Real-World Quantitative Case Studies

Engineering & Financial Deal Teardowns

Detailed mathematical post-mortems and underwriting case studies across solar microgrids, structural fabrication, multi-family real estate, and metabolic science.

Clean Energy Engineering

⚡ Whole-Home 15kWh Off-Grid Solar & Battery Microgrid Teardown

Scenario: Sizing an emergency backup system for a 3,200 sqft residential home with well pump, dual refrigeration, and essential medical circuits during 72-hour grid outages.

Key Underwriting Outputs:

  • Daily Critical Load: 14,200 Wh / day
  • Battery Storage Bank: 16.7 kWh (adjusted for 85% depth-of-discharge)
  • Continuous Inverter Rating: 6,000W Pure Sine Wave (10,000W surge for pump)
  • Solar PV Array: 3,800W array achieving 100% daily recharge in 4.5 peak sun hours
Commercial Trade Estimating

🔥 Structural Steel Beam Fabrication & Welding Bid Teardown

Scenario: Bidding 420 linear feet of 5/16" fillet welds on heavy structural I-beams using 0.045" ER70S-6 MIG solid wire with 75/25 Argon/CO2 shielding gas.

Key Underwriting Outputs:

  • Deposited Weld Metal: 68.4 lbs solid wire required
  • Shielding Gas Consumption: 480 Cubic Feet (16 hours total arc-on time)
  • Shop Labor & Prep: 38.5 total fabrication hours
  • Gross Contract Margin: 36.4% after consumable allocations
Institutional Real Estate

🏢 12-Unit Multi-Family BRRRR Deal Underwriting Teardown

Scenario: Acquiring a distressed $850k apartment complex with $220k renovation budget, raising gross rents from $900/mo to $1,450/mo per unit.

Key Underwriting Outputs:

  • Stabilized After Repair Value (ARV): $1,580,000 (at 6.8% market cap rate)
  • Cash-Out Refi (75% LTV): $1,185,000 (100% capital returned + $115k cash)
  • Post-Refi Net Cash Flow: $3,240 / month ($270/unit/month)
  • Infinite Cash-on-Cash Return on zero remaining capital invested
Health & Sports Science

🧬 16-Week Thermogenic Calorie Deficit & Body Recomposition Teardown

Scenario: Structuring a scientific 500 kcal/day deficit for a 195 lb male targeting 175 lbs (10% target body fat) while maintaining squat/bench strength baseline.

Key Underwriting Outputs:

  • Baseline TDEE: 2,650 kcal/day | Target Intake: 2,150 kcal/day
  • Protein Anchor: 180g / day (0.92g per lb lean mass)
  • Weekly Fat Loss: Exactly 1.02 lbs / week
  • Total 16-Week Fat Loss: 16.4 lbs with zero skeletal muscle mass degradation