Are solar panels really worth their eco-footprint? The debate on small-scale renewable energy devices continues to go back and forth as we, the consumers, try do determine whether we're doing harm or good by investing in these nascent technologies. While a professor at UC Berkeley says that solar panels -- in their current form -- are really nothing but a financial sinkhole, Vasilis M. Fthenakis of Brookhaven National Laboratory gives solar manufacturing two green thumbs up.The environmental impact of producing the 3 main types of photovoltaic cells is relatively small -- the greenest being the thin-film cadmium telluride cells. These findings are based on a PV cell's lifecycle analysis, not on their viability as a mass energy source. Per GWh, solar panels produce far less emissions than a typical power source like coal. In other words, if all of our power magically came from solar panels, it would reduce our nation's energy emissions by 89%.
That said, a solar setup costs around $90,000 to install and produces a whopping $19,000 - $51,000 worth of electricity over its lifetime. That's not exactly the kind of equation that makes me want to run to the bank and get a loan.
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