new plants are using high pressure boilers up to bar and their electricity surplus has grown considerably in a very competitive setting however about per cent of the mills still use bar boilers and other sugar plant equipment produces less surplus power actually such internal combustion motors which can work on an ottocycle may be of a smaller size than those of conventional trucks using diesel oil since the truck wheels are driven by very high torque electric motors the smaller internal combustion motors have lower torque requirements than the present diesel motors hybrids are particularly appropriate for shorthaul and stopandgo transportation and as battery technologies improve hybrid trucks will also be able to work as plugins using offpeak power generated at the sugar mill