Calculation - Maximum Demand

I can provide a precise calculation template or specific diversity factor tables tailored to your needs. Share public link

What is the ? (Residential, commercial, industrial) Do you have a list of major loads or total square footage? Which electrical standard do you need to follow? Share public link

Note: For multi-phase systems, loads are balanced evenly across Phase A, B, and C. maximum demand calculation

Using specialized software, the same calculation produced a lower maximum demand with better phase balancing: maximum loaded phase at approximately 38A and phase imbalance reduced to 3.48%.

For existing installations, maximum demand can be determined through actual measurement over time. However, this requires data spanning at least one year (or 30 days under specific conditions) to be valid for load calculations. I can provide a precise calculation template or

List the full wattage or amperage of every device within those groups. Step 3: Apply Diversity Factors

Short spikes (inrush current) do not affect MD. Sustained loads do. This is why "peak shaving" with batteries works – you cover the 15-minute window, not the millisecond surge. Which electrical standard do you need to follow

Utility demand meters measure (or sometimes kW with penalty for low PF). A 500 kW load at 0.7 PF is 714 kVA. If you size for 500 kVA, you will trip the main breaker.

Many grid codes penalize consumers who exceed their contracted MD (excess demand penalty, often 1.5x to 2x the normal rate).

Older standards assume high-wattage incandescent/halogen lighting. With LEDs, the calculated MD becomes absurdly low. Conversely, if you use the actual LED wattage (e.g., 10W instead of 100W), you risk failing inspection because regulators still want a minimum "deemed" load per square meter.