Lid Design and construction of PTES heat storage

ximately 380 000 cubic meters; - Water height is 20 meters; - Surface area of the heat storage area including outer rails is approximately 67 700 square meters; - Surface area of the lid structure is approximately 37 250 square meters; - Basal area of the heat storage is approximately 8 125 square m

eters; and - Inner slopes surface area is approximately 31 300 square meters and their slope is 1:2,5. The PTES heat storage is located in a groundwater area. The construction site is located in Kulomäki old gravel pit in Hyvinkää. SCOPE OF