Add Yahoo as a preferred source to see more of our stories on Google. Although unlikely, some "extreme scenarios" and weather this summer could result in insufficient energy to power Ohio and Northern ...

Electric-grid operators from across the country are warning of the potential for blackouts as companies attempt to transition to green energy sources. "I am concerned about it," MISO Chief Executive ...

The largest electric grid operator in the US has issued a level one emergency alert - raising the specter of its 65 million customers facing potential blackouts during a searing heatwave. Currently ...

VALLEY FORGE, Pennsylvania (WPVI) -- Frigid temperatures are having an effect on the power grid. PJM Interconnection, the local electricity grid operator, is asking customers to conserve energy ...