The ever increasing sustainable energy demand has led to the exploration of various renewable energy sources. This study focuses on the development and analysis of a Zinc Oxide (ZnO)-based Hydroelectric Cell (HEC) for green electricity generation through water splitting. Unlike conventional solar cells and dry cells, the ZnO-based HEC offers an eco-friendly and cost-effective solution. The cell operates by splitting water molecules into OH- and H + ions using a non-photocatalytic process at ambient temperature, with Zn(-) and Ag(+) electrodes facilitating the redox reactions. The research investigates the effects of lithium (Li) and manganese (Mn) doping in ZnO, using a solid-state reaction technique to synthesize the doped samples with a molar ratio of 0.1:0.9. The doped ZnO materials demonstrated enhanced current generation, attributed to induced lattice defects and increased porosity. The results show that Li-ZnO and Mn-ZnO HECs achieve short circuit currents of 6 mA and 5.5 mA, respectively, compared to 5 mA for pure ZnO HEC. This study concludes that Li and Mn doping significantly improves the efficiency of ZnO-based HECs, presenting a promising approach for sustainable and portable electricity generation.