News 28 March 2024

Revamping work of Borgo Trento in Verona

The Borgo Trento cogeneration district heating power plant, owned by Società Municipalizzata Veronese AGSM AIM S.p.A., is located in Verona at Viale dei Caduti 4.

The power plant serves the district heating network that extends in a westerly and southeasterly direction, reaching the historic portion of the City that abuts the Adige River.

Location of the Borgo Trento cogeneration plant in Verona

Cogenera’s role in the project

Cogenera is playing the role of Works Management for the electro-mechanical works of the “revamping” process, which aims to:

  • Meeting needs: the new power plant must ensure coverage of the current thermal needs, with the addition of the summer needs of the district heating networks of Borgo Trento and Forte Procolo;
  • Solar energy: the new CHP plant must coexist with the existing solar thermal plant of 2,010 m2 and peak power of about 1.2 MW thermal;
  • Efficient district heating network: the new plant must meet the requirements of “efficient district heating” (Directive 2012/27/EU, Legislative Decree 102/2014 as amended);
  • Pollutant emissions: the new plant, in addition to complying with the legal limits, must ensure lower emission values than the current ones, in particular regarding CO and NOx and also CO2;
  • Groundwater utilization: the new CHP plant must ensure lower groundwater abstraction values than the current ones;
  • Heat dissipation: the new plant must not provide for heat dissipation, except in the case of operation under the Capacity Market mechanism;
  • High Yield Cogeneration (H.H.C.): the new plant set-up must meet the criteria for H.H.C. and must allow access to the H.H.C. White Certificates incentive mechanism;
  • Capacity Market: the new plant set-up must not preclude access to the Capacity Market mechanism

Design choices

The plant configuration chosen for the revamping of the Borgo Trento power plant involves the removal of the 24 MW turbogas and the installation of:

n. 2 cogenerators with electrical capacity of 12.6 MW each, thermal capacity of 12.4 MW and firebox capacity of 26.0 MW;

n. 1 emergency boiler with rated capacity equal to 14.9 MW;

n. 4 pressure tanks for hot water storage of 200 m3 each.

Energy scenario

It can be appreciated from the following graph that, in the project scenario, the share of energy produced through the use of cogenerators is very high, with values close to 70% coverage of total demand. In particular, in the months from April to October, almost all the energy required by the grid is produced by the ‘solar plant and cogenerators, while boilers are only called in during the winter season, when a large amount of energy is required for ambient heating of buildings connected to urban district heating networks.

Breakdown of monthly requirements

Below are rendered images of the new technical volumes

Cogenera