Detects components with disproportionate irreversibilities — a struggling turbine, an inefficient heater — that remain hidden in a standard energy analysis.

Compares heterogeneous systems — heat pumps, biomass boilers, reactor architectures — on equal thermodynamic footing.

Reveals whether a system is source-dominated or turbine-dominated before any detailed sizing — pointing to the right leverage point. Foundation of Pinch Analysis.

Quantifies what is irreversibly destroyed — not just rejected. Basis of Exergy-Based Life Cycle Assessment (ELCA) and cogeneration potential analysis.

Exergy correlates with economic value. Electricity > low-temperature heat. Using hydrogen for domestic heating is a strategic heresy — its use in heavy industry is justified.