Are solar panels really "environmentally friendly"?
Solar panels come with their own set of environmental challenges that's not often talked about. One of the primary concerns is the presence of toxic metals leaching into surface and ground water.
Solar panels come with their own set of environmental challenges. One of the primary concerns is the presence of toxic metals in some types of solar panels. If these panels are not properly maintained or are damaged by severe weather, these metals can leach into surface and groundwater, posing risks to the environment and human health.
What metals are we talking about?
Solar panels can contain toxic metals such as cadmium, lead, and selenium. Cadmium telluride (CdTe) panels, for example, are known for their efficiency but also contain cadmium, a toxic heavy metal. Similarly, some panels use lead-based solder, which can be harmful if it leaches into the environment.
How do these metals leach though?
When solar panels are damaged—whether through improper disposal, physical damage, or weather events like hailstorms, tornadoes, and hurricanes—the toxic metals can be released. Rainwater can then carry these metals into the soil and groundwater. Over time, this can lead to contamination of water sources, which is a significant concern for both ecosystems and human communities relying on these water supplies.
Unfortunately, since this does not fit the agenda of some politicians fights against oil, you don’t hear about this in the mainstream media.
Preventive measures
If you are gung ho about using solar power, to mitigate these risks it’s crucial to handle solar panels with care. Proper installation, regular maintenance, and safe disposal at the end of their life cycle are essential. Recycling programs specifically designed for solar panels can help recover valuable materials and prevent environmental contamination.
Do I support solar?
Absolutely, when used in the right context and for the right purposes. I don’t, however, support the hardcore anti-oil position that has been given alongside solar power.
After all, solar panels, battery banks, and power infrastructure aren’t possible without petroleum :)
Learn more:
National Renewable Energy Laboratory (NREL)
ABC News
Clean Energy Wire