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RIVSAL Holdings Inc, a Houston-based renewable energy startup, has partnered with Greentown Labs to advance its E1 Powerplant technology, which generates electricity using water. Operating from Greentown's Ion District facility, RIVSAL plans to begin demonstrations of its technology on February 2, 2026, aiming to provide industrial and commercial businesses with sustainable on-site power generation. Founded in 2025 and part of Rice University’s Rice Nexus program, RIVSAL focuses on delivering zero-emission energy solutions with predictable costs.