Memorize these. Derivation is optional. Application is mandatory. Problem: You need backup power for a remote telecom tower. Two options:
Master Time, Money, and Decision-Making in Half the Time Chapter 1: The Accelerated Mindset – Why Engineering + Economics Wins You’re an engineer. You solve problems. But in the real world, the best technical solution isn’t always the right one — unless it’s also profitable. engineering economy excelerated ebook
| | Solar + Battery | Diesel Gen | |--------------|----------------|-------------| | Initial Cost | $25,000 | $8,000 | | Annual O&M | $500 | $2,500 | | Fuel cost | $0 | $3,000 (escalating 5%/yr) | | Lifespan | 10 years | 5 years (then replace) | | Salvage value | $2,000 | $500 | | MARR (hurdle rate) | 8% | 8% | Memorize these