In Greece there are 60 biomass and biogas power plants, with a total capacity of 84 MW, 40 biogas power plants, with a capacity of 71.7 MW and 31 small livestock farms, with 24.6 MW capacity. There is an estimated potential though, for capacity up to 1000 MW. The largest unit in Greece and one of the largest in Europe is the biogas plant of Ano Liossia (Athens) and Psyttalia (Piraeus), with a capacity of 11.4 MW. In Greece, there are - with a conservative estimate -at least 280.000 small and medium-sized enterprises in the primary sector which annually produce more than 18 million tons of waste that is transferred either to landfills or to the sewage network. There is also 2.000 tons of straw. In order to use them efficiently there should be greater social acceptance and concrete spatial planning. Studies from 1989 predict that 500 MW is the minimum capacity that waste management can give to the country's energy system. Also, a project is underway in Northern Greece with the possibility to produce some kind of coal from the biomass of the region, which could be used in conjunction with lignite for district heating. Small islands face a problem with the management of biomass because it is only possible on large islands, as small quantities are unprofitable. Last year, the Biomass Department of CRES carried out 10 studies in collaboration with municipalities for the combustion of straw as with 160.000 tons and with liquidized combustion technology, a 25 MW unit can be built. Because the biomass has a purely local character, there are currently three logistics projects, “Agrochange” in two areas at Northern Greece and “Muse”, according to which there is research regarding the crops that produce adequate leftovers, in situ. A GIS system has already been set up to record the extent and type of debris as a GIS easy calculates the distance one has to travel, what time of year the crops are harvested and how the material can be used more efficiently. CRES is in the process of experimenting for the development of the use of biomass for the supply of district heating, where lignite is used at the moment. In this way, job positions in the region are also ensured, as they could be integrated into the biomass supply processes.
Short title:
New Technologies for the Utilization of Biomass: Information from the Centre for Renewable Energy Sources and Saving (CRES).
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Project leader:
Greek Permanent Committee on Research and Technology (GPCRT)