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Clet Energies
Auxiliary Systems

The systems that make a turbine a power plant

CLET supplies complete auxiliary packages to Siemens Energy, GE, Mitsubishi Hitachi, Dresser-Rand, MAN and Solar Turbines. Approximately 80 % domestic market share for gas turbines rated at or below 50 MW.

Scope of supply

Nine engineered sub-systems

Designed, manufactured, assembled and commissioned in-house — a single interface from concept drawing to guaranteed noise level.

01

Air intake system

Air filter, anti-icing unit, cooling assembly, silencer, flow guide parts, valves, ductwork and support frames. Multi-stage desert filtration is specified where sand loading demands it.

02

Exhaust system

Straight exhaust duct, three-way damper valve, elbows, exhaust silencer, heat-insulated noise-isolated flue and chimney.

03

Enclosure & ventilation system

Unit enclosure, soundproof doors and windows, overhead crane mount, fire damper, muffler, rainproof assembly, sealing system, fire protection and lighting.

04

Base frame & steel structure

Base skid, support pedestal, container base, piping, enclosures and structural steel supports.

05

Fluid system

Fuel supply, lube oil, cooling medium and hydraulic piping assemblies.

06

Electrical & control system

MCC cabinet, UPS, variable-frequency cabinet, soft starter, excitation and synchronisation protection, HV/LV distribution; PLC, DCS and SCADA monitoring, video surveillance, audio intercom and data acquisition.

07

Noise control

Guaranteed noise level ≤ 85 dB; customised design available on request.

08

Emission control system

Integrated denitrification, dust removal, temperature regulation, plus monitoring and control accessories. In-house SCR catalyst production and flue gas denitrification system integration.

09

Thermal insulation cladding

Insulation wrapping for compressor casing, combustion chamber / burner and turbine casing.

Coverage

Nearly 100 gas turbine models

Domestic Chinese turbines, foreign-brand turbines built in China, and overseas heavy-duty and aeroderivative units.

Chinese-built gas turbines

36 specs & models
AGT7AGT12AGT15AGT25AGT110QD10BQD16/16BQD15AQD30CWRB100WD18QD20QD280AGT-2CGT300FQD70QD128QD185RO/RF110GT25000G50GT25+40ICB33E100E300E600E2100KG5LGT010MLGT004MCGT30QC40MWHGT16ZK2000

Foreign brands built in China

36 specs & models
QY40SGT200SGT300SGT400GE10-1LM2500LM6000TM25009H.01AE64.3AAE94.3AGT13E2SGT600M701JH100M701F4SGT700C40/M100UGT25000UGT6000UGT15000H25TF50FMTU50SGT-A05GT60GT70GT130OP166BSGT800

Overseas heavy-duty & aeroderivative

24 specs & models
SGT100SGT200SGT300SGT400SGT700SGT-A35SGT800SGT5-4000FSGT5-2000ESGT5-9000HLSGT5-8000HH25H80M501M7017HA9ECNovaLT16NovaLT8C200SC600SC1000SMGT6100T5302
International business

Fifteen years of OEM qualification

  1. 2011SIEMENS SGT100–400 · MTU · MDS
  2. 2012–2017SIEMENS SGT700 / SGT800 · Solar Turbines · CAMFIL
  3. 2019GE 6F.03
  4. 2020–2021SIEMENS SGT5-4000F · SGT-A35 · MAN · SHINWA
  5. 2022MHI M701F4
  6. 2024SIEMENS SGT5-8000H
  7. 2025SIEMENS SGT5-2000E · CAPSTONE PGM130 & 350 — qualified supplier
SIEMENSGEMHIMitsubishi HitachiDRESSER-RANDALSTOMMANVericorCapstoneAECCCSSCCASGSJEREHSolar TurbinesToshibaKawasakiOPRACaterpillarSAFRANShinwa

Have a gas turbine package to specify?

Send us the turbine model, site conditions and noise limit. Our engineering team will come back with a system concept.

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