Assessment of Wind/Solar Co-Located Generation in Texas
This study evaluates the opportunity to load co-located wind and solar generation capacity onto a constrained transmission system while engendering only minimal losses. It also quantifies the economic and energy opportunities and costs associated with pursuing this strategy in two Texas locations one in west Texas and the other in south Texas.
For the purposes of this study, solar/wind co-located generation refers to the presence of solar and wind generating capacity upstream from a transmission constraint. It does not necessarily mean the solar and wind capacity is co-located on the same property or is operated jointly by a single project owner.
Clean Energy Associates (CEA) obtained and incorporated wind and solar resource data and ERCOT load and price data into a model which evaluates varying levels of solar thermal, solar PV and wind capacity against an assumed transmission capacity limit. Three solar PV configurations were included in the model:
- Single-axis tracking, with rows oriented north to south and with modules tracking from east to west (PVT).
- Fixed tilt and orientation, tilted at approximately 10 degrees less than latitude tilt and oriented due south (PVF);
- Fixed tilt and orientation, tilted at approximately 10 degrees less than latitude tilt and oriented to the southwest (PVFSW);
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Clean Energy Associates