Despite their increased operational cost, power utility PPC’s lignite-fired power stations remain essential, on an occasional basis, to ensure electricity supply security by countering various concerns that may arise, including voltage instability at the grid’s northern section.

Power grid operator IPTO needed to bring into the system one or two lignite-fired power stations throughout most of May, despite the high cost entailed, which would normally keep these units sidelined.

No lignite-fired power stations needed to be used for grid sufficiency on May 13 and 16, as is also the case for today.

The northern section of the country’s grid can be susceptible to voltage instability as a result of the international grid interconnections in the wider area, facilitating exports.

Until recently, northern Greece’s west Macedonia region was the country’s energy epicenter, courtesy of PPC’s extensive lignite portfolio in the area.

Regular use of higher-cost lignite-fired generation has increased price levels in the day-ahead and balancing markets, which, by extension, is increasing costs for suppliers.

PPC’s increased CO2 emissions, when the utility’s lignite-fired power stations are brought into operation, is also directly impacting industrial consumers, who are burdened by the resulting additional cost, passed on by the utility.

CO2 costs have risen sharply of late as a result of rallying carbon emission right costs.