Linking Europe: The Role of the Swiss Electricity Transmission Grid until 2050

Schlecht, Ingmar; Weigt, Hannes

doi:10.1007/bf03399415

Cited by 15 publications

(9 citation statements)

References 11 publications

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“…The bag (inner polygon showing the Tukey depth) and the fence (outer polygon containing non-outliers) clearly differ between scenarios. The 2020 scenario has the narrowest bag and fence, thus confirming the flattening of peak-to-valley price ranges indicated also by previous models for price developments [34,35]. …”

Section: Conflicts Of Interestsupporting

confidence: 83%

“…In Switzerland, the electricity market liberalization commenced in 2009, which is why we chose 2010 as the first time point. For 2020 electricity prices, the Swiss electricity market model 'Swissmod' developed by Schlecht and Weigt [34,35] was used to derive a price profile for 2020 considering the European and Swiss energy trends. For the price level for 2020, the prices of the Phelix Peak Year Future for 2020 were used [36].…”

Section: Seasonal Water Levels In Large and Small Alpine Reservoirsmentioning

confidence: 99%

“…For the price level for 2020, the prices of the Phelix Peak Year Future for 2020 were used [36]. Because we were interested in the effect of changes in the electricity market on the WLF and the algal biomass, we only varied electricity and kept water inflows constant across years [34,35].…”

Section: Seasonal Water Levels In Large and Small Alpine Reservoirsmentioning

confidence: 99%

“…Hourly prices were nested within months and months within years. More specific information of seasonal price developments are discussed in detail elsewhere [34,35].…”

Section: Statisticsmentioning

confidence: 99%

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Integrating Economic and Ecological Benchmarking for a Sustainable Development of Hydropower

et al. 2016

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Abstract:Hydropower reservoirs play an increasingly important role for the global electricity supply. Reservoirs are anthropogenically-dominated ecosystems because hydropower operations induce artificial water level fluctuations (WLF) that exceed natural fluctuations in frequency and amplitude. These WLF have detrimental ecological effects, which can be quantified as losses to ecosystem primary production due to lake bottoms that fall dry. To allow for a sustainable development of hydropower, these "ecological costs" of WLF need to be weighed against the "economic benefits" of hydropower that can balance and store intermittent renewable energy. We designed an economic hydropower operation model to derive WLF in large and small reservoirs for three different future energy market scenarios and quantified the according losses in ecosystem primary production in semi-natural outdoor experiments. Our results show that variations in market conditions affect WLF differently in small and large hydropower reservoirs and that increasing price volatility magnified WLF and reduced primary production. Our model allows an assessment of the trade-off between the objectives of preserving environmental resources and economic development, which lies at the core of emerging sustainability issues.

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Section: Conflicts Of Interestsupporting

confidence: 83%

Section: Seasonal Water Levels In Large and Small Alpine Reservoirsmentioning

confidence: 99%

Section: Seasonal Water Levels In Large and Small Alpine Reservoirsmentioning

confidence: 99%

“…Hourly prices were nested within months and months within years. More specific information of seasonal price developments are discussed in detail elsewhere [34,35].…”

Section: Statisticsmentioning

confidence: 99%

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Integrating Economic and Ecological Benchmarking for a Sustainable Development of Hydropower

et al. 2016

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“…To obtain a more accurate representation of the Swiss electricity system, we substantially update the input data from the original Schlecht and Weigt [23,41] Swissmod model. We update the transmission grid with data from swisstopo [42] and cross-check it with the ENTSO-E Transmission System Map [43].…”

Section: Electricity System Scenariosmentioning

confidence: 99%

The Impact of Climate Change on Swiss Hydropower

et al. 2018

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Abstract:Hydropower represents an important pillar of electricity systems in many countries. It not only plays an important role in mitigating climate change, but is also subject to climate-change impacts. In this paper, we use the Swiss electricity market model Swissmod to study the effects of changes in water availability due to climate change on Swiss hydropower. Swissmod is an electricity dispatch model with a plant-level representation of 96% of Swiss hydropower plants and their interrelations within cascade structures. Using this detailed model in combination with spatially disaggregated climate-change runoff projections for Switzerland, we show that climate change has ambiguous impacts on hydropower and on the overall electricity system. Electricity prices and overall system costs increase under dry conditions and decrease under average or wet conditions. While the change of seasonal patterns, with a shift to higher winter runoff, has positive impacts, the overall yearly inflow varies under hydrological conditions. While average and wet years yield an increase in inflows and revenues, dry years become drier, resulting in the opposite effect. Even though different in magnitude, the direction of impacts persists when applying the same changes in inflows to the 2050 electricity system.

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