Research output

IoT-enabled interoperability for energy-mobility integration: A systematic review of protocols, platforms, and standards

X. Liu, R. Liu, X. Zhang, A. G. Abate, P. S. Nielsen, D. Keles

Applied Energy 411, 127611 DOI

Role of flexible demand and battery energy storage in spot price formation in future energy markets

N. Anand, L. Bork, R. M. M. Slot, D. Keles

2026 22nd International Conference on the European Energy Market (EEM) 1–5 Conference paper DOI

Bidding strategies for energy storage operators in a 100% renewable electricity market: A game-theoretic approach

A. G. Abate, D. Keles, X. Liu, S. Hassi, X.-B. Zhang

Omega, vol. 145 DOI

Comparative analysis of price-maker bidding strategies in electricity markets in the context of rising share of new technologies

H. Mantke, J. C. De Blauwe, G. Frey, D. Keles, M. Deissenroth-Uhrig

Energy Strategy Reviews, vol. 65 DOI

Electricity supply and demand in the European market: the effect on generation adequacy in a dunkelflaute period

A. C. Beck-Bang, S. B. Overgaard, D. Keles

Energy Policy, vol. 208 DOI

Hydrogen Subsidies in Hard-to-Abate Sectors: Impacts of Premium Design and Energy System Integration

T. Madsen, F. Fertin, C. Bergaentzlé, R. Bramstoft, D. Keles

22nd International Conference on the European Energy Market (EEM), IEEE Conference paper DOI

Investigating the impact of tariff structures on the value and combined scheduling of storage and intermittent renewables using stochastic dynamic programming

P. Quaghebeur, D. Keles

Energy Policy, vol. 219 DOI

Cross-border effects on electricity spot prices - a meta-study

J. De Blauwe, M. Deissenroth-Uhrig, H. Mantke, D. Keles

Renewable and Sustainable Energy Reviews 224, 116094 DOI

Design and evaluation of policy schemes supporting waste-heat recovery into district heating networks

J. Jerez Monsalves, C. Bergaentzlé, P. Pisciella, E. Saber, D. Keles

Applied Energy 399, 126517 DOI

European or national-level emission reduction policy? Effectiveness and energy system implications

T. Madsen, I. Kountouris, R. Bramstoft, P. Koundouri, D. Keles

Applied Energy 388, 125672 DOI

Investigating empirical bidding curves in the electricity spot market: Expected patterns vs anomalies?

J. De Blauwe, X. Zhang, D. Keles

Energy Economics 152, 109002 DOI

Renewable hydrogen and ammonia production: Location-specific considerations and competitive market dynamics in Europe

I. Kountouris, M. Forcellati, I. Pantelidis, D. Keles

Applied Energy 397, 126168 DOI

Saving gas through cross-border renewable and nuclear electricity generation

C. Halser, D. Keles, F. Paraschiv

Environmental Research Letters 20(2), 024035 DOI

The Impact of Two-Sided Contracts for Difference on Debt Sizing for Offshore Wind Farms

M. Đukan, D. Keles, L. Kitzing

The Energy Journal 46(5), 145–188 DOI

Can electric vehicle charging be carbon neutral? Uniting smart charging and renewables

C. Will, F. Zimmermann, A. Ensslen, C. Fraunholz, P. Jochem, D. Keles

Applied Energy 371, 123549 DOI

Dispatch strategies for large-scale heat pump based district heating under high renewable share and risk-aversion: A multistage stochastic optimization approach

M. B. Siddique, D. Keles, F. Scheller, P. S. Nielsen

Energy Economics 136, 107764 DOI

Does the purchase of voluntary renewable energy certificates lead to emission reductions? A review of studies quantifying the impact

L. Langer, M. Brander, S. M. Lloyd, D. Keles, H. D. Matthews, A. Bjørn

Journal of Cleaner Production 478, 143791 DOI

Green or greedy: the relationship between perceived benefits and homeowners’ intention to adopt residential low-carbon technologies

F. Scheller, K. Morrissey, K. Neuhoff, D. Keles

Energy Research & Social Science 108, 103388 DOI

Offshore Market Design in Integrated Energy systems: A Case Study on the North Sea Region towards 2050

