Renewable energy companies have had a great month. Besides improving technologies and economies of scale that make them attractive investments now, the shift is leading to other changes. One of those changes is in regard to demands for base commodities needed to make this technology. One, in particular, has been in a shortage for years. Increased demand from green tech is likely to drive prices higher. That space is in copper. Best known for its use in wiring, it’s a key component in everything from solar panels to electric vehicles. And analysts at Jefferies point out that demand is...
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