Salt water plant wall battery concerns simple salt water batteries for use in plant walls at home. They have no hazardous materials in their construction and are non-toxic and they can not explode. In addition, they can be more deeply discharged with no damage to the battery. Moreover, salt water plant wall battery is low-cost and can be a generalized scale for family-based energy storage and can be easily installed as plant walls.

Trees are valuable parts of the urban environment however maintaining them can create a lot of problems. Unstable or sick trees in the city have less value as they or their branches can falling and dangerous. It is very important to find an automation solution such as by using drones in combination with artificial intelligence technologies to evaluate trees of the city digitally.