2.3 Energy consumption
The modern steam engine has a potential to offer low energy consumption both as a self contained stand alone system as well as a bottoming cycles in hybrid systems. The main reason for that is the high part load efficiency. In almost all applications ( automotive and stationary ) part load efficiency is more significant than full load efficiency. The advantages of high part load efficiency will be especially pronounced in small scale distributed autonomous off-grid CHP (Combined Heat and Power) and most mobile applications. RANOTOR R&D Corp. is expected to achieve about 32 % at part load in a modern steam engine, which is almost 3 times higher efficiency than a conventional ICE operating at part load.

2.4 Investment costs and power density
The power density for a modern SSSP can be very high (1200 kW/litre displacement volume ). Besides high power density for the steam engine proper also compact heat exchanger approach for the steam generator and the condenser will together imply low weight to power ratio ( 0.5 kg/ kW peak power) for the complete SSSP, and hence a competitive price ( $/kW peak power ) is expected. Further more , by only designing and supplying different burners the same basic SSSP system can be used at many different markets depending on the local fuel supply No after treatment of the exhaust gas is necessary. Silent and vibration free, that is, can be integrated close to the user without mufflers and suspensions