Drop it in. Plug it in. Power up.
Modular micro-hydropower generators that transform flowing water into free electricity. Works in streams, irrigation canals, and even runoff ditches with flow as low as 2 mph.
A farmer unboxes a RiverStoll, drops it into their irrigation ditch, and within 60 seconds their phone lights up showing live energy generation: "Powering 3 buildings + 2 hours until flood conditions - equipment auto-protected." They realize they're getting paid for water that was just flowing past unused.