Here's why the U.S. electric grid isn't running on 100% renewable energy yet

I have two friends who are electrical engineers. According to them the biggest problem with renewable energy is scaling production to demand. “Renewable” energy is variable and unpredictable and lacks scalability to meet demand. Not mentioned in the article is the cost of mining rare earth metals, both from a monetary and ecological stand point it is very costly and involves exploiting third world countries. The fact that China controls 60% of rare earth minerals is another problem! I can’t imagine the battery system required o cover weeks of heavy snow in the Northeast with heightened energy demand! I place the article in the BS file.

LTC Eugene Chu
..."Generating electricity to power homes and businesses is a significant contributor to climate change. In the United States, one quarter of greenhouse gas emissions come from electricity production, according to the Environmental Protection Agency.

Solar panels and wind farms can generate electricity without releasing any greenhouse gas emissions. Nuclear power plants can too, although today's plants generate long-lasting radioactive waste, which has no permanent storage repository.

But the U.S. electrical sector is still dependent on fossil fuels. In 2021, 61 percent of electricity generation came from burning coal, natural gas, or petroleum. Only 20 percent of the electricity in the U.S. came from renewables, mostly wind energy, hydropower and solar energy, according to the U.S. Energy Information Administration. Another 19 percent came from nuclear power."