available in Kozani, Ptolemaida, Amyntaio, Philotas, Serres and Megalopolis using nearby power plants. In Serres the power plant is a Hi-Efficiency CHP Plant using natural gas, while coal is the primary fuel for all other district heating networks. Hungary According to the 2011 census there were 607,578 dwellings (15.5% of all) in Hungary with district heating, mostly panel flats in urban areas. The largest district heating system located in Budapest, the municipality-owned Főtáv Zrt. ("Metropolitan Teleheating Company") provides heat and piped hot water for 238,000 households and 7,000 companies. Iceland 93% of all housing in Iceland enjoy district heating services – 89.6% from geothermal energy, Iceland is the country with the highest penetration of district heating. There are 117 local district heating systems supplying towns as well as rural areas with hot water – reaching almost all of the population. The average price is around US$0.027 per kWh of hot water. Southwest Iceland and Reykjavík's hot water supply for district heating comes from three geothermal power plants, producing over 800 MWth: Svartsengi Combined heat and power plant (CHP) Nesjavellir CHP plant Hellisheiði CHP plant Ireland The Dublin Waste-to-Energy Facility will provide district heating for up to 50,000 homes in Poolbeg and surrounding areas. Some existing residential developments in the North Docklands have been constructed for conversion to district heating – currently using on-site gas boilers – and pipes are in place in the Liffey Service Tunnel to connect these to the incinerator or other waste heat sources in the area. Tralee in Co Kerry has a 1 MW district heating system providing heat to an apartment complex, sheltered housing for the elderly, a library and over 100 individual houses. The system is fuelled by locally produced wood chip. In Glenstal Abbey in Co Limerick there exists a pond-based 150 kW heating system for a school. A scheme to use waste heat from an Amazon Web Services datacentre in Tallaght is intended to heat 1200 units and municipal buildings Italy In Italy, district heating is used in some cities (Bergamo, Brescia, Cremona, Bolzano, Verona, Ferrara, Imola, Modena, Reggio Emilia, Terlan, Turin, Parma, Lodi, and now Milan). The district heating of Turin is the biggest of the country and it supplies 550.000 people (62% of the whole city population). Latvia In Latvia, district heating is used in major cities such as Riga, Daugavpils, Liepāja, Jelgava. The first district heating system was constructed