A Liter of Light

 Isang Litrong Liwanag


(photo credits: A liter of Light (isang litrong liwanag)-Facebook)

    A Liter of Light uses simple technology to create social change in underprivileged areas of the Philippines. The aforesaid project aims to provide economically and ecologically sustainable sources of light to households that cannot afford conventional electricity. The concept is that if the materials are found easily in even the poorest neighborhoods, an be built with simple carpentry skills, and can be sustained by teaching grassroots entrepreneurs how to continue the project through building and installing the solar bulb. then this facilitates expansion at a geometric rate throughout the country.

3 million households in the Philippines lack connectivity to the national grid and therefore lack decent lighting. And the Bureau of Fire Protection claims that many preventable fires are caused by faulty connections, which is made worse by the government’s inability to properly monitor informal settlements. Both of these problems can be addressed very easily with the solar bottle bulbs which are extremely easy to put together.

This is a clear example of both environmental and economic sustainability, but it is also important its social component by the fact of creating awareness of what can be achieved with few resources: to improve significantly the living conditions of an entire society hit by the cruelty of poverty.

(video credits: https://www.youtube.com/watch?v=cQCHvO2H0_0&t=51s)

There are several areas that the Solar Bottle Bulb makes sense in creating a low carbon emission through the project. the plastic bottles used are upcycled and avoids the larger energy use of gathering, shredding, manufacturing and shipping of new bottles, but instead uses them as- is to a higher purpose of a lighting appliance. the process is simple with the cutting of a steel sheet that serves as a metal lock to prevent the slippage of the bottle, then this is sealed with epoxy on to the plastic bottle, which will be simplify filled with water and 10 ml of bleach then can be immediately applied through the roof. 

It is free energy, no carbon emissions, and immediately scalable by social enterprise and lastly is easily replicated by the local government using its more considerable resources. That's it. The household will be bathed in refractive light of 60 watts on a clear dat, and the water in the bottle refracts the light 360 degrees to all corners of a 40 square meter room for less than a Php 50.00/ 1 US dollar in total plus labor. Savings in electricity expenditure every month is at an average of Php 300.00 or 6 US dollar / month. 

The bets part of this strategy is it beginning with a developing country solution where everyone can have access through either building as a donation, building for themselves, or building as a business this energy saving, carbon reduction lighting through a bottom of the pyramid strategy complimenting this with importing the more expensive solar and wind technologies.


                             (photo credits:https://www.bfi.org/ideaindex/projects/2017/liter-light)


Social Benefits:

  • The benefits to the local community above all is access
  • The second is livelihood creation



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