Large Greek companies, interested in the construction and operation of waste incinerators producing electricity and heat, are waiting for the government to complete the legal framework and launch tenders. Without the six planned facilities and accompanying infrastructure, the country would substantially lag behind the European Union’s targets for lowering the share of landfilled material.
Greece is transforming its waste management sector – dozens of units mechanically treating the material to feed six incinerators, covering all the regions. The Ministry of Environment and Energy is about to complete a strategic environmental assessment (SEA), after which its plan is to adopt a legal framework, before the end of the year.
Following a public consultation process, the general parameters would be determined including the details of a tender for the waste-to-energy plants. They are valued at EUR 1 billion in total. State-controlled Public Power Corp. (PPC or, in Greek, DEI) has expressed interest in entering the sector, alongside the conglomerates GEK Terna and Metlen, construction company Aktor, oil refinery operator Motor Oil and water, wastewater and waste processing operator Mesogeos.
The ministry intends to complete the competitive process in 2026, followed by a three-year construction period. The Greek media learned that public-private partnership is a favorable model for the investments.
At least two of six plants would provide district heating
In the central scenario, an incinerator in the Rhodope area would serve the wider region of East Macedonia and Thrace. One would be in Kozani, a coal region, for Central and Western Macedonia, Epirus, Thessaly and Corfu.
The government envisaged a unit in the Peloponnese to cover Western Greece, the Peloponnese peninsula itself and the Ionian Sea, excluding Corfu. One waste-to-energy plant is planned in Boeotia (Viotia), covering parts of Central Greece and the western part of Attica.
The waste incinerator in Kozani is likely to be built in the vicinity of Ptolemaida 5, Greece’s last coal power plant
In the same peninsula, where Athens is situated, a unit would also get shipments of waste from the north Aegean islands, one section of the Cyclades archipelago and the Dodecanese. An incineration plant in Heraklion (Iraklio) would be for Crete, Santorini, Karpathos and Rhodes.
The combined annual capacity of the six units is projected at 1.19 million tons. The largest ones are the Attica project (356,000 tons) and the Kozani plant (288,000 tons). The latter, which would probably be located near PPC’s Ptolemaida 5 coal power plant, is also seen providing up to 40% of the district heating needs in the area. The investment is valued at EUR 300 million.
Ptolemaida 5 is scheduled to be closed at the end of next year, marking the completion of Greece’s coal phaseout. The waste incinerator in Boeotia would provide district heating as well, the plan reads.
System for energy recovery clings on construction of mechanical treatment units, waste separation
On the logistics side, there are 13 waste treatment units in operation in Greece and 25 are under construction. The ministry expects all units to be complete by 2029, to feed the incinerators.
The capacity amounts to 1.45 million tons per year altogether, of which 651,000 tons of waste would be processed into solid recovered fuel (SRF), which is of higher quality. The energy-intensive industry would absorb 150,000 tons. The development of the treatment system requires substantial infrastructure including the selection of municipal waste selection at the source.
Up to 651,000 tons of SRF is expected to be produced per year in the waste treatment facilities
The estimated electricity production from 1.19 million tons of waste is 1.03 TWh, equivalent to 2% of the country’s total consumption. Notably, 57.5% of the projected output is considered renewable energy, in line with the portion of biodegradable waste.
In the study, the options to deploy pyrolysis or gasification technologies were rejected. The authors argued they are not viable in Europe. It left incineration as the only option to recover energy from waste.
If the incinerators aren’t built, but the energy-intensive industry receives the same amount of SRF, 22.7% of waste would be landfilled in 2030, projections showed. The European Union’s target is 10%. The share of landfilled waste rises to 29.2% in the same scenario.