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Hydrological balance in Scandinavia

Wednesday, 18 September 2019


The hydrological balance, which measures the energy stored in soil, snow and reservoirs, have returned to positive territory for the first time since the end of June. The current estimated hydro balance is 4.5 TWh above normal. This includes a rather wet weather forecast for the coming ten days (ECMWF).

The reservoirs in Norway, Sweden and Finland were slightly below normal in week 37. The numbers are expected to be above normal next week (week 39).

In Southern Norway, heavy rain has increased the inflow as well as unregulated production. A very wet autumn thus far is resulting in Norwegian producers having less control of their output.  The Swedish and Fin...

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