In case you missed it, the topic of fitting KERS on trailers was one of the most interesting presentations at the ComVec Conference in Melbourne, organised by Heavy Vehicle Industry Australia. Here is a similar presentation from earlier this year by the Adgero CEO, Mack Murray, in Amsterdam.
The KERS system concept was introduced in Formula One racing back in 2009:
The pioneer in Australia, first to introduce a hybrid truck, was Hino:
Of course, the trailer mounted system is a simpler technology, quite different from the hybrid trucks we see working in Australia and around the world. Here is the Volvo hybrid working in the garbage industry in Rotterdam: