Energy from salt gradient

REDstack (Reverse Electro Dialysis)

A pilot plant is operational on the Afsluitdijk. RED is a form of sustainable energy production. The 'fuel' consists of fresh and salt water. Rivers flow into the sea and the fresh water mixes with the salt water. These are the most obvious suitable locations for the application of RED. Part of the river water is led along with seawater along a membrane stack in a housing, the so-called RED stack. This is where the company REDstack gets its name from. Salt and fresh water are mixed in a controlled manner in the stack and this process generates electrical energy. The resulting brackish water is returned to the sea and the electrical energy is supplied to the grid and distributed from there. The energy generated in this way is often called Blue Energy.