*based on 100 person community (≈ 40 households)* #### Initial Investment Comparison | equipment type | residential (40 units) | commercial/industrial | savings | notes | | -------------- | ---------------------- | --------------------- | ------- | --------------------------------------- | | laundry | | | | | | washers | $32,000 (40 × $800) | $16,000 (2 × $8,000) | 50% | commercial units handle 75-125 lbs/load | | dryers | $28,000 (40 × $700) | $12,000 (2 × $6,000) | 57% | sized to match washer capacity | | cold storage | | | | | | refrigerators | $48,000 (40 × $1,200) | $30,000 (2 × $15,000) | 37% | two walk-in units for redundancy | | freezers | $24,000 (40 × $600) | $20,000 (1 × $20,000) | 17% | single large walk-in freezer | | kitchen | | | | | | dishwashers | $28,000 (40 × $700) | $10,000 (2 × $5,000) | 64% | two commercial units for redundancy | | ranges/ovens | $40,000 (40 × $1,000) | $24,000 (2 × $12,000) | 40% | two commercial cooking stations | | total | $200,000 | $112,000 | 44% | significant initial savings | #### 10-year Total Cost Of Ownership | category | residential (40 units) | commercial/industrial | savings | notes | | ------------------ | ---------------------- | --------------------- | ------- | --------------------------- | | initial investment | $200,000 | $112,000 | 44% | from above | | annual maintenance | $14,000/year | $4,300/year | 69% | lower per-unit maintenance | | energy costs | $28,000/year | $12,000/year | 57% | better energy efficiency | | water costs | $12,000/year | $5,000/year | 58% | more efficient water use | | replacement costs* | $160,000 | $56,000 | 65% | longer commercial lifespans | | 10-year total | $740,000 | $297,000 | 60% | dramatic long-term savings | *replacement costs calculated based on different equipment lifespans (10-12 years residential vs 15-20 years commercial) #### Space Requirements | type | residential total | commercial total | space savings | | ----------------- | ----------------- | ---------------- | ------------- | | laundry | 400 sq ft | 200 sq ft | 50% | | cold storage | 800 sq ft | 400 sq ft | 50% | | kitchen equipment | 1,200 sq ft | 600 sq ft | 50% | | total | 2,400 sq ft | 1,200 sq ft | 50% | #### Labor Time Requirements (hours Per Week) | task | residential model | commercial model | time savings | | ----------- | ----------------- | ---------------- | ------------ | | laundry | 160 hrs | 40 hrs | 75% | | dishwashing | 140 hrs | 30 hrs | 79% | | food prep | 400 hrs | 120 hrs | 70% | | maintenance | 20 hrs | 8 hrs | 60% | | total | 720 hrs | 198 hrs | 72% |