Naval architecture firm Glosten and ABB have joined forces to develop a methanol-hybrid ship assist tug design that provides operators with a viable path to carbon-neutral operations while minimizing operating costs.
Referred to as the SA-100, the 100-foot ASD harbor tug is propelled by two methanol- compatible CAT 3512E gensets powering electrically driven L-drives.
The gensets are complemented by battery banks for zero-emission operation when transiting, peak shaving during general operation, and as boost for achieving the tug’s peak bollard pull of 90 short tons.
The SA-100 was also designed to measure under 100 gross registered tons.
We had three primary design objectives in developing this tug—all intended to benefit the owner/operator. First, to provide assurance of regulatory compliance and future adaptability; second, to achieve meaningful improvement in environmental performance; and lastly, to control OpEx costs such that assist services can still be offered at competitive rates
said Peter Soles of Glosten, who leads the conceptual development of the firm’s tug designs.
