The answer to 'electrical panel sparking' is that this is a serious electrical issue that requires immediate attention from a professional electrician. Sparking in an electrical panel can indicate a dangerous problem like a short circuit, overloaded circuit, or faulty wiring. This should never be ignored as it poses a serious fire risk and safety hazard.
Some common causes of an electrical panel sparking include old or damaged circuit breakers, loose connections, moisture or water intrusion, rodent damage, and overloaded circuits. Symptoms may include flickering lights, buzzing noises, burning smells, and visible sparks or arcing. Attempting to troubleshoot or repair a sparking panel yourself can be extremely dangerous and is not recommended. Call a licensed electrician right away to diagnose and fix the issue safely.