Member state | ITALY |
Case study | Ferrara |
Description | Ferrara, Northern Italy, uses the geothermal source in an integrated system for district heating and cooling, together with the heat produced in a biomass plant for solid wastes and methane gas boilers as back-up. The District heating of Ferrara supplies about 320 buildings for the heat producing and about 85 buildings for sanitary hot water. This DH saves 9 000 m3 of oil equivalent. |
Region>City>location | Emilia Romagna – Ferrara – Casaglia |
Owner | Hera S.p.A. – Herambiente – Enel Greenpower |
Operator | Hera S.p.A. – Herambiente – Enel Greenpower |
Installed capacity ( MWth) |
154,5 MW |
Installed geothermal capacity | 14MW |
DH length (m) |
c. 56.000 (double pipe) |
Inhabitants connected | 578 connected substations – 5.500.000 m3 connected |
Design of the DH | Eni – Amga – Agea – Hera |
subsurface and surface technical schemes |
Subsurface facilities: two geothermal wells and one reinjection well (approx. 1000 m depth) Surface facilities: 29 MWt CHP WTE plant, two integration plants with 3 and 4 natural gas boilers |
Operating Temperature of the DH | 90°C – 60°C |
Temperature of the geothermal ressource (production – injection) |
105°C – 85°C |
Geothermal flow rate |
400 m3/h |
Production of heating and/or cooling | Heating only |
Others uses (drinking water, cascade uses…) |
No |
Financing (banks, funds, PPP…) |
Grant of the Province to the owner – manager |
Comparison with fossil energies | 110-120€/MWh |
Innovation if any | – Multi-source system (geothermal, WTE and natural gas) – Renewable Energy Pole, project under development: a new pilot plant is planned to heat the west part of the city by using geothermal energy and 1 MWth solar thermal energy. This extension of the DH will allow to cover 40% of the city heat demand and to use 91% RES-heat (56,40% will be from geothermal, which ). The system will produce also 250 kWe and will have 4 stratification storage tanks. This project has been also considered as a best practice example in Interreg IV C Geopower (http://www.geopower-i4c.eu/index.php?page=bpview&id=22) and in IEE SDH Take-off projects |
Ferrara
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