How To Calculate Maximum Demand

$$MD = \frac\sum (\textAverage Power in Interval)\textNumber of Intervals$$

Unlike "energy consumption" (measured in kWh), which is the total amount of electricity used over time, is the rate of electricity usage (measured in kW or kVA) at its peak.

Group every electrical item into distinct functional categories: Lighting circuits General-purpose power outlets (GPOs) Cooking appliances (ovens, cooktops) HVAC systems (air conditioning, space heating) Dedicated heavy machinery (motors, pumps, EV chargers) Step 2: Convert All Units to Volt-Amperes (VA) how to calculate maximum demand

We have the following kWh readings from a meter at 15-minute steps.

Elara listed every piece of equipment and its power rating (in watts or amps): Utility companies use specific algorithms to capture the

If you are taking real-time meter readings, the demand for the interval is the average of the power factor and load.

Utility companies use specific algorithms to capture the exact moment of peak usage. Typical Diversity Factor (Residential) First 3,000 VA of

The sum of the continuous power ratings of all electrical appliances, outlets, and loads in a facility.

Consult your local regulatory electrical code book to apply the correct multipliers. Typical Diversity Factor (Residential) First 3,000 VA of lighting/sockets 100% (1.0) Remaining lighting/sockets 35% (0.35) Fixed Cooking Appliances 50% (0.50) Intermittent HVAC / Heating 100% of the largest thermal load Step 4: Aggregate and Convert to Amperes

$$MD_\textTotal = \sum (\textConnected Load) \times \textDiversity Factor$$