Present time brings stronger interest on emergency power supply systems. One of the most attractive options here is the use of diesel power sets. There are many manufacturers on the market, which produce gensets in unified series without possibility of customised solutions, or these solutions are timely and financially demanding, therefore are not offered as an option. For the reasons explained above becomes the power generator produced to the customer’s specifications more expensive. A cheaper alternative is purchase of used power generator and renovation and tailor made upgrading suited to the respective application purpose.