11. This has led to substitution of more valuable high-exergy energy carriers with low-exergy energy carriers, when possible. 12. Electrolysis is an important technology for the production of hydrogen to be used as an energy carrier . 13. Large electric fields in MOSFETs imply the presence of high-energy carriers , referred to as "'hot carriers "' . 14. Some investigate the prospect of the entire energy system ( all energy carriers ) being fully renewable too. 15. In an other study, the autofluorescence of NAPH, an energy carrier in cells was assessed as an indirect indicator. 16. :: Note that hydrogen could " potentially " be used for energy storage as well as an energy carrier . 17. Finally, urine can also be used as a basis to generate hydrogen ( which is an energy carrier ). 18. Ammonia can be further used as a flexible chemical as a fertilizer, chemical commodity, de-NOx agent and energy carrier . 19. This allows for free energy carriers in the conduction and valence bands thereby allowing greater conversion of photons to electrons. 20. Production of energy carriers : conversion of solar energy into chemical fuels that can be stored longterm and transported long-range.
