Commissioning of S.O.L.I.D.’s first solar cooling plant in Jamaica

Digicel_Jamaika/Fa. SolidRealization of the new office of the mobile telecommunications operator Digicel in Jamaica’s capital Kingston was a show case for all participants. Following many years of market development in the Caribbean this is he first realized plant for S.O.L.I.D. in the region.
Positioned at the shore the new office provides 13,685 m² space in three main parts of the building: 11 floor office tower, food court, and ancillary building.

 

The project became a show case for renewable due to the implementation of a solar thermal cooling system from S.O.LI.D., further a photovoltaic system, and a wind turbine. Special sunblinds provide extra shading for the glass façade and reduce the energy footprint further.

The project was realized in close cooperation with our local partner RED (Renewable Energy Developers) under the lead of Maikel Oerbekke, who is active S.O.L.I.D.’s spear head for activities in the Caribbean since many years.

 

Technology

981.5 m² of gluatmugl HT flat plate collectors, which are specially designed for solar cooling systems, are mounted at an inclination of 20° on the roofs of the food court and ancillary building.

 

The chiller, tanks, pumps and other equipment are placed in the basement of the office building.

 

The single stage Lithium-Bromide-absorption chiller is ready for the integration of a cogeneration unit to be implemented later. Solar cooling provides the base load; the remaining cooling demand is served with conventional electric driven chillers. Both chillers feed in parallel into the centralized cold water distribution system; they share main components such as pumps and cooling tower.

 

The expected energy yield of the solar cooling system is 492 MWh cooling energy per year.

 

The standardized S.O.L.I.D. tele-monitoring system ensures surveillance, and enables fine tuning of the system.

 

Details

 

Organizational

  • Design and engineering: S.O.L.I.D. GmbH
  • Construction: RED, and local sub-companies
  • Owner/Operator: Digicel Jamaica Limited
  • Commissioning: 2012

 

Technical

  • Collector area: 981.5 m² gluatmugl HT-
  • Hot energy storage: 2 x 5.5 m³
  • Li-Br Chiller: 600 kW (prepared for cogeneration integration)