The cost of an emew plant depends on the application and the production rate.  For example, an emew powder plant is typically more expensive than a plating plant due to the high degree of automation coupled with larger anodic area.  For copper, an emew plant is typically within 5-10% of the cost of conventional electrowinning cells while offering significant advantages in terms of production rate, product purity, health and safety, low minimum economic investment and incremental expansion capability.