Tech and system model figures #554
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| Depending on the models used and the size of the system, H2Integrate can simulate systems ranging from the kW to GW scale in seconds on a personal computer. | ||||||
| Additionally, H2Integrate tracks the flow of electricity, molecules (e.g., hydrogen, ammonia, methanol), and other products (e.g., steel) between different technologies in the energy system. | ||||||
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| For each technology there are 4 different types of models: control, performance, cost, and finance. These model categories allow for modular pieces to be brought in or re-used throughout H2Integrate, as well as ease of development and organization. Note that the only required models for a technology are performance and cost, while control and finance are optional. The figure below shows these four categories and some of the technologies included in H2Integrate. For a full list of models available, please see [Model Overview](user_guide/model_overview.md). | ||||||
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There was a problem hiding this comment. For consistency with the existing image reference on line 81, consider adding the "./" prefix to the image path. The splash_image.png reference uses "./splash_image.png" while this new reference uses "tech-model.png" without the prefix. While both may work, consistency in image path formatting improves maintainability. |
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| The individual technology models are then connected to create the hybrid system model, as shown in the simplistic example below. Here, data from the performance, cost, and finance models of the grid and battery technologies feed into the overall system performance and finance calculations. There is also a physical connection between the grid and battery performance models in the form of an electrical cable. Lastly, within the battery technology, the control model and performance models are connected for dispatching of electricity. | ||||||
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There was a problem hiding this comment. For consistency with the existing image reference on line 81, consider adding the "./" prefix to the image path. The splash_image.png reference uses "./splash_image.png" while this new reference uses "system-model.png" without the prefix. While both may work, consistency in image path formatting improves maintainability.
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| If technologies require resource or price profiles, they can be provided by the user, or in many cases pulled automatically from existing databases. The costs and performance of the technology models in the system are combined into system-level performance and finance components for techno-economic analysis of the hybrid system. H2Integrate systems may include multiple system-level finance models to assess results with different system boundaries if desired. Besides simulation and analysis, H2Integrate can also perform system and sub-system optimization. | ||||||
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| A more complex and generalized example of an H2Integrate model is shown below: | ||||||
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| The modular nature of the H2Integrate system makes adding custom models, including proprietary models for local analysis only, very straightforward. | ||||||
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| ## How does H2Integrate differ from other tools? | ||||||
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| H2Integrate is developed at NREL, which has a long history of developing high-quality tools for renewable energy systems. | ||||||
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Collaborator
There was a problem hiding this comment. The main comment I have here is that by separating out steel, it looks like that is separate from the ammonia, methanol, etc. end uses. Is the steel modeling different materially, or do we just have more detail there?
Collaborator
Author
There was a problem hiding this comment. I separated steel out and not ammonia because we have more technologies that are specifically related to the steel supply chain. I debated just leaving the tech lists out of the figures, but I think it does help. |
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There’s an extra space in “ease of” that should be removed to avoid rendering/editing artifacts.