Connecting Solar Systems Safely

Improperly installed solar systems can create serious safety hazards by sending electricity back onto the electric grid if the necessary protective equipment is not in place. Without the required inverter protections, disconnects, and anti-islanding controls, a solar array can continue energizing power lines during an outage, creating dangerous reverse power flow conditions that put lineworkers, emergency responders, and the public at risk.

This is a real-world safety issue happening today. Cass County Electric has identified improperly interconnected solar systems operating on our system without the required approvals and protective equipment, creating potentially dangerous reverse power flow conditions.

To protect both the member and the electric system, solar installations should be completed by qualified, licensed electricians and reputable solar installers who understand utility interconnection requirements.

Members should be cautious of do-it-yourself solar products and systems marketed as simply plugging into a household outlet. These types of installations may not include the required safety protections, may not meet electrical codes or utility requirements, and can create serious safety risks if connected improperly.

CCEC’s interconnection process exists to ensure solar installations are designed, installed, and tested correctly before they operate in parallel with the electric grid. By reviewing system designs and verifying required safety protections, the cooperative helps protect public safety, utility personnel, member equipment, and the reliability of the electric system.

You can learn more about CCEC’s Interconnection Policy here: CassCountyElectric.com/interconnection-policy.

Before installing or energizing any solar system, contact Cass County Electric. Proper interconnection is not just a requirement; it’s a critical safety measure that helps keep everyone safe.