b'power necessary to eff ect the energy transfer isThis also includes all the necessary hardware signifi cantly less than the peak power necessarytoaccommodatethefactthatthevesselThe all-electric to charge the batteries on the vessel.By storinglocation will vary greatly due to the tide andsystem allows the energy on the shore and transferring it rapidlyenvironmental forces on the vessel.Although to the vessel, the operation of the vessel willfunctionally independent from the shore-basedferry to transit not place an excessive burden on the utility toenergy storage system, the ASCS is consideredbetween terminals manage peak loads. part of the shore-based supply.and islands using Theoperationofanall-electricferrydetailsThese systems have signifi cant independence threeareasthatare,functionally,relativelyfromeachother,butarerequiredtoworkenergy stored in independent from each other.togetherinacoordinatedfashion.Anpropulsion batteries.important strength of the design is the nature SHORE ELECTRICAL SYSTEM (SES) oftheseinterfaces. Byrecognizingthese TheSESisthesystemtostoreenergyonindependent functions they become relatively theshorefortransfertothevesselwhileeasytotestandverify.Whendeliveringmajorstrengthinmaintainingaschedule theship-to-shoremainpowerconnectionintegratedsystems,Thrustmasteranditsand in being able to diagnose problems.The is connected. partners have found that the equipment shouldabilitytoquicklyandeasilydiagnose be built to test at every level.Beyond this theproblemsiscritical,asitdrasticallyreduces VESSEL ELECTRICAL SYSTEM (VES) equipment should be fault tolerant.Usually,thetimeneededforrepairs.Subsequently, The VES is the system to utilize the energyaleveloffaulttoleranceisrequiredbythethose problems do not impair the operation on the vessel to power the propulsion and allowners and the U.S. Coast Guard.A singleofthevessel,impacttoschedule,orcause other loads necessary for ferry operation. failureonavesselshouldnotdisableitscommercial consequences.propulsion. This is evident and included in the AUTOMATIC SHORE CONNECTIONtechniques used for load sharing between theInnextmonthsissue,wellreviewdetails SYSTEM (ASCS) various battery banks.The ability to utilize aofthissystemincludingconnectingfrom The ASCS is the equipment necessary to makesignifi cant portion of the energy storage systemvessel to shore, main power charging transfer, a safe and efficient connection in a short time.even when there has been a failure is seen as acharging the vessel batteries, and more. IMPROVE YOUR OPERATIONSAutomatic interceptor trim tab systems.Your new fuel saver.Our ACTIVE interceptor system lowers roll and slamming by up to 50%. It also reduces resistance. That means lower fuel consumption and less CO emissions. Easy to install, easy to operate. PremiumBENEFITStechnology at affordable pricing. IMPROVED FUEL ECONOMY, UP TO 25%Made of composite materials for corrosion resistance and optimumFASTER ACCELERATIONperformance, Humphree Interceptor tabs are electric powered (12 or 24 volt)IMPROVED VISIBILITY AND SPEEDand made for a clean transom installation with no aft overhang to contend withLESS ENVIRONMENTAL IMPACTaround docks or gear. For any commercial Vessel, 25 feet and up. UP TO 50% LESS ROLL MOTIONSHUMPHREE CONTACTSSean Berrie Phone: 757 374 9435Brett Marshall Phone: 757 374 9720 www.humphree.comOCTOBER 2021 13 FOGHORN FOCUS: MARINE PROPULSION'