Most of these simulation tools forecasting duration of up to 10-15 years and thus their calculation formula of R.o.I. to achieve Breakeven Point may most likely fall within that given window time frame (i.e. 10-15 years of simulated forecast). You will physically know (not virtually by metaverse) that you are staying ahead when you have assets life span of >30 years (eg. a row of 2MW wind turbines) and 3-6 acres of modular LDES with average service life span of 20-25 years → this would give ample of time to buy-back the invested LDES development project on the field itself. After all, Energy Sector program duration typically fall in the scale of decade/s life span in continuously generating real income for the long term.