Seawer is a self-supported hydroelectric power station that can generate electricity using seawater at the same time that it cleans up plastic waste. The huge structure separates plastic particles and fluids, recycles seawater and releases it back into the ocean. The structure receives energy from the sun, ocean and plastics and moves slowly from one polluted area to the next. The project received an honorable mention in the 2014 eVolo Skyscraper Competition.