Niraj Acharya 5/25/2014

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While giving input to endogenous capacity is there any condition that is to be satisfied during the least cost electricity generation process? In my optimization output, only one technology is selected.For example, in my model, the generation technologies are solar, hydro, biomass and diesel. In my result, the optimization scenario selects only hydro and the capacity in hydro and optimization is different. Similarly, cost is also different.
Furthermore, while viewing result how can we display electricity generation by process?
Thank you

Taylor Binnington 5/28/2014
 

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Hi Niraj,

I'm afraid I need to ask some clarifying questions. First, though, I'm not sure what you mean by Endogenous Capacity in an optimized transformation module - the Endogenous Capacity variable appears only for processes under non-optimized transformation modules. You can read about it here:

http://www.energycommunity.org/WebHelpPro/Transformation/Endogenous_Capacity.htm

Can you also clarify what you mean by "the optimization scenario selects only hydro and the capacity in hydro and optimization is different. Similarly, cost is also different."? Different than what? Are you comparing a non-optimized scenario to one in which electricity generation is being optimized?

Yes, you can view electricity output by process. Select the Transformation: Outputs result, and display by Branches (these correspond to processes under a transformation module).

I can help more with a bit of clarification.

Taylor

Niraj Acharya 5/29/2014
 

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I have given enough capacity in resource yield for all the resources but the model shows diagnostic message saying that optimization is unable to build all the required capacity in and after 2015 (which is my scenario year). Can you please help me on this?
As for previous problems, I think I have solved them now?
Similarly, can you tell me about costing structure in optimization scenario?
For example, the capital cost of biomass plant is 2500$ in my model but in optimization scenario for 2015 6 kW the cost is below 2000$? can you explain ?

Niraj

Taylor Binnington 5/29/2014
 

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Hi Niraj,

The 'Yield' variable in the Resources tab is not the same thing as LEAP's capacity for a transformation process. Can you provide me with the exact warning message that you see, indicating that the model is unable to build all of the required capacity? Have you accidentally specified a number in the Maximum Built Capacity variable of your optimized processes?

http://www.energycommunity.org/WebHelpPro/Transformation/Maximum_Built_Capacity.htm

You'll have to be more specific about questions related to the calculation of costs in optimized transformation modules. Capital cost is a variable that the user must provide to the model - if you enter $2500 per unit of capacity (per kW), then that (together with fuel, fixed and variable O&M) is the value used to calculate the total annualized cost of your hydro plant. It may be that the value of $2000 that you are seeing is the annualized cost of 6 kW of hydro.

I think you should review our online training materials, which will help you to better understand how LEAP works. They are available here:

http://www.energycommunity.org/default.asp?action=42

Look specifically at Exercise 6 (Optimization), but if you still find yourself with questions, you might also look at the earlier training modules.

Hope this helps,

Taylor