Topic: LEAP TRAININGSubscribe | Previous | Next
Nfamory Camara 3/23/2018
Hello guys,
thanks a lot for the support I have done a lot of progress since then but I still have some silly questions to ask. I'm done with exercise 1 but still I have to practice it again. My trouble is the following:
For instance: 95% have refrigerators, which consume 500 KWh per year on average; The average urban household annually consumes 400 KWh for lighting; Other devices such as VCRs, televisions, and fans annually consume 800 KWh per urban household.
Thanks for your support now I know How to enter all these data but
my question is the following:
1.Why do we have to put while on activity level Existing Remainder(100) for refrigerators and lighting while for other uses they just put 100?
For instance refrigerators, while on Activity level: Branch(Existing)-Expression(Remainder(100))-Scale(percent)-Units(share)
While on Final Energy Intensity: Branch(existing)-Fuel(electricity)- Expression (500)- Scale()-Units(kilowatt-hour)-Per(per household). I Do understand this but I can't understand the really meaning of Remainder(100) mostly because of this following example about other uses:
Other devices such as VCRs, televisions, and fans annually consume 800 KWh per urban household.
While on activity level: Branch(All)-Expression(100)-Scale(percent)-Units(share)-Per(of households)
While on final energy Intensity: Branch(All)-Fuel(electricity)-Expression(800)-Scale()-Units(kilowatt-hour)-Per(per household)
Taylor Binnington 3/26/2018
1 Like Hi Nfamory -
The interpretation of these numbers is the following:
- Refrigeration: Only 95% of urban households actually have any refrigerator at all. But, of those 95% using some type of refrigeration technology, 100% of them are using only one particular type of technology (for this exercise, this is simply the "Existing" technology). On average, that technology consumes 500 kWh/year in households which use it.
- Other Uses: Same interpretation, except 100% of households (not 95%, as for refrigerators) use other devices.
In either case, the "Existing" technology is simply an average mixture of different devices, to keep the exercise simple.
The use of the Remainder(100) function is personal preference, actually. It makes building the model more convenient because in another scenario, you may increase the share of another technology option under the same category, and the value returned by the Remainder function will change appropriately. If there are no other technoology options within a category, then Remainder(100) = 100.
Taylor