The answer to 'electrical meter sparking' is that a sparking electrical meter is a serious issue that typically indicates a problem with the electrical system or the meter itself. This can be caused by a loose connection, faulty wiring, or a problem with the meter itself. Sparking is a fire hazard and should be addressed immediately.
If you notice your electrical meter sparking, you should turn off the main breaker and contact a licensed electrician right away. Attempting to troubleshoot or repair a sparking meter yourself can be extremely dangerous and should not be done. A professional electrician will be able to safely diagnose the issue and make any necessary repairs to ensure your electrical system is working properly and safely.