*5.6. Other Energy Systems*

Some other energy systems that were less popular or not considered as ecologicaldistributed energy generation systems have to be mentioned—especially geothermal and small nuclear systems.


bricks, combined in a larger complex. There are also plans to construct tiny selfcontained units for distant locations. SMRs are viewed as far more manageable than large ones, especially in terms of costs. Another reason for interest in SMRs is that they may be located in closed coal-fired power plants. "The World Nuclear Association outlines the characteristics of an SMR, which include (a) modest power and compact architecture; (b) modularity of construction; and (c) the possibility for sub-grade siting of the reactor unit, which provides better protection from natural or man-made risks". Once, the IBM engineers had believed that the world needed five computers a year. They were wrong. Who knows, maybe the SMR for energy generation will be the same for which the Apple II was for the information revolution and will be used instead of classic high pollutive coal power plants in Poland.

### *5.7. Scenarios for Renewable Energy Sources Development in Poland*

Based on the information above and discussion with experts, the following main scenarios for Poland could be drawn:

