John O' Shea 2/22/2013

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Hi,

I am working my way through exercise 1 in the training manual but my graph for section 1.5.1 Global Warming Potential (all GHG's) looks to have a smaller demand than yours. my Tranformation looks about the same as the graph in the manual. I have looked back over the branchs in the demand section and a looks like I have linked all the environmental loading I can (some technology branches such as lighting for example don't have any environmental loading as they are kerosene lamps). Is there any sections that are commonly over looked when linking data from TED?

Tory Clark 2/22/2013
 

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Hi John,

I would recommend opening the Freedonia completed data set to check your answers. You can actually have two copies of LEAP running side by side to facilitate this kind of results checking.

To do this, right click on the LEAP shortcut on your desktop and click "Run" (or "Run as administrator"). You will get a message that says you are now viewing the same file as "read only." Then in this second window, open the Freedonia file that was installed with LEAP. Now in Freedonia, go to Area: Revert to Version: Freedonia EX1. This will show you the results at the end of the first exercise.

In terms of diagnosing the problem in real life (because when building an analysis from scratch you won't have answers to check with!), you should always start with your demand branches to make sure they match your expectations. Then check transformation (because transformation is driven by demand). And finally check the global warming potential, because if the demand for energy is correct but emissions are different, you know the problem is in the emission factors.

Common things to forget in EX1 related to emissions are forgetting to put in emissions factors for all demand branches. Remember that electricity-consuming devices will not have an emissions factor (emissions are accounted for at the power plant in transformation), but all fuels being combusted will. This means that kerosene lamps WOULD have an emission factor. You may not realize it but a kerosene lamp is indeed releasing emissions when you burn it!

Also, be sure not to include emissions factors for things like natural gas transmission and distribution.

Best,

Tory

John O' Shea 2/23/2013
 

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Thanks for your help. I thought it might be the lamps alright but a window pop up in LEAP telling me there is no associated emissions factor for kerosene lamps when I select kerosene lamps in TED. Maybe I could select a different set of data that would be most like kerosene when it comes to emissions and I can use that instead.

kind regards, John

Tory Clark 2/24/2013
 

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Hi John,

When you try to add emissions factors with TED it will use the fuel at that branch to try to guess what factor you will want. Check the properties at your kerosene lamps branch (right click to get to properties) and make sure that kerosene is the selected fuel.

Also, you can always manually select the correct IPCC emission factor after you have clicked the TED button. In this case, the IPCC tier one emission factors will be the generic "oil" emission factor for the residential sector.

Tory