Helsinki, Finland is pioneering a huge cooling system that will use cold water from its lakes instead of of electricity-powered air conditioning, reports Fast Company.
“Hundreds of feet beneath an ordinary-looking downtown park, a local energy company built a huge reservoir filled with nearly 9 million gallons of lake water. When the system is fully operational next summer, the water will be pumped to local buildings in the area to keep them cool. At night, the water will flow back underground, where waste energy will be used to cool it down again.”
(READ the full story from Fast CoExist)
Photo from Helsinki Energy
If the air conitioners will not be installed in this huge reserviors, then how this water will be kept little cold..? In the summers it will get hot.
http://www.airdexinc.com
Anything underground usually stays steady somewhere between fifty and sixty degrees… even in the summer!