The delivery comprises of 2 different pipe material acquisition lots (Lot 1 and Lot 3) for Mustikkamaa cavern heat accumulators. Lot 1 is the titanium (Grade 2, 3.7035) pipes for the diffusor piping of the heat accumulator. Lot 3 is the heat accumulator process piping Super duplex material (1.4410).

Diffusor pipes of the heat accumulator, material titanium grade 2 (3.7035).

Heat accumulator process piping, super duplex material (1.4410).