Demand charge  

Trusted HOMER

With regard to the contracted demand, there is in Brazil the concept of exceeding the value contracted. Example, if the consumer contracts 1 MW, but at some point, he demands 1,2 MW from the grid, he is subject to a penalty and he'll be charged 3x the normal demand rate in that month.

Is it possible to model this effect in Homer?

Posted : June 3, 2017 11:14 pm
Active HOMER

Hi Gabriel,

There are no explicit ways to model ratcheting clauses within HOMER today.  

However, if you would like to model avoiding the high demand charge, you can limit your sale capacity (units of kW).

Here's information on sale capacity:


Let me know if that doesn't answer your question,


Posted : June 9, 2017 12:06 pm
Trusted HOMER

Hi Steffi! thank you for your answer!

I had noticed this parameter. Since there's no other way, I'll use it as a modeling simplification. 

Posted : June 11, 2017 10:41 pm

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