The electricity industry in most of Texas is deregulated, which means that consumers can choose their electricity provider. This is different from regulated areas of Texas and other parts of the country, where a single utility company delivers electricity to homes and businesses. Texas deregulation process started with the passage of Senate Bill 373 in 1995 and culminated with granting independence to the Electric Reliability Council of Texas (ERCOT) in 2002.
My work at a green energy trading company/hedge fund (battery energy storage system or "BESS" company) involved building an entire backend real-time, multi-cloud data storage system and ELT/ETL pipeline. Our goal was to make real-time energy predictions as accurately as possible and as far in advance as possible.
My article about my work can be read here: https://www.energy-storage.news/the-future-of-battery-trading-addressing-the-risks-and-rewards-of-ai-optimisation/