# Maximum Demand Formula, Calculation & MD Calculator

### Maximum demand calculator:

Enter the Peak Operating Load for 30 minutes’ block and power factor between 0 to 1, then press the calculate button to get the Maximum demand in kVA.

 Enter Peak Operating Load: kW Enter Power Factor: Maximum Demand: kVA

### Maximum demand Calculation:

The maximum demand in kVA is nothing but a peak operating load (maximum load) in kW of the consumer for the specific interval divided by the operating power factor. The interval will be defined by your electricity provider. Hence, the maximum demand formula can be written as,

Maximum demand in kVA = Peak Load in kW / Power factor

In India, Maharashtra state MSEB has 30 minutes’ block, which means, the continuous peak demand will be calculated within any 30 minutes.  Gujarat has 15 minutes and 30 minutes’ block.

Note that the maximum demand will be calculated from kVA only.

Example:

Now you are running 5 numbers of 5.5 kW motor @ 90% of the load with 0.86 pf. Calculate the maximum demand.

Peak Load = 5 * 5.5 * 0.9 = 24.75kW

Maximum demand = Peak load / power factor

=24.75 / 0.86

= 28.77kVA

Look at the table of India’s all-state maximum demand charges per kVA. The penalty is applicable when the maximum demand exceeds the contracted demands.

 Maximum Demand Charges State MD Charges (INR Per kVA) Penalty (%) Telangana 390 150 Tamilnadu 350 130 Kerala 300 130 Karnataka 275 200 Maharashtra 150 150 Pondicherry 300 200 Andhra Pradesh 475 150 Assam 375 120 Bihar 330 NA Chandigarh 300 120 Chhattisgarh 350 115 Delhi 350 130 Goa 200 NA Gujarat 360 200 Haryana 750 NA Himachal Pradesh 400 NA Jammu and Kashmir 135 NA Jharkhand 400 NA Madhya Pradesh 310 120 Odisha 250 NA Punjab 179 250/kVA Rajasthan 270 NA Sikkim 555 NA Uttar Pradesh 340 NA Uttarakhand 360 NA West Bengal 384 200 NA- Not Available
Learn More:   RPM to G Force Calculator, Formula, RPM to G Force Calculation

### How to reduce Maximum demand:?

• Maintain power factor near to unity. Since the power factor is inversely proportional to the maximum demand. Hence by increasing power factor, the maximum demand will be reduced.
• Install Speed driver.
• Optimize the single load. Example, you have two motors which is operated at 50% of load, here you can cut off one motor and shift the load to a single motor. By the way, we can reduce 30% of the load.