Compare the service rather than the label on the technology — Physics & Environmental Science

A resource comparison needs a common delivered service. Fuel input energy is not identical to electricity delivered, installed capacity is not annual generation, and capacity factor is not conversion efficiency. Storage shifts energy through time with losses and operating limits; it cannot remove a persistent net energy deficit. Record the boundary and timing requirement before ranking options.

Water, minerals and soil require their own stock/flow accounts. An aquifer can receive recharge while losing stored water if pumping and discharge are larger. Ore grade and recovery fraction multiply to determine recovered material. Soil function depends on organisms, pore structure and formation as well as mineral content, so erosion or compaction can matter without changing every chemical constituent.

Life-cycle reasoning separates initial production from recurring use and end-of-life. A reusable object can need enough comparable uses to offset its initial burden, but maintenance, loss and lifespan change the threshold. One energy break-even does not establish every environmental advantage. Show sensitivity and distribution of costs/benefits so families can assess both the evidence and the values behind a choice.