Subject: Hydropower plant Posted: 12/18/2024 Viewed: 638 times
In a reservoir operation modeling problem, before supply urban and agricultural demands, the released water must enter the hydropower plant and then the demand is supply. But only the excess released water enters the power plant. Where could the problem be?
Mr. Doug Chalmers
Subject: Re: Hydropower plant Posted: 12/18/2024 Viewed: 630 times
Hani,
Is your hydropower plant a reservoir object or run of river hydro? Is it located along your mainstem river, or is it off-channel?
Your reservoir will release only enough water to fulfill downstream demands, and water will only enter your hydropower plant if there is an object with a demand priority pulling it through this location.
Here are a few solutions, depending on your configuration:
1. Set the Energy Demand and Hydropower Priority parameters of your hydropower plant. This will draw water into the plant, enough to fulfill the Energy Demand, at an allocation priority level equal to the Hydropower Priority.
2. Use a flow requirement object to draw water to your hydropower plant.
3. Make sure that your hydropower plant is properly connected with the rest of your system. Is it located on the same river? Are there transmission links or diversions bringing water the hydropower plant? Would water flow through the hydropower plant on its way to the demands in real life vs. in your schematic?
Hope this helps!
-Doug
Miss Hani Sharifi Moghadam
Subject: Re: Hydropower plant Posted: 12/22/2024 Viewed: 533 times
I have a question about a hydropower plant and a reservoir located along the mainstem river. The reservoir releases water only to fulfill downstream demands, and this water should passes through the hydropower plant before meeting the demand.
However, in my case, water entering the hydropower plant is separate from the demand, and hydropower generation is based on the downstream outflow. How can I model or account for this in my system?
Mr. Doug Chalmers
Subject: Re: Hydropower plant Posted: 12/23/2024 Viewed: 496 times
Hani,
Using the hydropower within a reservoir object will generate power based on the outflow out of the reservoir. If I'm understanding correctly, your reservoir releases water based on downstream demand, and the power generation occurs from the released flow to those water demands. If this is true, then a reservoir object along the river with the hydropower expressions would suffice.
If you are finding issues with the power generation, check your hydropower expressions, particularly Max Turbine Flow, Generating Efficiency, and Plant Factor.
