In most standard grid-tied solar PV systems, the answer is no.   During a blackout or power outage, grid-tied solar systems are designed to automatically shut down for safety reasons. This is to prevent electricity from being sent back into the grid while utility workers are repairing the power lines, which could pose a safety hazard to them.   However, there is a solution if you want to have backup power during a blackout. You can install a solar PV system with battery storage, such as the Tesla Powerwall. With a battery system, excess solar energy generated during the day can be stored in the batteries to be used later during periods of low sunlight or during a blackout.   During a power outage, the battery system can provide electricity to power essential appliances and lights in your home, giving you some level of energy independence and backup power. It’s essential to size the battery system appropriately to meet your backup power needs and to ensure it can support the critical loads during an outage.   If you’re interested in having backup power during power outages, contact Wing Energy and we will design a system that suits your needs and ensures reliable backup power.