Gregers Larsen 8/26/2013

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I am trying to model a transport system on the basis of the activity of the vehicles and have run in to the following problem:

In activity analysis, the different technologies are set up with different fuels and their share. This fits well to analysis of for instance biofuel vs. gasoline vs. EV. However, if a technology that uses more than one fuel (ie. a plugin-hybrid technology) is used, how can these be modelled if the share between gasoline usage and grid electricity consumption is unknown?

Charlie Heaps 8/26/2013
 

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Hi Gregers,

I suggest you just set up the car as a category/folder branch, then create two technology branches underneath it marked "car gasoline" and "car electricity" to account for use of each fuel.

You can assign emission factors to the gasoline use on the demand site but probably best to let LEAP's Transformation analysis calculate the emissions associated with electricity generation.

I hope this helps.

Best,

Charlie

Gregers Larsen 9/24/2013
 

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I have moved my analysis into stock analysis mode, but encounter the same problem here.

I am doing as suggested, splitting the hybrid cars into different fuels, then specifying efficiency by inline calculation. Is there a chance for a specific inbuild way to do this in the future? I would presume it is a problem many encounters.

Thanks,

Gregers

Taylor Binnington 9/26/2013
 

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Hi Gregers,

Our goal with LEAP is to provide a set of building blocks, which can be used flexibly to create many different modules to suit the modeler's needs. This strategy keeps LEAP as flexible as possible - we try to avoid implementing too many software switches to keep things simple, but also because it's possible that one modeler's preference for the handling of EVs may be different than another's.

We'll nonetheless take your suggestion under advisement (and we do appreciate all feedback!), though there are a few higher priorities for us.

Take care,

Taylor