The project included the following tasks:

• Cooling production capacity optimization including sea water condensing compressor units (comparison of turbo compressors with refrigerant of R134a and screw compressors with refrigerant of ammonia) and hybrid heat pumps (summer operation: cooling only (sea water condensing), winter operation: heating)
• Dimensioning for process, automation and electrification equipment
• Layout
• Cost estimations for cooling production units, process auxiliary equipment, automation and electrification

Client: Helen Ltd

Helen Ltd is one of the largest energy companies in Finland supplying electric energy to about 400,000 customers and covering more than 90 percent of the heat demand of the capital city with district heat. Helsinki Smart City combines both district heating and cooling networks in a way that enables utilization of waste energies in an innovative and effective way, while reducing environmental load.