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POWER: Swiss Hydro Stocks Flip to Surplus to Long-Term Average

POWER

Swiss hydropower reserves last week – calendar week 41 – increased by 3.1 percentage points to 85.7% of capacity, the highest level so far this year, while switching back to a surplus to the long-term average, BFE data showed. 

  • Stocks decreased by 0.4 points the week before.
  • Reserves narrowed the deficit to the five-year average to 0.2 points, compared with 4.1 points the week before.
  • Stocks switched to a surplus to the long -term average – since 1997 – to 0.4 points, compared to a deficit of 3.7 points the week before.
  • Swiss hydropower reserves peaked between early October and early November in the past five years.
  • Swiss hydropower generation from pumped storage last week increased by 404MW to 1.26GW. Run-of-river generation was broadly stable last week at 363MW, while output from reservoirs increased by 348MW to 1.53GW.
  • Nuclear generation in Switzerland was broadly stable last week at 2.56GW – the lowest weekly level in eight weeks.
  • Axpo’s 365MW Beznau 1 nuclear reactor is currently undergoing planned maintenance until 21 October. Works started on 28 September.
  • Power demand in Switzerland last week increased to 6.86GW, compared with 6.38GW the week before, as cooler weather has lifted heating demand.
  • Precipitation last week in the hydro-intensive region of Sion last week stood a 161mm, well above the 30-year normal of 36.3mm.
  • Looking ahead, the latest 6-10 day ECMWF weather forecast for Zurich suggested mean temperatures well above the seasonal normal this week, limiting demand for heating.
  • Milder weather in Sion this week is further limiting snowfall in Switzerland’s hydro intensive regions. The L'Ecreuleuse measuring point saw 6cm of new snowfall in the past seven days.
  • Forecasts for this week suggested precipitation in Sion will total 68mm this week, above the seasonal average of 29.9mm.
  • The latest Swiss hydrobalance is forecast to remain positive until at least the end of October. The balance is forecast to end this week at +2.71TWh, slightly revised up on the day from 2.64TWh. 
     
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Swiss hydropower reserves last week – calendar week 41 – increased by 3.1 percentage points to 85.7% of capacity, the highest level so far this year, while switching back to a surplus to the long-term average, BFE data showed. 

  • Stocks decreased by 0.4 points the week before.
  • Reserves narrowed the deficit to the five-year average to 0.2 points, compared with 4.1 points the week before.
  • Stocks switched to a surplus to the long -term average – since 1997 – to 0.4 points, compared to a deficit of 3.7 points the week before.
  • Swiss hydropower reserves peaked between early October and early November in the past five years.
  • Swiss hydropower generation from pumped storage last week increased by 404MW to 1.26GW. Run-of-river generation was broadly stable last week at 363MW, while output from reservoirs increased by 348MW to 1.53GW.
  • Nuclear generation in Switzerland was broadly stable last week at 2.56GW – the lowest weekly level in eight weeks.
  • Axpo’s 365MW Beznau 1 nuclear reactor is currently undergoing planned maintenance until 21 October. Works started on 28 September.
  • Power demand in Switzerland last week increased to 6.86GW, compared with 6.38GW the week before, as cooler weather has lifted heating demand.
  • Precipitation last week in the hydro-intensive region of Sion last week stood a 161mm, well above the 30-year normal of 36.3mm.
  • Looking ahead, the latest 6-10 day ECMWF weather forecast for Zurich suggested mean temperatures well above the seasonal normal this week, limiting demand for heating.
  • Milder weather in Sion this week is further limiting snowfall in Switzerland’s hydro intensive regions. The L'Ecreuleuse measuring point saw 6cm of new snowfall in the past seven days.
  • Forecasts for this week suggested precipitation in Sion will total 68mm this week, above the seasonal average of 29.9mm.
  • The latest Swiss hydrobalance is forecast to remain positive until at least the end of October. The balance is forecast to end this week at +2.71TWh, slightly revised up on the day from 2.64TWh.