Since the early 1990s, however, demand has risen fourfold, reaching 6,800 GWh. At the same time, electricity output has shrunk by half, to around 4,000 GWh. Scant rainfall and the antiquated state of the HPPs are to blame.
Međutim, od devedesetih godina potrebe su se učetvorostručile, dostigavši 6.800 GWh. Istovremeno, proizvodnja energije se smanjila za polovinu, na oko 4.000 GWh. Za to se krive oskudne kiše i zastarelost hidroelektrana.