0	0.76048	energy power systems system future use development efficiency 
1	0.14472	temperature combustion heat rate coal flame model fuel 
2	0.0847	hydrogen production water energy electrolysis biodiesel fuel green 
3	0.22389	heat energy thermal system temperature cooling air cycle 
4	0.11447	solar urban heat surface temperature radiation soil climate 
5	0.18914	renewable system vehicles hydropower electric cost energy emissions 
6	0.1777	wind forecasting neural power data model oil networks 
7	0.16017	energy renewable electricity bitcoin capacitor saudi consumption arabia