FTE for buildings with multiple shifts

Hi Marcio,
We've had several of these and this is a lot trickier. For bikes, you need a peak number that represents the biggest shift with the largest overlap that you have.

For showers and water use, you need daily usage. And obviously everyone is not there all at once. You may have to normalize the FTEs.

If you have shifts working 10 or 12 hours, first you'll need to convert everybody to 8 hours. If you are running 365 days instead of 260 which is what normal FTEs are based on, you will have to "spread" the FTEs over more days. We take the scheduled days of the shift as a percentage of 365 and then multiply that percentage by the FTE count.

Example: A1 shift of 10 works M-Th 10 hrs and A2 shift of 10 works Fri-Sun 12 hrs.

A1 shift: 10 X 10/8 = 13 FTEs THEN A1 is scheduled for 208 days per year which means 57% of annual 365 day operation which means you have 8 FTEs for that shift.

A2 shift: 10 X 12/8 = 15 FTEs ; scheduled for 157 days a year or 43% which means you have 7 FTEs.

We have a major spreadsheet for this kind of stuff that we use as backup.

These calcs create a scenario where the Pform won't feed either the SScr4.2 or the WEpr1 correctly. Per GBCI, enter your FTEs and visitors to feed the WE form correctly and explain the peak shift issue in the SS form.

Does that help or confuse you further?

Hi Marcio,
Actually we did have a shift overlap and this facility does run 24/7 like yours, I just didn't include the other two shifts (N1 and N2) in my response to you. I thought it was confusing enough. Remember all of this is about trying to make your situation seem like a "normal" office worker FTE situation which is based on 8 hrs a day and 260 days per year.

The peak for bikes is determined by using the two shifts with the biggest overlap.That's pretty easy to determine. But that is not the same as the numbers you use for daily water use.

Notice there are two adjustments in my examples above:
The first one is to make your FTEs all consistent with 8 hour shifts. A straight multiplication of # of staff times the hours actually work divided by 8. Once you do this, you won't have to worry about the catch up Saturday because it will be "normalized" out. Your FTE numbers for each shift should drop slightly from your actual staff number because of this.

The second calculation deals with the fact that they don't work 260 days per year which is what the normal baselines are geared for. You will be putting down 365 days of operation. So you will divide their days of operation by 365 to get a percentage of time worked and then multiply the normalized FTE number of each shift by the % of days worked to arrive at your total "FTES" for the WE credits.