Green Star is a voluntary notation that takes several factors into account. These include the materials used to construct a yacht, the onboard equipment, and the operations of the yacht herself. It all comes down to lessening impact on the environment, whether through cleaner, less wasteful build practices or avoiding pollution while cruising. Better Place is constructed of carbon fiber and has diesel-electric propulsion for times when under-sail operation isn't practical. Three gensets developing 705 kW comprise the diesel-electric system and will power _Better Place'_s sheet-tensioning devices and other systems when so desired.