Citi: Limit On Optimal Wind, Solar Energy Investments Is $5.7 Trillion

Now that solar and wind energy are close to par with traditional fuels, proponents are pushing to install as much capacity as possible with the idea that more is always better. However, the cost of integrating wind power and the peculiarities of solar mean that neither can fully replace fossil fuels or nuclear. According to Citi analyst Jason Channell, there is still $5.7 trillion worth of productive investment to be made in renewables—the trick is figuring out where it should go.

Intermittency of renewable energy is a concern