Graph-Based Optimization for Technology Pathway Analysis: A Case Study in Decarbonization of University Campuses
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arXiv
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| Format: | Preprint |
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2023
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| author | Lopez, Blake Ma, Jiaze Zavala, Victor M. |
| author_facet | Lopez, Blake Ma, Jiaze Zavala, Victor M. |
| contents | Industrial sectors such as urban centers, chemical companies, manufacturing facilities, and microgrids are actively exploring strategies to help reduce their carbon footprint. For instance, university campuses are complex urban districts (involving collections of buildings and utility systems) that are seeking to reduce carbon footprints that originate from diverse activities (e.g., transportation operations and production of heating, cooling, and power utilities). This work presents an optimization framework to identify technology pathways that enable decarbonization of complex industrial sectors. The framework uses a graph abstraction that compactly captures interdependencies between diverse products and technologies as well as diverse externalities (e.g., market, policy, and carbon prices). Duality analysis reveals that the formulation can be interpreted as an economy, market, or value chain that uses technologies to generate economic value (wealth) by transforming basic products into higher value products. This interpretation also reveals that the formulation identifies pathways that maximize the profit of stakeholders, helps reveal the inherent value (prices) of intermediate products, and helps analyze the impact of externalities and technology specifications on product values. Our developments are illustrated via a case study involving a prototypical university campus that seeks to identify pathways that reduce its carbon footprint (e.g., via electrification and deployment of hydrogen technologies). We use the framework to determine carbon tax values, technology specifications, and investment budgets that activate different technology pathways and that achieve different levels of decarbonization. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_00809 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Graph-Based Optimization for Technology Pathway Analysis: A Case Study in Decarbonization of University Campuses Lopez, Blake Ma, Jiaze Zavala, Victor M. Optimization and Control Physics and Society Industrial sectors such as urban centers, chemical companies, manufacturing facilities, and microgrids are actively exploring strategies to help reduce their carbon footprint. For instance, university campuses are complex urban districts (involving collections of buildings and utility systems) that are seeking to reduce carbon footprints that originate from diverse activities (e.g., transportation operations and production of heating, cooling, and power utilities). This work presents an optimization framework to identify technology pathways that enable decarbonization of complex industrial sectors. The framework uses a graph abstraction that compactly captures interdependencies between diverse products and technologies as well as diverse externalities (e.g., market, policy, and carbon prices). Duality analysis reveals that the formulation can be interpreted as an economy, market, or value chain that uses technologies to generate economic value (wealth) by transforming basic products into higher value products. This interpretation also reveals that the formulation identifies pathways that maximize the profit of stakeholders, helps reveal the inherent value (prices) of intermediate products, and helps analyze the impact of externalities and technology specifications on product values. Our developments are illustrated via a case study involving a prototypical university campus that seeks to identify pathways that reduce its carbon footprint (e.g., via electrification and deployment of hydrogen technologies). We use the framework to determine carbon tax values, technology specifications, and investment budgets that activate different technology pathways and that achieve different levels of decarbonization. |
| title | Graph-Based Optimization for Technology Pathway Analysis: A Case Study in Decarbonization of University Campuses |
| topic | Optimization and Control Physics and Society |
| url | https://arxiv.org/abs/2311.00809 |