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COGENERATION

18 MW Biomass-Fired Extraction STG — 11 kV District Energy Cogeneration Plant SLD

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UPDATED 2026-09-27
TYPESld
USE-CASECogeneration Plant Sld
EXAMPLE18 MW Biomass-Fired Extraction STG — 11 kV District Energy Cogeneration Plant SLD
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CASE ANALYSIS

Scenario

An 18 MW biomass-fired extraction steam turbine generator supplies an 11 kV generator bus, steps up to 66 kV for utility interconnection, and feeds 400 V auxiliary loads including fans, pumps, and district energy equipment.

Key decisions

  • Dedicated generator breaker isolates the STG while keeping the 11 kV bus energized
  • Step-up transformer connects the 11 kV generator bus to the 66 kV utility grid
  • Auxiliary transformer and 400 V bus supply house loads independent of the main generation path
  • Utility interconnection meter provides export/import energy accounting

When to reuse this

Reusable for biomass, waste-to-energy, or combined heat and power plants with a prime-mover generator, utility interconnection, and auxiliary power distribution.

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