Hannes Weigt

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We propose a price-cap mechanism for electricity-transmission expansion based on redefining transmission output in terms of financial transmission rights. Our mechanism applies the incentive-regulation logic of rebalancing a two-part tariff. First, we test this mechanism in a three-node network. We show that the mechanism intertemporally promotes an(More)
Water level fluctuations in lakes lead to shoreline displacement. The seasonality of flooding or beaching of the littoral area affects nutrient cycling, redox gradients in sediments, and life cycles of aquatic organisms. Despite the ecological importance of water level fluctuations, we still lack a method that assesses water levels in the context of(More)
This paper compares the results of different pricing systems in the German electricity sector. In particular, we compare a competitive nodal pricing approach to a cost minimization scenario under a uniform price. The model also simulates the effects of increasing offshore wind energy in the North Sea, from the current 0 GW to 8 and 13 GW, respectively. Our(More)
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(More)
Energy models play an increasing role in the ongoing energy transition processes either as tools for forecasting potential developments or for assessments of policy and market design options. In recent years, these models have increased in scope and scale and provide a reasonable representation of the energy supply side, technological aspects and general(More)
The overlapping impact of the Emission Trading System (ETS) and renewable energy (RE) deployment targets creates a classic case of interaction effects. Whereas the price interaction is widely recognized and has been thoroughly discussed, the effect of an overlapping instrument on the abatement attributable to an instrument has gained little attention. This(More)
Natural gas plays an important role in the future development of electricity markets as it is the least emission intensive fossil generation option while additionally providing the needed flexibility in plant operation to deal with intermittent renewable generation. As both the electricity and the natural gas market rely on networks, congestion on one(More)
The issue of electricity-natural gas interdependence is becoming a major energy policy and regulatory issue in all jurisdictions around the world. In this paper, we develop a model that looks at natural gas and electricity simultaneously, and apply it to the scenarios for European decarbonization at the horizon 2030/2050. The increased role of gas fired(More)
Rising prices in the German wholesale electricity market have spurred discussions about the potentials and the abuse of market power. Particularly since the introduction of emission certificates, electricity prices increased continuously closely related to rising certificate prices. The oligopolistic structure of the German market with four major players(More)