J. Gea-Bermúdez, L. Kitzing, D. Keles

The Energy Journal 45(4) DOI

Perception of district heating in Europe: A deep dive into influencing factors and the role of regulation

A. Billerbeck, B. Breitschopf, S. Preuß, J. Winkler, M. Ragwitz, D. Keles

Energy Policy 184, 113860 DOI

Perspectives on green hydrogen in Europe—during an energy crisis and towards future climate neutrality

M. Münster, R. Bramstoft, I. Kountouris, L. Langer, D. Keles, R. Schlautmann, et al.

Oxford Open Energy 3, oiae001 DOI

Risks, strategies, and benefits of offshore energy hubs: A literature-based survey

A. Lüth, D. Keles

Renewable and Sustainable Energy Reviews 203, 114761 DOI

The complementary role of energy system and power grid models: An analysis of the European energy transformation from a holistic perspective

J. Lotze, M. Moser, G. Savvidis, D. Keles, V. Hagenmeyer

Energy Conversion and Management 315, 118761 DOI

Waste-heat recovery utilisation for district heating systems under diverse pricing schemes: A bi-level modelling approach

J. Jerez Monsalves, C. Bergaentzlé, D. Keles

Applied Energy 375, 124032 DOI

A unified European hydrogen infrastructure planning to support the rapid scale-up of hydrogen production

I. Kountouris, R. Bramstoft, T. Madsen, J. Gea-Bermúdez, M. Münster, D. Keles, et al.

Nature Communications 15(1), 5517 260 citations DOI

Denmark as the Energy Island Pioneer

Report

Economic feasibility of data center waste-heat integration into district heating: what does it require?

J. J. Monsalves, C. Bergaenztlé, D. Keles

2023 19th International Conference on the European Energy Market (EEM) 1–6 Conference paper DOI

Future role and economic benefits of hydrogen and synthetic energy carriers in Germany: a review of long-term energy scenarios

F. Scheller, S. Wald, H. Kondziella, P. A. Gunkel, T. Bruckner, D. Keles

Sustainable Energy Technologies and Assessments 56, 103037 DOI

Future-proof electricity prices for consumers

C. Bergaentzlé, D. Keles

Samfundsøkonomen 2023(3), 73–83 DOI

Grid tariff designs to address electrification and their allocative impacts

P. A. Gunkel, C.-M. Bergaentzlé, D. Keles, F. Scheller, H. K. Jacobsen

Utilities Policy 85, 101676 DOI

Impacts of earlier natural gas phase-out & heat-saving policies on district heating and the energy system

M. B. Siddique, P. S. Nielsen, M. B. Rosendal, I. G. Jensen, D. Keles

Energy Policy 174, 113441 DOI

Impacts of flexible-cooling and waste-heat recovery from data centres on energy systems: A Danish case study

J. Jerez Monsalves, C. Bergaentzlé, D. Keles

Energy 281, 128112 DOI

Integration of Data Centers as Active Entities into Energy Systems Modeling

J. Jerez Monsalves, J. Gea-Bermúdez, C. Bergaentzlé, D. Keles

Lecture Notes in Operations Research 237–244 Conference paper DOI

Renewable fuel regulation: Implications for e-fuel production infrastructure in energy hubs

L. Langer, I. Kountouris, R. Bramstoft, M. Münster, D. Keles

2023 19th International Conference on the European Energy Market (EEM) 1–16 Conference paper DOI

State or market: Investments in new nuclear power plants in France and their domestic and cross-border effects

F. Zimmermann, D. Keles

Energy Policy 173, 113403 DOI

Success factors in off-grid energy auctions: A comparative analysis of selected cases from low- and middle-income countries

M. Backer, D. Keles, C. Bergaentzlé

Renewable and Sustainable Energy Reviews 183, 113350 DOI

The economic impacts of integrating European balancing markets: The case of the newly installed aFRR energy market-coupling platform PICASSO

M. Backer, D. Keles, E. Kraft

Energy Economics 128, 107124 DOI

Towards a more collaborative energy system modelling for addressing Europe's energy transition challenges.

