The former quarry becomes a Class A luxury village

Conceived from an environmental requalification project of the former limestone quarry of Sistiana and costing 245 million euro for a period of 20 years, PortoPiccolo was renamed the “Little Montecarlo" of the northeast. This is a really self-sufficient city, able to offer excellent homes for relaxation and luxury intended to attract over 2,000 visitors daily, for a total of 900,000 people yearly. 

 

The Challenge

  • abatement of energy consumption and exploitation of the local resources such as sea water and groundwater 
  • elimination of local emissions of CO2 and exhaust gas 
  • a remarkable flexibility of the use of the systems, that could respond to the great climactic variability bound to seasonality, so as to have a sustainable village also from the economic standpoint.
porto piccolo di sistiana

The complex

456 residential units, 830 underground parking and 393 alternate rotational underground parking lots, 32 commercial units, one wellness centre and a SPA of 9,000 sq. m, a 5-Star luxury hotel, restaurants, bars, swimming pools, an extensive beach resort and a marina for 120 boats.

The team

Client: Serenissima SGR, Rilke
Architectural design: arch. Francesco Luparelli
Architectural and structural project development: Archest
Plant engineering project: SGM Consulting and SIMM società di ingegneria Masoli Messi
Plant engineering contractors: Fabbro Vanni, Ranzato Impianti, Idrotermica Buttrio, Tecnoterm
Management: Bovis Lendlease 

The solution

Solution based on the technology of the ring of water that uses sea water as a water change source. Furthermore, the system is predisposed for the exploitation of groundwater issuing from the cracks of the limestone comprising the quarry floor and goes onward to the seabed.

This renewable resource has stabilised with time, supplying water at temperatures always suitable to the technical ring, which serves the entire bay with the 18 thermal power plants and fridges installed at different points, equipped with high efficiency Clivet water-to-water reversible heat pumps.

The Clivet heat pumps produce hot and cold water, as well as sanitary water for various users: from the hotel, to the SPA, residential units and commercial areas. They supply energy only where needed according to the principle of decentralization and modulate their own functioning in relation to the specific requests for comfort and external conditions, exploiting in the interim seasons, also the free cooling function. 

The distribution of the hot or cold fluid inside the different buildings comes about through radiant floors, high efficiency and utmost silent Clivet fan coils, and towel heaters. All the heat pumps are powered exclusively by electric energy, as also the induction stoves, completely eliminating the use of gas and fuel. 

In the village there are moreover 200 sq. m of solar panels positioned on the roofs of the modern buildings, that contribute to high efficiency heating of sanitary hot water.

The system

  • 17 water-to-water reversible heat pumps on the fridge circuit ELFOEnergy Ground Medium WSHN-XEE sized 162 to 802 and for the heating and cooling, and production of sanitary hot water
  • 611 ELFOSpace terminal units sized 3 to 11
  • 3MW total refrigerating capacity
  • 200 sq. m of solar thermal panels for the production of sanitary hot water  

The results

Per ottenere eccelenti risultati sono state fondamentali la decentralizzazione e la modulazione ai quali si ispira il sistema di climatizzazione, che risponde puntualmente alle esigenze di comfort, ottimizzando l'uso delle risorse in funzione dell'occupazione degli edifici nelle diverse stagioni ed in funzione delle variazioni climatiche.

L'alimentazione completamente elettrica sia delle pompe di calore che delle diverse utenze domestiche, ha permesso di eliminare completamente le emissioni di gas da combustione per una città completamente green.

Neanche le autovetture possono circolare nel borgo e tutti i parcheggi sono interrati. Anche la sfida del comfrot acustico è stata pienamente raggiunta attraverso l'installazione di vetrate laminate specializzate nel controllo acustico, che offrono un abbattimento acustico di 45 dB (-1: -5), e di terminali ELFOSpace di Clivet con emissione sonora di soli 44db (a 1 metro).