EAC justifies solar panel shutdowns as common practice worldwide

The Electricity Authority of Cyprus (EAC) has addressed concerns about the curtailment of energy from photovoltaic (solar) systems, explaining that such measures are necessary for maintaining grid stability. This process is common internationally and ensures the reliable operation of the electricity system.

Energy curtailment and impact

The EAC highlighted that small commercial and residential photovoltaic systems have faced curtailment, leading to energy losses of around 1% in 2024, with projections to rise to 4-5% in 2025 due to the increasing number of solar installations. For homeowners with a 4KW photovoltaic system, this could result in a financial loss of approximately €12 per billing period, but the overall savings from the system typically amount to €240 bimonthly, offering substantial benefits despite occasional reductions.

Grid stability and curtailment process

To maintain the stability of Cyprus’s isolated electrical grid, the EAC must balance energy production and consumption. When renewable energy production exceeds consumption, the independent Transmission System Operator (TSO) directs the EAC to limit renewable output. This process involves reducing power from conventional stations, followed by the disconnection of large wind and photovoltaic systems. Only if necessary do authorities implement curtailments on smaller systems.

Net metering and future solutions

For customers in net metering schemes, the EAC reassured them that their energy benefits are still preserved, as they can use the excess energy stored in the grid during curtailments. The authority also suggested potential future solutions, such as energy storage systems (batteries) and the possibility of linking Cyprus's grid to neighboring countries to manage surplus energy more effectively.