This report details the electrical load analysis for a 6,525 sq ft home with a ~400A service (96,000 VA capacity; safe continuous ~80% = 320A/76,800 VA). New additions (3 × 1 HP hydraulic motors: 5,760 VA; electric floor heat: 5,760 VA; garage-style heater: 5,760 VA; total 17,280 VA) are assigned to Panel B. Calculations use NEC 220.82 optional method.
| Panel/Feeder |
Connected Load (VA) |
Demanded Load Breakdown |
Demanded Load (VA) |
Demanded Amps @ 240V |
% of Safe Continuous Capacity (160A/Feeder) |
Notes |
| Panel B (200A Feeder) |
68,960 (Lighting: 15,000; Small/Laundry: 4,500; Fixed: 49,460 incl. new additions) |
First 10k @100%: 10,000; Remainder @40%: 23,584; +HVAC @100%: 2,160 |
35,744 |
149 |
93% |
Marginal; code-compliant but limited growth room. |
| Panels A+C (200A Feeder) |
82,233 (Lighting: 4,575; Small/Laundry: 9,000; Fixed: 68,658) |
First 10k @100%: 10,000; Remainder @40%: 28,893 |
38,893 |
162 |
101% |
Overloaded; exceeds 80% rule—recommend balancing or upgrade. |
| Whole Home (400A Service) |
151,193 |
First 10k @100%: 10,000; Remainder @40%: 56,477; +HVAC @100%: 2,160 |
68,637 |
286 |
89% (of 320A safe) |
Marginal overall; sufficient per code but monitor peaks. |
| Panel/Feeder |
Key Continuous Loads |
Estimated Continuous VA |
Continuous Amps @ 240V |
% of Feeder Capacity (200A) |
Notes |
| Panel B |
Hot tub (11,520 VA); Lifebreath HVAC (2,160 VA); New floor heat (5,760 VA); New garage heater (5,760 VA) |
~25,200 (sum; assumes simultaneous) |
105 |
53% |
Safe; but if all run >3h (e.g., winter), approaches 80% limit—use timers. |
| Panels A+C |
Steam shower (10,080 VA; if long use); Heat tape (4,800 VA); Dehumidifiers (1,000 VA) |
~15,880 (sum) |
66 |
33% |
Safe; lower due to intermittent nature of most A+C loads. |
| Whole Home |
All above + minor others (e.g., AV racks if always-on ~8,400 VA) |
~49,480 |
206 |
52% (of 400A) |
Safe overall; focus on balancing to prevent feeder overload. |
| Panel/Feeder |
Assumed Peak Scenario |
Peak Load Breakdown |
Peak VA Estimate |
Peak Amps @ 240V |
Risk Level |
Notes |
| Panel B |
Winter: Hot tub + HVAC + new heaters/floor heat + elevator/motors + garage doors + laundry + lighting/receptacles |
Hot tub/HVAC/heat additions: ~25,200; Motors/elevator: ~11,760; Other fixed/small: ~10,500; Lighting: 15,000 |
~62,460 (~90% of connected) |
260 |
High (130% of 200A—potential trip) |
Over feeder rating if all simultaneous; mitigate with load shedding (e.g., smart breakers). |
| Panels A+C |
Party: Full kitchen (range/oven/dishwashers/fridges ~25,000) + steam shower + heat tape + AV/shades + laundry + lighting |
Kitchen/appliances: ~35,000; Shower/heat tape: ~15,000; AV/other fixed: ~10,000; Small/laundry: 9,000; Lighting: 4,575 |
~73,575 (~90% of connected) |
307 |
Very High (153% of 200A—likely trip) |
Already risky; peaks could exceed even without additions—urgent balancing needed. |
| Whole Home |
Combined peaks (e.g., full house use) |
Sum of above |
~136,035 |
567 |
High (141% of 400A—service overload) |
Unlikely all at once, but highlights need for monitoring (e.g., energy management system). |