Renewables

Upgrade for prosumers to avoid grid curtailments costs up to EUR 1,000

Upgrade prosumers to avoid grid curtailment costs up to EUR 1 000

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Published

April 15, 2025

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Published:

April 15, 2025

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To use electricity from their photovoltaic systems in periods when grid operators disconnect them to stabilize the system, citizens can install equipment that costs EUR 300 to EUR 1,000. Cyprus passed a bill enabling prosumers to switch to a zero-export mode.

Cyprus, the only non-interconnected European Union member state, is struggling to maintain the stability of its electricity system. Rapid growth of solar power capacity is increasing the episodes of overloads, when grid operators have to curtail their production. At the same time, sometimes sudden weather changes push production to a critically low level, which can also cause outages before oil-fired power plants step in to cover the deficit.

Still, the island country passed amendments last week to protect the right of prosumers to an interrupted power supply for their own needs. On the other hand, implementation isn’t cheap, and for some of them it would not be cost-effective.

Upgrading a PV system with a zero-export mode is not cost-effective if no one is usually home during work hours

Minister of Energy, Commerce and Industry George Papanastasiou said prosumers need to upgrade their photovoltaic systems to be able to keep consuming their electricity during curtailments. A switch for cutting off the solar panels from the grid, and leaving them directly connected to the home, costs some EUR 300, he added. But a prosumer will need to pay EUR 1,000 if the inverter doesn’t support the conversion, the minister explained.

Owners of PV systems need to calculate the curtailment costs and compare them to the investment that enables operating them in a so-called zero-export mode.

If no one is home on weekdays during work hours, when solar panels generate electricity, there are no substantial benefits, unless there is also a battery. And it makes the intervention much more expensive. Conversely, the new option is much more useful for most businesses.

Cyprus is rushing to introduce energy storage capacities and expand the curtailment systems throughout the power system.

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