Report

Uniform taxation of electricity: incentives for flexibility and cost redistribution among household categories

P. A. Gunkel, F. Kachirayil, C.-M. Bergaentzlé, R. McKenna, D. Keles, H. K. Jacobsen

Energy Economics 127, 107024 DOI

Stochastic optimization of trading strategies in sequential electricity markets

E. Kraft, M. Russo, D. Keles, V. Bertsch

European Journal of Operational Research 308(1), 400–421 92 citations DOI

Power-to-X in energy hubs: A Danish case study of renewable fuel production

I. Kountouris, L. Langer, R. Bramstoft, M. Münster, D. Keles

Energy Policy 175, 113439 83 citations DOI

Power-to-gas: Decarbonization of the European electricity system with synthetic methane

H. Ü. Yilmaz, S. O. Kimbrough, C. van Dinther, D. Keles

Applied Energy 323, 119538 DOI

Decarbonisation Pathways for District Heating Sector: A Policy and Private Business Perspective.

43rd IAEE International Conference, Tokyo, Japan, 31/07/2022 Conference paper

Evaluation of photovoltaic storage systems on energy markets under uncertainty using stochastic dynamic programming

D. Keles, J. Dehler-Holland

Energy Economics 106, 105800 DOI

Impacts of Demand Response and Surplus Heat Recovery in Data Centres on the Danish Energy System

43rd IAEE International Conference, Tokyo, Japan, 31/07/2022 Conference paper

Requirements for a maritime transition in line with the Paris Agreement

S. Franz, N. Campion, S. Shapiro-Bengtsen, R. Bramstoft, D. Keles, M. Münster

iScience 25(12), 105630 DOI

Short-term risk management of electricity retailers under rising shares of decentralized solar generation

M. Russo, E. Kraft, V. Bertsch, D. Keles

Energy Economics 109, 105956 DOI

Testing for non-linear willingness to accept compensation for controlled electricity switch-offs using choice experiments

J. Ladenburg, K. L. Jensen, C. Lodahl, D. Keles

Energy 238, 121749 DOI

Assessing technology legitimacy with topic models and sentiment analysis – The case of wind power in Germany

J. Dehler-Holland, M. Okoh, D. Keles

Technological Forecasting and Social Change 175, 121354 108 citations DOI

Diffusion and system impact of residential battery storage under different regulatory settings

D. Fett, C. Fraunholz, D. Keles

Energy Policy 158, 112543 DOI

Cross-border Effects of Capacity Remuneration Mechanisms: The Swiss Case

F. Zimmermann, A. Bublitz, D. Keles, W. Fichtner

The Energy Journal 42(2), 53–90 DOI

A statistical approach to identify asynchronous extreme events for multi-regional energy system models

P. Minh Khuong, H. Ü. Yilmaz, R. McKenna, D. Keles

International Journal of Energy Sector Management 15(2), 352–384 DOI

On the role of electricity storage in capacity remuneration mechanisms

C. Fraunholz, D. Keles, W. Fichtner

Energy Policy 149, 112014 DOI

Advanced price forecasting in agent-based electricity market simulation

C. Fraunholz, E. Kraft, D. Keles, W. Fichtner

Applied Energy 290, 116688 97 citations DOI

On the long-term efficiency of market splitting in Germany

C. Fraunholz, D. Hladik, D. Keles, D. Möst, W. Fichtner

Energy Policy 149, 111833 70 citations DOI

Modeling of frequency containment reserve prices with econometrics and artificial intelligence

E. Kraft, D. Keles, W. Fichtner

Journal of Forecasting 39(8), 1179–1197 DOI

Evaluation of the Administrative Phase-Out of Coal Power Plants on the Italian Electricity Market

M. Fiorelli, D. Keles, F. Montana, G. L. Restifo, E. Riva Sanseverino, G. Zizzo

Energies 13(18), 4596 DOI

Cross-border effects in interconnected electricity markets - an analysis of the Swiss electricity prices

