Testata Teleriscaldamento

District heating

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District heating

District heating systems
 

 

To save primary energy and increase energy efficiency, the HERA Group, in line with its mission of sustainable development, is highly committed to researching and designing district heating plants capable of combining cutting edge technology with environmental protection. To make a project “sustainable” from the very start, the first step is to complete a full mapping of the users that could be potentially connected, with possible upgrades of areas not in use or to be restored. This evaluation makes it possible to optimise the distribution grid, while also satisfying the needs of the system, users and the environment.

After the user analysis, the study moves on to energy resources present in the local community. The heat provided by an efficient district heating system makes it possible to:

  • make efficient use of renewable sources (e.g., geothermal energy);

  • increase energy efficiency (e.g., with the recovery of process thermal energy);

  • promote innovative technological supply chains;

  • protect the environment by reducing polluting and climate-altering emissions.

In this manner, a balanced and efficient system is created, which is always aligned with the requirements of users and continuous improvements that can be enacted to mitigate environmental impacts.

It is easy to see that district heating systems will spread rapidly throughout Europe in the coming years: indeed, the objectives established by the European Union require rather considerable energy saving and efficiency policies, and one of the key ways of reaching these targets is the implementation of district heating in light of the significant possibilities it provides for saving primary energy (not yet sufficiently exploited in the EU).


Source: BS2019

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District heating i numeri

The numbers


District heating: energy sold and volume served 

2019 

Thermal energy sold (MWh) 

481,510 

Volumes served (thousands of m3

21,194 

Housing unit equivalents served (no.) 

88,307 

*The housing unit equivalents served were calculated on the basis of an average apartment volume of 240 m3. Excluding AcegasApsAmga.

District heating impianti

Plants


9 District heating systems:
Cogen-Barca, Ecocity (Casalecchio), Navile, CAAB-Pilastro (Granarolo), Fossolo, Sede-S.Giacomo, Castelmaggiore, S.Biagio (Casalecchio)
Total installed capacity 226 MWt

Recovery from WTE 28 MWt and from wastewater treatment plant 2 MWt
Cogeneration 25 MWt and natural gas boilers 171 MWt


Ferrara System
Total installed capacity 155,5 MWt

Geothermics (14 MWt)
Recovery from WTE (30 MWt)
Supplementary heating plants and natural gas reserve (84 MWt + 17,5 MWt)
Recovery from steam plants (10 MWt)


Forlì, Forlì Campus, Cesena Ippodromo and Cesena Bufalini Total installed capacity
Total installed capacity 89.4 MWt

Forlì 34 MW:
Recovery from WTE (20 MW) and natural gas boilers (14 MWt)
Forlì Campus - Centro 16.5 MW:
Cogeneration and natural gas boilers
Sistema Cesena Ippodromo 18.5 MW:
Cogeneration and natural gas boilers
Cesena Bufalini System (including steam) 19.8 MW:
Cogeneration and natural gas boilers

Forlì Città Solare 0.6 MW
Heat production from solar plant


Maximum installed capacity 153.3 MWt

Imola System 147.50 MW:
Casalegno Combined Cycle Cogeneration Plant (80 MWt cogeneration cycle and 45 MWt reserve boilers)
Other heating plants (22.5 MWt)
Castel Bolognese System 3.2 MW:
Cogeneration and natural gas boilers
Faenza System 2.6 MW
Natural gas boilers


3 District heating systems:
Quartiere Giardino, III Peep, Ex Livestock Market
Max installed capacity 35.4 MWt

Quartiere Giardino System (25.5 MW): Cogeneration and gas boilers
III Peep System (6.7 MW): Cogeneration and gas boilers
Ex Livestock Market system (3.2 MW): Gas boilers


Ravenna system

System powered by natural gas boilers:

Max. installed capacity 1.1 MWt

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