Electricity consumption today is expected to exceed yesterday’s level of 10,700 MWh, a ten-year high, and reach close to 11,000 MWh, which would represent an all-time high, as the prolonged heatwave peaks.
Industrial consumers are awaiting switch-off orders from power grid operator IPTO. Up until yesterday, they had yet to receive such instructions, but a number of industrial enterprises have already switched off voluntarily, while Prime Minister Kyriakos Mitsotakis has urged consumers to exercise restraint in electricity consumption.
Authorities are placing their hopes for grid sufficiency in strong summer breezes forecast for Thursday that should cool temperatures and significantly boost generation through the country’s wind energy facilities.
Though still too early to judge, the grid appears to have stood up to the heatwave’s challenge so far. Minor technical issues and brief outages in various parts of the wider Athens area, Larissa, central Greece, and Agrinio, in the northwest, have been reported.
Authorities remain on edge as the resilience of a largely outdated grid remains uncertain amid daily consumption levels of 9,000 to 10,000 MWh for days on end.
Lignite-generated input is playing a crucial role. It covered between 16 and 18 percent of consumption yesterday. Power utility PPC’s lignite-fired Megalopoli III power station, which has been sidelined for months as part of the country’s decarbonization phase-out plan, operated most of the day yesterday.