HELSINKI, Finland – Harvey Gulf has hired Wärtsilä to install its energy storage system (ESS) on four Harvey Energy class LNG-fueled platform supply vessels (PSVs).
The Harvey Power, Harvey Liberty, Harvey Freedom, and Harvey America will each be fitted with a Wärtsilä ESS comprising a closed bus-tie 1360Kw drive with 746 kWh 1100 VDC batteries. The retrofitting project is expected to start in 2021 and be completed in early 2022.
A fifth vessel in this class has already been fitted with a Wärtsilä ESS.
When the upgrade project is completed, all five vessels will be capable of full tri-fuel operation. The PSVs will be capable of closed bus dynamic positioning operation running only one engine augmented by the Wärtsilä ESS. When stationary in the field or in port, they will be able to operate on battery power only, thereby reducing both fuel consumption and exhaust emissions.