How Do Electric Grid Operators Warn Us About Extreme Heat?  - Union of Concerned Scientists
Electricity grid operators often keep a wary eye towards the thermometer, particularly during the summertime danger season, as daily temperatures soar above 90 degree Fahrenheit and heat waves spread around the country. And for good reason: extreme heat events cause a host of reliability issues
New Jersey United States Energy Emergency American Electricity Reliability Corporation Reliability Council Of Texas Flex Alerts
Source: ucsusa.org