Shaft Generator System
Shaft Generator System
The marine shaft generator system is an energy-saving system that reuses the excess power from the main engine for electricity generation - While the ship is in stable navigation, redundant output power from the main engine is converted into electric power through the shaft generator, supplying electric power to the whole ship.
The core function is to reduce the diesel generators operation time - lowering fuel consumption, maintenance costs, and pollutant emissions, while improving the ship's energy efficiency.
EEXI
4-8% ↓
Expected reduction
CII
3-8% ↓
Expected reduction
Fuel Consumption
2-10% ↓
Expected reduction
Operating Costs
- EU carbon tax
- Diesel Generator maintenance costs
Expected reduction
SGS Working Mode
PTO: Power Take-Off
The SG is driven by the main engine's power to generate electricity, supplying electric power to the whole ship, and replacing or reducing the use of diesel generators.
PTI: Power Take-In
The SG absorbs electric energy from the ship's power grid to drive the propeller, working together with the main engine to propel the ship.
PTH: Power Take-Home
Used for emergency propulsion in the event of a complete main engine failure, ensuring the ship can return to port or maintain basic power.
SGS Composition
Shaft Generator
Frequency Converter
Transformer
Shaft Generator Panel
Case Study
Shipyard Hyundai Heavy Industries Co. Ltd.
Shipyard Capital Gas Ship Management Corp
Vessel Type 174,000 m³ LNG Carrier
Qty. 3
SG Power 4 MW
SG Type PM In-Line Type
Shipyard Flensburger Schiffbaugesellschaft mbh & Co.
Shipyard Searoad Ferries
Vessel Type 3,987 LM RORO
Qty. 1
SG Power 3.7 MW
SG Type Excitation In-Line Type
Shipyard Ningbo Xinle Shipyard
Shipyard X-Press Feeders
Vessel Type 1,264 TEU Container
Qty. 4
SG Power 1.25 MW
SG Type PM In-Line Type
Shipyard Merchants Jinling Shipyard
Shipyard NYK Line
Vessel Type 7,000 Car PCTC
Qty. 4
SG Power 1.24 MW
SG Type Excitation In-Line Type
Shipyard NACKS
Shipyard OOCL
Vessel Type 24,188 TEU Container
Qty. 10
SG Power 4.95 MW
SG Type Excitation In-Line Type
Shipyard Qingdao Beihai Shipyard
Shipyard Compagnie
Vessel Type 210,000 DWT Bulk
Qty. 4
SG Power 1.04 MW
SG Type Excitation In-Line Type