Energy membrane

The conclusion and results after the completion of Phase 1 and 2 is that the expected losses in the soil layers where the energy is stored as potential energy will be approx. 100J/m3. It is expected that the energy loss in the soil layer on a 50x50 m demo installation (performed in Phase 3) would constitute <0.5% of the total energy stored. An elongation of less the <2% of the LDPE membrane was measured in the experiments. This is a lot less than the 7% elongation that the membrane was exposed to during the testing at danfoss, and further far below elongation of 500% that the supplier indicates. There were no changes on the membrane after the test. (Energy 11)