Speaker Details

Speaker Company

Will Ayers

Will is chief electrical engineer at Elliott Bay Design Group. For over 20 years he has excelled in vessel electrical design, system studies and software modeling. For the last 12 years he has developed a wide range of hybrid-electric opportunities and played a key role in moving Washington State Ferries toward plug-in hybrid technology.

Presentation

Direct-current decisions: batteries and grids

The presentation will first explore the advantages and disadvantages of different lithium-ion offerings, their chemistries, cell, module and rack form factors, air vs water cooling options, safety enhancements and cable and bus routing. It will then discuss DC vs traditional AC propulsion grids, the benefits of DC, its primary disadvantage in the speed and magnitude of a DC bus fault and different system integrator solutions for the latter.