Euroheat

1
Euroheat Power 33rd CongressCHP/DHC Building
our future18-19 June 2007, CopenhagenWorkshop
F District Cooling

• Introduction to Workshop
• Tomas Bruce
• Chairman, Capital Cooling Europe
• Stockholm

2
Fundamental idea of district cooling
The main idea of district cooling is to use
local sources for cooling that otherwise would be
wasted or not used, in order to offer the local
market a competitive and high-efficient
alternative to the traditional cooling
solutions.
Sourcing free/natural cooling or Waste heat
Production Chillers/heat-pump Absorption
The centrally produced district cooling can reach
5-10 times higher efficiency than local
electricity-driven equipments.
3
Euroheat Power 33rd CongressCHP/DHC Building
our future18-19 June 2007, CopenhagenWorkshop
F District Cooling

• Firstly
• DC means advantages for Customers/Users
• Reliable supply and improved comfort
• Small investments
• Low operating costs
• Stable price
• Floor and roof space available for alternative
  use
• Higher energy efficiency
• Better environmental profile

4
Euroheat Power 33rd CongressCHP/DHC Building
our future18-19 June 2007, CopenhagenWorkshop
F District Cooling

• Secondly
• DC means advantages for Suppliers
• Loyal customers
• Stable and expandable business
• Low risk in operations
• Low demand of electricity
• More efficient use of existing capacity
• Strong environmental profile
• Opens for combined energy products

5
Euroheat Power 33rd CongressCHP/DHC Building
our future18-19 June 2007, CopenhagenWorkshop
F District Cooling

• Thirdly
• DC means advantages for Society
• Uses less primary energy
• Reduces the emissions of GHG (CO2 HCFCs)
• Creates a more sustainable society
• Makes it easier to meet international obligations
• Avoids blackouts during hot days
• No condensers with fans on roof tops
• Improves energy efficiency (next slides)

6
Euroheat Power 33rd CongressCHP/DHC Building
our future18-19 June 2007, CopenhagenWorkshop
F District Cooling

• Local solutions COP
• Conventional chillers
  1.5 3
• District Cooling solutions
  COP
• Chillers with high efficiency condenser cooling
  6 8
• Combined District Cooling/District Heating
  6 9
• Free cooling/chillers 8 25
• Free cooling 25 40
• Waste heat/absorption chillers
  25 40
• COP Cooling energy received/electric power
  input

7
Euroheat Power 33rd CongressCHP/DHC Building
our future18-19 June 2007, CopenhagenWorkshop
F District Cooling

• DC identified by the Energy Services
  Directive (Annex III) as one tool to increase the
  energy efficiency by at least 9 to year 2016!
• Example of impact of 1000 GWh cooling
• Local chillers with COP 2,5 means 400 GWh
  electricity
• District Cooling with COP 10 means 100 GWh
  electricity
• Electricity demand is reduced by 300 GWh
• Corresponds to 750 GWh primary energy (conv.
  fact. 2,5)
• DC sales of 1 TWh can (in this example) mean
  an increased energy efficiency of 0,75 TWh to be
  added to the national action plan!