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124 results, from 51
Diskussionspapiere 1769 / 2018

Flexible Electricity Use for Heating in Markets with Renewable Energy

Using electricity for heating can contribute to decarbonization and provide flexibility to integrate variable renewable energy. We analyze the case of electric storage heaters in German 2030 scenarios with an open-source electricity sector model. Making customary night-time storage heaters temporally more flexible offers only moderate benefits because renewable availability during daytime is

2018| Wolf-Peter Schill, Alexander Zerrahn
Diskussionspapiere 1677 / 2017

Power-to-Heat for Renewable Energy Integration: Technologies, Modeling Approaches, and Flexibility Potentials

Flexibly coupling power and heat sectors may contribute to both renewable energy integration and decarbonization. We present a literature review of modelbased analyses in this field, focusing on residential heating. We compare geographical and temporal research scopes and identify state-of-the-art analytical model formulations, particularly concerning heat pumps and thermal storage. While

2017| Andreas Bloess, Wolf-Peter Schill, Alexander Zerrahn
Diskussionspapiere 1637 / 2017

Prosumage of Solar Electricity: Pros, Cons, and the System Perspective

We examine the role of prosumage of solar electricity, i.e. PV self-generation combined with distributed storage, in the context of the low-carbon energy transformation. First, we devise a qualitative account of arguments in favor of and against prosumage. Second, we give an overview of prosumage in Germany. Prosumage will likely gain momentum as support payments expire for an increasing share of

2017| Wolf-Peter Schill, Alexander Zerrahn, Friedrich Kunz
Diskussionspapiere 1621 / 2016

Do Benefits from Dynamic Tariffing Rise? Welfare Effects of Real-Time Pricing under Carbon-Tax-Induced Variable Renewable Energy Supply

Common intuition holds that retail real-time pricing (RTP) of electricity demand should become more beneficial in markets with high variable renewable energy (VRE) supply mainly due to increased price volatility. Using German market data, we test this intuition by simulating long-run electricity market equilibria with carbon-tax-induced VRE investment and real-time price responsive and

2016| Christian Gambardella, Michael Pahle, Wolf-Peter Schill
Diskussionspapiere 1540 / 2016

On Start-up Costs of Thermal Power Plants in Markets with Increasing Shares of Fluctuating Renewables

The emerging literature on power markets with high shares of fluctuating renewables suggests that more frequent start-up procedures of thermal power plants may become an increasing concern, both for costs and possibly also for market design. Based on official scenario assumptions, we investigate how start-ups and related costs develop in Germany, where the share of fluctuating renewables

2016| Wolf-Peter Schill, Michael Pahle, Christian Gambardella
Diskussionspapiere 1507 / 2015

When Low Market Values Are No Bad News: On the Coordination of Renewable Support and Real-Time Pricing

We analyze the interactions between different renewable support schemes and the benefits of real-time pricing (RTP) using a stylized economic model with a detailed demand-side representation calibrated to the German market. We find that there are considerable differences between a market premium on energy and capacity regarding wholesale prices, support levies and market values, which are all

2015| Michael Pahle, Wolf-Peter Schill, Christian Gambardella, Oliver Tietjen
Diskussionspapiere 1495 / 2015

A Coordinated Strategic Reserve to Safeguard the European Energy Transition

In Germany and beyond, various capacity mechanisms are currently being discussed with a view to improving the security of electricity supply. One of these mechanisms is a strategic reserve that retains generation capacity for use in times of critical supply shortage. We argue that strategic reserves have specific advantages compared to other capacity mechanisms in the context of the European

2015| Karsten Neuhoff, Jochen Diekmann, Friedrich Kunz, Sophia Rüster, Wolf-Peter Schill, Sebastian Schwenen
Diskussionspapiere 1457 / 2015

A Greenfield Model to Evaluate Long-Run Power Storage Requirements for High Shares of Renewables

We develop a dispatch and investment model to study the role of power storage and other flexibility options in a greenfield setting with high shares of renewables. The model captures multiple system values of power storage related to arbitrage, dispatchable capacity, and reserves. In a baseline scenario, we find that power storage requirements remain moderate up to a renewable share of around 80%,

2015| Alexander Zerrahn, Wolf-Peter Schill
Diskussionspapiere 1442 / 2015

Power System Impacts of Electric Vehicles in Germany: Charging with Coal or Renewables?

We analyze future scenarios of integrating electric vehicles (EV) into the German power system, drawing on different assumptions on the charging mode. We use a numerical dispatch model with a unit-commitment formulation which minimizes dispatch costs over a full year. While the overall energy demand of the EV fleets is rather low in all scenarios, the impact on the system’s load duration curve

2015| Wolf-Peter Schill, Clemens Gerbaulet
Diskussionspapiere 1402 / 2014

Power System Transformation toward Renewables: Investment Scenarios for Germany

We analyze distinctive investment scenarios for the integration of fluctuating renewables in the German power system. Using a combined model for dispatch, transmission, and investment, three different investment options are considered, including gas-fired power plants, pumped hydro storage, and transmission lines. We find that geographically optimized power plant investments dominate in the

2014| Jonas Egerer, Wolf-Peter Schill
124 results, from 51