A PJM emergency conservation event is called when electricity demand is exceptionally high, such as during periods of extreme heat. PJM Interconnection oversees the energy grid across the region and may call these events to help maintain grid reliability and reduce strain on the electric system. As an Energy Wise Rewards or Flex Rewards participant, your enrolled device may be cycled for short periods to help reduce electricity demand. Click here to learn more about PJM.By participating in the Energy Wise Rewards or Flex Rewards program, you're helping reduce demand during periods of peak usage. When thousands of customers participate together, it helps support a more reliable energy grid for everyone. FAQ Type Flex Rewards Order 5.00