The Philippines will soon be able to light up the night and even power electronics with no more than a glass of salt water. The Salt Lamp was developed by Lipa Aisa Mijena, an engineer at De La Salle University in the Philippines in an effort to improve residential conditions in the Philippines by using a naturally abundance resource.
This area of the world is known for an unstable power grid due to natural disasters as well as a logistical lack of electric infrastructure. Thereby, many of the residents do not have access to electricity and often resort to using oil lamps. These lamps are not only costly and non-eco-friendly but also have led to a great many domestic fires in the area.
Using about a glass of water and 2 tablespoons of salt, or the salt water of the ocean, the lamp can provide approximately 8 hours of light. Two electrodes placed in the water convert the energy and only need to be replaced once a year.
These eco-friendly low cost lamps cost less than other conventional or connected options and will be deployed via non-profit organizations to have the greatest immediate impact. Eventually a commercial option may become available.
Salt water will continue to prove to be a very interesting factor in the field of clean energy!