evening peaks. 8,000-cycle LFP and liquid cooling built for daily cycling.

Frequency response & ancillary services

Sub-100 ms full reversal and < 200 ms 0–100% ramp at block level, with IEC 61850 plant control.

Renewable firming

Co-locate with solar or wind to shape output, firm capacity and reduce curtailment at the point of interconnection.

Black start & islanding

Block-level black-start capability with DG-backed auxiliaries, subject to the approved single-line design.

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