Membrane Economics, Energy & EDI Deep Dive Two-part reference. Part 1 covers SEC/LCOW/lifecycle. Part 2 covers EDI process, KPIs, failure modes, and regulatory context for produced water and pharmaceutical UPW. Convention markers: - — likely bug or incorrect assumption in calling code - — enhancement opportunity (new alert, new field, new module) --- PART 1 — Energy & Economics §1 — Specific Energy Consumption (SEC) Operator-facing formula: where = high-pressure-pump draw (kW), = power recovered by ERD (kW), in m³/h. For brackish/tertiary systems without ERD the second term is zero. Engineeri…