# How is the load factor of a building calculated?

Table of Contents

## How is the load factor of a building calculated?

In short, the load factor is the percentage of space on a floor or building that is not usable and is expressed using the simple formula of rentable area divided by useable area minus one. For example, if an office building has 200,000 square feet of useable square and a total rentable area of 220,000 square feet then…

## How is the occupant load of an area calculated?

Let us take a look at how the occupant load is calculated using each method. To calculate the occupant load for an area without fixed seating, the code says to compute the area of the room or space at a rate of one occupant per unit of area using the occupant load factor found in Table 1004.1.2.

## How to calculate total connected load for dwelling units?

1 Determine total connected load [220.84 (C)]. Add the following loads (from all the dwelling units) together, then apply the Table 220.84 demand factor: 3VA per sq ft for 2 Calculate the load. Apply the demand factor from Table 220.84 to the total connected load (Step 1). 3 Size feeder and service conductors.

## How to calculate electrical load factor for June?

For example, if your energy use for June is 6,000 kWh and your estimated peak demand is 30 kW, multiply the number of hours in June — 30 x 24 = 720 — by the peak demand to get 21,600. Your energy use of 6,000 kWh divided by 21,600 gives a load factor of 0.28 or 28 percent.

## How is the occupant load factor based on function?

The occupant load factor is based on function. Note that it is NOT based on the occupancy group classification. When this table is used, it results in an occupant load for which a room, space and building is designed to. Once the occupant load is established, the means of egress is then designed for at least this number.

1 Determine total connected load [220.84 (C)]. Add the following loads (from all the dwelling units) together, then apply the Table 220.84 demand factor: 3VA per sq ft for 2 Calculate the load. Apply the demand factor from Table 220.84 to the total connected load (Step 1). 3 Size feeder and service conductors.

## How is the load factor of an electrical system calculated?

How to Calculate Load Factor? The Load Factor is calculated by dividing the total consumption of electrical energy (kWh) for a given specific time of period to the product of maximum demand (kW) and the number of hours in that period. The Load Factor can be calculated over any time of period.

## How to calculate multifamily dwelling unit service and feeder?

1 Step 1: Determine total connected load [220.84 (C)]. Add the following loads (from all the dwelling units) together,… 2 Step 2: Calculate the load. Apply the demand factor from Table 220.84 to the total connected load (Step 1). You can… 3 Step 3: Size feeder and service conductors. More