Skip to content
ENExplore Calculators

Power Demand For Township Calculator

Work out power demand for township instantly with clear inputs, formula shown and shareable results.

About Power Demand For Township Calculator

Connected load is what every appliance would draw if switched on together, which never happens, so a diversity factor of 0.3 to 0.5 gives the actual peak demand. Transformer capacity converts that to apparent power at the expected power factor and adds a margin for growth and for the loss of one transformer in a substation.

Formulas

Peak demand

kW = households x connected load per household x (1 + commercial share) x diversity factor

Transformer capacity

MVA = peak kW / (power factor x 1000) x growth margin

Worked example

With the default values below, Power Demand For Township Calculator returns Peak demand of 15.750. Change any input above and every figure here is recalculated in your browser.

Inputs used

Number of householdsminimum 1
12,000
Connected load per householdminimum 0.1 kW
3 kW
Demand diversity factoraccepts 0.05–1
0.35
Additional commercial and civic loadaccepts 0–100 %
25 %

Results

Peak demand
15.750 MW
Total connected load
45.000 MW
Transformer capacity required
21.000 MVA
Effective demand per household
1.312 kW

Step by step

  1. 1Values used
  2. 2Peak demand
  3. 3Transformer capacity
  4. 4Peak demand= 15.750 MW
  5. 5Total connected load= 45.000 MW
  6. 6Transformer capacity required= 21.000 MVA
  7. 7Effective demand per household= 1.312 kW

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax or compounding frequency into account.
  • Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Preliminary estimate only. Electrical distribution design must be carried out by a qualified engineer to the utility's planning standards.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Preliminary estimate only. Electrical distribution design must be carried out by a qualified engineer to the utility's planning standards.

Frequently Asked Questions

How is the Power Demand For Township figure worked out?

kW = households x connected load per household x (1 + commercial share) x diversity factor. Connected load is what every appliance would draw if switched on together, which never happens, so a diversity factor of 0.3 to 0.5 gives the actual peak demand.

Why is diversity so low for housing?

Because households cook, heat water and use appliances at different times. The larger the number of connections, the lower the diversity factor and the more efficient the network becomes per household.

What values do I need to enter?

This calculator takes 4 inputs: Number of households, Connected load per household, Demand diversity factor, Additional commercial and civic load. The pre-filled defaults are a realistic worked example — replace them with your own site or project figures.

Related Calculators

Power Demand For Township Calculator | Calcrivo