TY - GEN A1 - Müsgens, Felix A1 - Radke, Silvian M. A1 - Panitz, Felix T1 - Solar infeed during low demand hours - a problem? T2 - 2025 21st International Conference on the European Energy Market (EEM) N2 - This paper addresses negative electricity prices resulting from the integration of renewable energy sources into power systems. We show that a significant share of renewable capacity, particularly solar and wind, are unresponsive to negative prices. The study presents two scenarios for future excess generation in the German electricity system: a business-as-usual scenario and a scenario with enhanced demand-side flexibility. Results show that without increased demand flexibility, the system could face excess generation, i.e. supply exceeding demand at the lowest price currently allowed (−500E/MWh), of up to 15 GW by 2027, with negative prices causing significant market disruption. Conversely, the extended demand flexibility scenario could mitigate these issues significantly. The findings underscore the necessity for demand-side flexibility and efficient curtailment of RES output. KW - Flexibility KW - Intermittent Generation KW - Renewable Energy Sources KW - Negative Electricity Prices Y1 - 2025 SN - 979-8-3315-1278-1 U6 - https://doi.org/10.1109/EEM64765.2025.11050359 SN - 2165-4093 SN - 2165-4077 SP - 1 EP - 6 PB - IEEE CY - Piscataway, NJ ER - TY - RPRT A1 - Müsgens, Felix A1 - Lienert, Martin T1 - Voraussetzungen einer optimalen Integration erneuerbarer Energien in das Stromversorgungssystem KW - Voraussetzungen einer optimalen erneuerbarer Energie, Stromversorgungssystem Y1 - 2010 UR - http://www.bmwi.de/BMWi/Navigation/Service/publikationen,did=349366.html CY - Köln [u.a.] ER - TY - RPRT A1 - Müsgens, Felix A1 - Lienert, Martin T1 - Förderung der Direktvermarktung und der bedarfsgerechten Einspeisung von Strom aus Erneuerbaren Energien KW - Direktvermarktung KW - Einspeisung Strom KW - Erneuerbare Energien Y1 - 2010 CY - Köln [u.a.] ER - TY - RPRT A1 - Müsgens, Felix A1 - Lienert, Martin A1 - Hildebrandt, Elmar T1 - Ökonomische Auswirkungen einer Laufzeitverlängerung deutscher Kernkraftwerke KW - Oekonomische Auswirkungen KW - Laufzeitverlängerung KW - Kernkraftwerk Y1 - 2010 PB - BDI CY - Köln [u.a.] ER - TY - GEN A1 - Müsgens, Felix A1 - Bade, Alexander T1 - Optimierungsstrategien im Portfoliomanagement von Gasversorgungsunternehmen T2 - GWF : das Gas- und Wasserfach KW - Optimierungsstrategien KW - Portfoliomanagement KW - Gasversorgungsunternehmen Y1 - 2010 SN - 0016-4909 VL - 151 IS - 11 SP - 732 EP - 736 ER - TY - GEN A1 - Müsgens, Felix A1 - Peek, Markus T1 - Sind Kapazitätsmärkte in Deutschland erforderlich? - Eine kritische Analyse vor dem Hintergrund der ökonomischen Theorie T2 - Zeitschrift für neues Energierecht KW - Kapazitaetsmaerkte KW - Deutschland KW - ökonomischen Theorie Y1 - 2011 SN - 1434-3339 VL - 15 IS - 6 SP - 576 EP - 583 ER - TY - GEN A1 - Müsgens, Felix A1 - Steinhaus, Burkhard T1 - Portfoliomanagement: Optimale Energiebeschaffung unter Beruecksichtigung von Risiken KW - Portfoliomanagement KW - Energiebeschaffung Y1 - 2010 ER - TY - GEN A1 - Kreuz, Sebastian A1 - Müsgens, Felix A1 - Wissen, Ralf T1 - Was kosten die EEG-Bestandsanlagen bis 2030? T2 - Energiewirtschaftliche Tagesfragen : ET Y1 - 2014 VL - 64 IS - 9 SP - 60 EP - 63 ER - TY - GEN A1 - Müsgens, Felix A1 - Peek, Markus T1 - Economics and Design of Balancing Power Markets in Germany T2 - International Journal of Electrical Power & Energy Systems Y1 - 2014 SN - 2070-3767 IS - 55 SP - 392 EP - 401 ER - TY - GEN A1 - Müsgens, Felix A1 - Grothe, Oliver T1 - The Influence of Spatial Effects on Wind Power Revenues under Direct Marketing Rules T2 - Energy Policy N2 - In many countries, investments in renewable technologies have been accelerated by fixed feed-in tariffs for electricity from renewable energy sources (RES). While fixed tariffs accomplish this purpose, they lack incentives to align the RES production with price signals. Today, the intermittency of most RES increases the volatility of electricity prices and makes balancing supply and demand more complicated. Therefore, support schemes for RES have to be modified. Recently, Germany launched a scheme which gives wind power operators the monthly choice to either receive a fixed tariff or to risk a – subsidized – access to the wholesale electricity market. This paper quantifies revenues of wind turbines under this new subsidy and analyzes whether, when and where producers may profit. We find that the position of the wind turbine within the country significantly influences revenues in terms of EUR/MWh. The results are important for wind farm operators deciding whether electricity should be sold in the fixed feed-in tariff or in the wholesale market. However, no location is persistently, i.e., in every calendar month of the year, above the average. This limits the effect of the new subsidy scheme on investment locations and long term improvements in the aggregated wind feed-in profile. Y1 - 2013 U6 - https://doi.org/10.1016/j.enpol.2013.03.004 SN - 0301-4215 IS - 58 SP - 237 EP - 247 ER -