District Cooling - DBDH

District Cooling : Combining energy
efficiency and local resources

Climespace: Curriculum Vitae
1978 : First thermo-frigorific plant in Les Halles District
1991 : Operator of Parisian District Cooling Scheme
1994 : First plant cooled by Seine river
2010 : 7th plant built in Paris
Largest European District Cooling Scheme
Length of network : 70 km
Plants : 7 plants / 3 storages
Customers : 500
Connected power : 350 MW
Energy sales : roughly 400 GWh / year
Approximately 5 million m² cooled by Climespace energy

Climespace Network Segmentation :
Few references :
Louvre, Quai Branly, Opéra Garnier
Galeries Lafayette, Forum des Halles, FNAC
Bouygues, Vinci, RATP, Suez Envt., Veolia
Assemblée Nationale, Ministère Culture
George V, Plazza Athénée, Le Crillon, Le Ritz
Public and cultural sites : 35 MW (12%)
Boutiques / Shops: 30 MW (10%)
Offices : 218 MW (70 %)
Hotels : 22 MW (8%)

Principle of District Cooling

Example of a Plant in Paris
Invisible
No noise
Hermetic to floods
total surface : 2200 m²
ground surface : 450 m²
nb of levels : 5
Capacity : 52 MWf

District Cooling: energy efficiency at the heart of the
concept
• Mutualization Industrial equipments
• Better efficiency
• Better cost ratio (€/kWf)
• Mutualization Equipments run at optimal loads
• Continuous operation and monitoring Performances optimized
Yearly average
Energy Efficiency
Ratio
District
Cooling
Comparison based on real long term measurements
(see www.climespace.fr)
Stand-alone
plants
3,5 to 4,3 1,97
District Cooling Energy Efficiency : 50% better than average stand-alone plants

Environmental benefits of Paris District Cooling
Power savings : 40%
Greenhouse gas savings : 70%
Water savings : 75%
Chemicals uses : - 80%
More than 1000 cooling towers and chillers
avoided in the center of Paris
Low CO ² content of Energy supplied :
11 grams of CO ² per KWh in Paris

Main advantages of District Cooling
For Customers :
• Suppression of health and environment risks
• Space savings, including outdoor space
• Reliability
• Convenience
• Noise suppression
• Esthetic and architectural gains
• Capacity to adapt easily to building needs

Main advantages of District Cooling
For the local authorities :
• Energy Efficiency optimized
• Best use of local resources (power, water)
• Limit constraints on power grid
• Health and environment risk control
• Limitation of local thermic impacts
• Esthetic and architectural benefits
• Attractiveness of a green area

District Cooling schemes associated with Climespace
Levallois
à Lisbonne
A comprehensive
experience of
District Cooling
design and
operations
à Barcelone

Euromediterranée Project in Marseilles (France)
MARSEILLES
Euroméditerranée

Euromediterranée
Project
•A large-scale urban operation
•A Business District next to the Harbour
•A concentration of cooling needs
•A common interest of several real estate
promoters in an innovative and green
solution
•A progressive approach

The first step : District Cooling cooled by the
Harbour water
Constructa
4MWf
Euromed
Center 3.5 MWf
production plant cooled
by the harbour water
Terrasses du port
5.6 to 11.5 MWf

Production Plant
In the perimeter of the Port Authority
A 16MW production plant cooled by the Harbour Water :
• Primary Energy Savings
• No water consumption
• No heat rejection in the air
• No health risk
• No chemicals
Possibility of ice storage
• Power peak shaving in summer

SWAC in La Réunion
• DN 1600 PEHD
•5600 m3/h – 1500 l/s
• 40 MWf
• 4 production lines
• Titane exchangers

SWAC in La Réunion
Aspiration Rejection
Depth + 1000 m 50 to 70 m
Length + 5 km 700m
Temperature 5°C 20°C

SWAC in La Réunion
• Project dependent on public subsidies
•Provisional time table :
•Contract conclusion : april 2011
•Construction phase in 2012 / 2013
• 15 km network
• 26 customers

Thank you for your attention !