Reducing transmission expansion by co-optimizing sizing of wind, solar, storage and grid connection capacity
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| Format: | Preprint |
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2023
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| author | Manocha, Aneesha Patankar, Neha Jenkins, Jesse D. |
| author_facet | Manocha, Aneesha Patankar, Neha Jenkins, Jesse D. |
| contents | Expanding transmission capacity is likely a bottleneck that will restrict variable renewable energy (VRE) deployment required to achieve ambitious emission reduction goals. Grid interconnection and inter-regional transmission capacity may be reduced by the optimal sizing of VREs to grid connection or co-location of VRE and battery resources behind the grid interconnection, but neither of these capabilities are commonly captured in macro-energy system models. We thus develop these two new functionalities to explore the substitutability of storage for transmission and VRE resource trade-offs through 2030 in the Western Interconnection of the United States. Our findings indicate that not modeling co-location fails to capture the full substitutability of storage and solar photovoltaic (PV) resources for transmission: co-location can reduce long-distance inter-regional transmission expansion by 12-31% and decrease grid connection capacity and shorter-distance transmission interconnection by 20-25%. We also demonstrate that not modeling colocated storage does not accurately reflect competition between wind and solar PV resources and underestimates the value of energy storage: co-location of VREs and storage favors solar PV (4-5% increase) and lithium-ion battery deployment (1.7-6 times increase), while decreasing wind buildout (0.9-1.6% decline). |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2303_11586 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Reducing transmission expansion by co-optimizing sizing of wind, solar, storage and grid connection capacity Manocha, Aneesha Patankar, Neha Jenkins, Jesse D. Systems and Control Expanding transmission capacity is likely a bottleneck that will restrict variable renewable energy (VRE) deployment required to achieve ambitious emission reduction goals. Grid interconnection and inter-regional transmission capacity may be reduced by the optimal sizing of VREs to grid connection or co-location of VRE and battery resources behind the grid interconnection, but neither of these capabilities are commonly captured in macro-energy system models. We thus develop these two new functionalities to explore the substitutability of storage for transmission and VRE resource trade-offs through 2030 in the Western Interconnection of the United States. Our findings indicate that not modeling co-location fails to capture the full substitutability of storage and solar photovoltaic (PV) resources for transmission: co-location can reduce long-distance inter-regional transmission expansion by 12-31% and decrease grid connection capacity and shorter-distance transmission interconnection by 20-25%. We also demonstrate that not modeling colocated storage does not accurately reflect competition between wind and solar PV resources and underestimates the value of energy storage: co-location of VREs and storage favors solar PV (4-5% increase) and lithium-ion battery deployment (1.7-6 times increase), while decreasing wind buildout (0.9-1.6% decline). |
| title | Reducing transmission expansion by co-optimizing sizing of wind, solar, storage and grid connection capacity |
| topic | Systems and Control |
| url | https://arxiv.org/abs/2303.11586 |