How to protect your energy portfolio from a solar storm

The United States is in its second-lowest solar storm in recorded history.

The last one occurred in September 2011, when solar storms caused nearly a dozen states to lose power.

The latest was a powerful solar storm last week that led to power outages across the country.

Solar storms are unpredictable, but there is some comfort in knowing that solar storms are relatively rare.

Here are some things you can do to prevent them from happening to you.