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Operates in Port of Rotterdam, Netherlands

Name: e-Kotug RT AdriaanType: Hybrid TugboatDuty: Harbor TugOwner: Kotug

CASE STUDY: e-Kotug Adriaan

Europe’s first hybrid tugboat

Corvus Specifications Pack:12x 6.5 kWhCapacity: 78 kWhBus Voltage: 600 VDCPartners: Kotug, Aspin Kemp and Associates, Corvus Energy

Adriaan is a retrofit hybrid and retains full propulsion capacity from her diesel driveline. Hybrid mode is used in vessel assist, on and off dock, light transit and loitering.

“We are happy with the first results of the E-KOTUG after its conversion into a hybrid Rotor®Tug” - Daan Merkelbach - Nautical & QHSE Manager of KOTUG International.

RT Adriaan SpecificationsLength LOA: 32mBeam: 12mGross Tonnage: 463Main engines: 3 x Caterpillar 3512 C-HDHybrid System: Xeropoint, Aspin Kemp and AssociatesMotor/Generators: 3x Westinghouse Motor/GeneratorAuxiliary engines: 2 x 250 kW Caterpillar C 9, 1 x 36 kW Caterpillar C 4.4Energy Storage System: 12 x 6.5kWh Corvus Lithium Bollard pull: 84 tonsMaximum speed: 12.5 knots Assist mode 10 knots Transit modeBrake Horsepower: 6884hp

Toll Free (888) 390-7239 • 24 Hour Support (604)227-1932 • corvus-energy.com • info@corvus-energy.com

Corvus Energy manufactures the world’s most durable Energy Storage Systems (ESS). Designed for heavy industrial applications, a Corvus ESS will reduce fuel consumption, maintenance, emissions & increase reliability. Contact us today to learn how energy storage can improve your bottom line:

About Corvus

REV-2014-07-11

Objectives

Solution

Benefits

Corvus’ AT6500 48 volt battery packs, which are built around a nickel-manganese-cobalt-based cell. Unlike lead acid batteries, Corvus’ lithium batteries last up to 10 times longer and have 4 to 10 times more power and energy storage.

• Improved fuel economy • Maintenance savings • Increased usable battery power• A significant reduction in harmful emissions• Less weight on the vessel

• 50% reduce of harmful emissions• For stand-by or for low power operations, electrical energy storage permits the vessel to be operated in noiseless zero emissions mode, with no rotating machinery running• Maintenance savings: Hybrid technology means minimized engine use and more time between engine overhauls and oil and filter changes• Engines run at or near best efficiency, and only when needed for cleaner combustion• Because hybrid technology shares the propulsion load between diesel and electrical sources, it means no unnecessary idling with main engines

For more information on the e-KOTUG vessel visit:

www.kotug.nl

Aspin Kemp & Associates http://www.aka-group.com