Do you need the “why” in “That''s the reason why”? [duplicate]
Good explanation of why it''s optional in this case, although I''m not convinced that reason is the only reasonable antecedent of why. For example, the explanation why is a common usage,
By simply integrating commercial silicon PV panels with supercapacitors in a load circuit, solar energy can be effectively harvested by the supercapacitor. However, in small-scale grid systems, overcharging can become a significant concern even when using assembled supercapacitor blocks.
Supercapacitors, in particular, show promise as a means to balance the demand for power and the fluctuations in charging within solar energy systems. Supercapacitors have been introduced as replacements for battery energy storage in PV systems to overcome the limitations associated with batteries [79, , , , , ].
In recent years, supercapacitor devices have gained significant traction in energy systems due to their enormous power density, competing favorably with conventional energy storage solutions.
Sharma et al. developed a PV and supercapacitor hybrid system that can intelligently manage energy, such as putting loads in a dormant state when insufficient energy is stored to conserve power and automatically activating loads when enough energy is collected and stored . Fig. 7. Photograph of a test bench power plant.
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