1.1 Background of
Solar panels glimmering in the sun are an icon of all that
is green. But while generating electricity through photovoltaic is indeed
better for the environment than burning fossil fuels, several incidents have
linked the manufacture of these shining symbols of environmental virtue to a
trail of chemical pollution. And it turns out that the time it takes to
compensate for the energy used and the greenhouse gases emitted in photovoltaic
panel production varies substantially by technology and geography.
2.0 Research Reason
2.1 Problem Statement
There are three generation of Solar
cells. Depending upon the material using in them. They need lots of energy
during manufacturing & cause serious problems while manufacturing &
decomposing. Workers who are working in the making industries are heavily
exposing by these dangerous elements. The best way to avoid exposing
workers and the environment to toxic cadmium is to minimize the amount used or
to use no cadmium or at all.
Toxicity isn’t the only concern. Making solar cells
requires a lot of energy. Fortunately, because these cells generate
electricity, they pay back the original investment of energy; most do so after
just two years of operation, and some companies report payback times as short
as six months. This “energy payback” time is not the same as the time needed
to recoup a consumers financial investment in solar panels; it measures
investments and payback times in terms of kilowatt-hours, not in terms of
Analysts also judge the impact of the energy used to make a solar panel by
the amount of carbon generated in the production of that energy—a number that
can vary widely. To do this, we give the energy a carbon-intensity value,
usually represented as kilograms of CO2 emitted per kilowatt-hour
2.2 Study Purpose
The research problems which are mentioned above, in this dissertation will
be addressed with the answers & solutions. The aim of research will expose
the exercise regarding solar cells manufacturing & decomposition & evaluate
the solutions which may help to make this renewable energy really sustainable.
2.3 Questions of Research
The research aims as mentioned above can be addressed after answering the
1. How research comparison of
pollutants used & produced in the production of Solar Cell can be done?
2. How can we do proper decomposition
of three generation solar cells depending upon the lifespan of used elements by which no sort of
pollution would occur?
3. How can we recycle Solar
4. Is it possible to
manufacture solar cells by using lowest amount of energy?
2.4 Significance Statement
dissertation will increase the knowledge in the following three areas:
1. Pakistan Solar Association (PSA) is making all efforts
to protect and promote solar business in Pakistan. By formulating this
dissertation, Pakistan will be provided clean energy to the people.
2. Environmental Protection Agency (EPA) is making efforts
to use renewable energy in a sustainable way because while generating
electricity through photovoltaic is indeed better for the environment than
burning fossil fuels, several incidents have linked the manufacture of these
shining symbols of environmental virtue to a trail of chemical pollution.
3. The findings of this research will result in the
efficiency & effectiveness of strategic planning process of public sector
organizations of world, specially Pakistan public sector organization of
2.5 Limitation of research
study is limited by various boundaries which are as follows:
This research examines the formation process & energy required in
the yield of solar cell & their decomposition depending upon the lifespan
of elements (Silicon, cadmium, telluride) degradation.
research is mainly focusing world which may face
hazardous substances present in soil
by the improper decomposition of solar cells which may cause land pollution.