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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2603.15934 |
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| _version_ | 1866914420869824512 |
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| author | Regev, Shaked Tsybina, Eve Peles, Slaven |
| author_facet | Regev, Shaked Tsybina, Eve Peles, Slaven |
| contents | We expand our novel computational method for unit commitment (UC) to include long-horizon planning. We introduce a fast novel algorithm to commit hydro-generators, provably accurately. We solve problems with thousands of generators at 5 minute market intervals. We show that our method can solve interconnect size UC problems in approximately 1 minute on a commodity hardware and that an increased planning horizon leads to sizable operational cost savings (our objective). This scale is infeasible for current state-of-the-art tools. We attain this runtime improvement by introducing a heuristic tailored for UC problems. Our method can be implemented using existing continuous optimization solvers and adapted for different applications. Combined, the two algorithms would allow an operator operating large systems with hydro units to make horizon-aware economic decisions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_15934 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Fast Relax-and-Round Unit Commitment with Economic Horizons Regev, Shaked Tsybina, Eve Peles, Slaven Optimization and Control Mathematical Software Systems and Control 90C10 G.4; G.2; J.2 We expand our novel computational method for unit commitment (UC) to include long-horizon planning. We introduce a fast novel algorithm to commit hydro-generators, provably accurately. We solve problems with thousands of generators at 5 minute market intervals. We show that our method can solve interconnect size UC problems in approximately 1 minute on a commodity hardware and that an increased planning horizon leads to sizable operational cost savings (our objective). This scale is infeasible for current state-of-the-art tools. We attain this runtime improvement by introducing a heuristic tailored for UC problems. Our method can be implemented using existing continuous optimization solvers and adapted for different applications. Combined, the two algorithms would allow an operator operating large systems with hydro units to make horizon-aware economic decisions. |
| title | Fast Relax-and-Round Unit Commitment with Economic Horizons |
| topic | Optimization and Control Mathematical Software Systems and Control 90C10 G.4; G.2; J.2 |
| url | https://arxiv.org/abs/2603.15934 |