Oketie, W.U. and Aliu , A. 2026. A Systematic Review of Digital Energy Technologies and Data-Driven Systems for U.S. Energy Security and Efficiency. Global Journal of Engineering and Technology Research. 2, 07 (Jul. 2026), 312–318. DOI:https://doi.org/10.65150/EP-gjetr/V2E7/2026-09.