It is a simple bottle bulb, usually a 1 liter soda bottle that is filled with a solution of purified water and bleach. The bottle is inserted halfway through a hole drilled in the metal roof and its sides are sealed. The whole deal looks like a bulb through a sunroof and provides a good amount of light by deflecting sunlight into gloomy interiors.
The chlorine and bleach “poisons” the water to keep molds from developing so the solution can last up to five years. The clear and purified water helps disperse the light through refraction, so the light is not concentrated. It only costs $2-3 to make a solar bottle bulb that is bringing light to dark homes. Location/Target Population: Barangay, Tejeros Makati City How to Implement the Solar Bottle Bulb? The idea is actively being promoted by Barangay Tejeros Foundation Inc. in the City of Makati its “Isang Litrong Liwanag” Project which means ” A Liter of Light” and it was launched in other barangays in Metro Manila early this year.
Isang Litrong Liwanag is a Philippines-based organization aiming to build indoor lighting in one million homes throughout the country by 2013. The Makati City government shouldered the expenses for making the bulbs while Barangay Tejeros Foundation trained residents on how to make them. Objectives: Because a thousands of poor homes in Manila have a problem, not uncommon for cramped and small settlements. These houses are so close together, with metal roofing that all the light is blocked off and no light reaches the homes even during daylight.
This project and its success is a great example of the ‘market-based’ solutions that should be pursued for socio-economic problems worldwide, strategies that are smart, effective & resourceful. Components of the Project: The materials used for this type of still should have the following characteristics: * Materials should have a long life under exposed conditions or be inexpensive enough to be replaced upon degradation. * They should be sturdy enough to resist wind damage and slight earth movements. They should be nontoxic and not emit vapors or instill an unpleasant taste to the water under elevated temperatures. * They should be able to resist corrosion from saline water and distilled water. * They should be of a size and weight that can be conveniently packaged, and carried by local transportation. * They should be easy to handle in the field. Although local materials should be used whenever possible to lower initial costs and to facilitate any necessary repairs, keep in mind that solar stills made with cheap, unsturdy materials will not last as long as those built with more costly, high-quality material.
With this in mind, you must decide whether you want to build an inexpensive and thus short-lived still that needs to be replaced or repaired every few years, or build something more durable and lasting in the hope that the distilled water it produces will be cheaper in the long run. Of the low-cost stills that have been built around the world, many have been abandoned. Building a more durable still that will last 20 years or more seems to be worth the additional investment. Choosing materials for the components in contact with the water represents a serious problem.
Many plastics will give off a substance which can be tasted or smelled in the product water, for periods of anywhere from hours to years. As a general guide, if you are contemplating using any material other than glass or metal in contact with water, you may perform a useful screening test by boiling a sample of the material in a cup of good water for half an hour, then let the water cool, and smell and taste it. This is a considerably accelerated test of what happens in the still. If you can tell any difference between the test water and that you started with, the material is probably safe to use.
To get some experience, try this on polyethylene tubing, PVC pipe and fiberglass resin panel. Project Cost: The total cost amount in our project options such as a 100 pesos to 200 pesos only solar bottle bulb made of a plastic bottle of purified water and bleach, sealed into the roof. The water helps disperse sunlight into a room, while the chlorine keeps mold from growing. In wealthy countries, where access to cheap fossil-fueled electricity from the grid is nearly universal, solar electricity is still seen as an expensive energy option.
That’s particularly true when considering that a rooftop photovoltaic installation of sufficient size to power an electronics- and appliance-packed home costs tens of thousands of dollars. But the calculus is much different when bringing electricity for the first time to homes and communities that have none, with an aim of providing basic needs such as lighting and cell-phone charging. Development organizations are finding that solar energy is one of the most cost-effective options for providing not only power, but also a better livelihood.
Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute solar energy. Active solar techniques include the use of photovoltaic panels and solar thermal collectors to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air. In 2011, the International Energy Agency said that the development of affordable, inexhaustible and clean solar energy technologies will have huge longer-term benefits.
It will increase countries’ energy security through reliance on an indigenous, inexhaustible and mostly import-independent resource, enhance sustainability, reduce pollution, lower the costs of mitigating climate change, and keep fossil fuel prices lower than otherwise. These advantages are global. Hence the additional costs of the incentives for early deployment should be considered learning investments; they must be wisely spent and need to be widely shared. 3. 4Social Study According in Social Studies Modifications were designed for a standard soda bottle solar light constructed with a 2 liter soda bottle, water, and bleach.
When inserted through the roof of a structure, the device generated approximately 50-60 watts of omnidirectional light. A total of 8 different prototypes were designed and tested using a 100 watt full spectrum bulb to simulate the light of the Sun. A Vernier light sensor was used to determine the amount of lux that each of the prototypes transmitted. Design C, the combination of 4 smaller plastic bottles that had the same volume as 1 large plastic bottle, and Design H, the combination of 4 smaller plastic bottles with a surrounding hood covered in aluminum foil, further reflected the light than the design recently developed.
Standard soda bottle solar lights are currently being used in Manila, the Philippines and other countries. The modified designs that were engineered can be used to improve the amount of indoor lighting for households in these developing countries, fulfilling the social and economical needs. A growing problem with access and affordability of indoor lighting in developing countries has led to the renewed interest in studies of solar lights. The access to electricity for indoor lighting in developing countries is very important for growth, both socially and economically.
From 1971 to 2005, the percentage of houses connected to the grid electricity in Bangladesh only increased from 3% to 33%. In 2002, only 50% of the rural communities in South Africa had access to electricity while 80% of urban communities had access. Over 3 million households surrounding Manila, in the Philippines, are currently without generated power. Many urban areas have access to electricity, while rural areas do not. Also, the accessed electricity must be affordable, or it is of no use.
With solar lights, the cost is not important since there are no expenses for electricity. Regression in the area of electricity for rural communities has created a surge in solar lights. 3. 5 Financial Analysis According to our latest research report, PhilippinesSolar Energy Market Analysis, the country’s installed capacity for solar power generation has increased tremendously during the last few years. Rising electricity demand, high irradiation levels, favorable government policies, and huge investments are supporting the growth in the solar industry.
As per findings, various state governments are focusing on solar power plants installation to increase the solar power-installed capacity in the country. Some states, like United State of America in home lights and street lights installation is witnessing solar photovoltaic systems installations. We have extensively analyzed some of the top states in the country to further clarify the picture of solar power installation and solar projects sanctioned. The author has also studied about the regulatory environment and initiatives adopted by the government to boost growth in the solar market.
The report highlights the industry performance and future outlook of solar power sector with in-depth analysis of both solar photovoltaic and solar thermal. A section includes various solar product systems, such as solar cooker, street lightening systems, home lightening systems, lanterns, power plants, PV pumps, solar powered telecom towers, and solar rooftops with their major manufacturers. From our analysis, we anticipate that street lightning systems will exhibit the highest growth among the solar products. A section on key players is also provided to facilitate current market
