Conclusion
We have discussed
electromagnetism and electromagnetic radiation and established their
relationship to photovoltaics via the photoelectric effect and
semiconductors. Additionally, we saw the tremendous potential
contained in ordinary sunlight and how we can harvest some of that
energy using solar cells. The current limitations facing the
solar power industry include the relatively low conversion efficiency
of standard cells as well as the comparatively high cost per kWh of
power generation due to the relatively limited manufacturing support.
However energy costs from oil, coal and natural gas have risen
dramatically in recent years due to the ever increasing global demand
for energy from developing nations such as China, India, and
Indonesia.
This fact makes solar energy a competitive and attractive alternative
to traditional energy sources. But we have seen the tremendous
potential of ordinary sunlight, and thus the pursuit of higher
efficiency solar cells should be a high priority. The irony of
geopolitical destabilization over energy demands occurring while the
greatest potential source on the planet quietly rises on a daily basis
should not escape the reader. Energy will be a critical issue in
this
century and beyond as it is the single greatest challenge facing the
human race. Solar power can help us realize a future in which our
demands for energy are satisfied in harmony with our environment and
each other.
Web Project
by P. D. Wallace
University of Alaska Fairbanks
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