D. Keles, J. Dehler-Holland, M. Densing, E. Panos, F. Hack

Energy Economics 90, 104802 DOI

Decarbonisation through coal phase-out in Germany and Europe – Impact on emissions, electricity prices and power production

D. Keles, H. Yilmaz

Energy Policy 141, 111472 119 citations DOI

Reducing energy time series for energy system models via self-organizing maps

H. Ü. Yilmaz, E. Fouché, T. Dengiz, L. Krauß, D. Keles, W. Fichtner

it – Information Technology 61(2-3), 125–133 DOI

A survey on electricity market design: Insights from theory and real-world implementations of capacity remuneration mechanisms

A. Bublitz, D. Keles, F. Zimmermann, C. Fraunholz, W. Fichtner

Energy Economics 80, 1059–1078 331 citations DOI

Analysis of Bidding Strategies in the German Control Reserve Market

E. Kraft, D. Keles, W. Fichtner

2018 15th International Conference on the European Energy Market (EEM) 1–6 Conference paper DOI

Self-Consumption Potentials of Existing PV Systems in German Households

D. Fett, M. Neu, D. Keles, W. Fichtner

2018 15th International Conference on the European Energy Market (EEM) 1–5 Conference paper DOI

Analysis of the power-to-heat potential in the European energy system

H. Yilmaz, D. Keles, A. Chiodi, R. Hartel, M. Mikulić

Energy Strategy Reviews 20, 6–19 73 citations DOI

Case Study

L. Renz, R. Hartel, D. Keles, W. Fichtner, H. Keko

In: Europe's Energy Transition – Insights for Policy Making, pp. 131–139 Book chapter DOI

Conclusions and Outlook

D. Keles

In: Europe's Energy Transition – Insights for Policy Making, pp. 141–143 Book chapter DOI

Europe's energy transition: Insights for policy making

Europe's Energy Transition: Insights for Policy Making Book DOI

Impact on Electricity Markets

P. Deane, S. Collins, B. Ó. Gallachóir, C. Eid, R. Hartel, D. Keles, W. Fichtner

In: Europe's Energy Transition – Insights for Policy Making, pp. 105–118 Book chapter DOI

Introduction

D. Keles

In: Europe's Energy Transition – Insights for Policy Making, pp. 93–95 Book chapter DOI

Market Design Options for Promoting Low-Carbon Technologies

R. Hartel, D. Keles, W. Fichtner

In: Europe's Energy Transition – Insights for Policy Making, pp. 119–130 Book chapter DOI

Meeting the Modeling Needs of Future Energy Systems

D. Keles, P. Jochem, R. McKenna, M. Ruppert, W. Fichtner

Energy Technology 5(7), 1007–1025 DOI

Price-based versus load-smoothing pumped storage operation: Long-term impacts on generation adequacy

C. Fraunholz, F. Zimmermann, D. Keles, W. Fichtner

2017 14th International Conference on the European Energy Market (EEM) 1–6 Conference paper DOI

How to benefit from a common European electricity market design

P. Ringler, D. Keles, W. Fichtner

Energy Policy 101, 629–643 146 citations DOI

An analysis of the decline of electricity spot prices in Europe: Who is to blame?

A. Bublitz, D. Keles, W. Fichtner

Energy Policy 107, 323–336 141 citations DOI

Self-consumption of electricity from renewable sources

J. Dehler, D. Keles, T. Telsnig, B. Fleischer, M. Baumann, D. Fraboulet, et al.

In: Europe's Energy Transition – Insights for Policy Making, pp. 225–236 Book chapter 83 citations DOI

An analysis of long-term impacts of demand response on investments in thermal power plants and generation adequacy

F. Zimmermann, A. Bublitz, D. Keles, J. Dehler, W. Fichtner

2016 13th International Conference on the European Energy Market (EEM) 1–5 Conference paper DOI

Extreme value theory for heavy tails in electricity prices

F. Paraschiv, R. Hadzi-Mishev, D. Keles

The Journal of Energy Markets 9(2), 21–50 DOI

Extended forecast methods for day-ahead electricity spot prices applying artificial neural networks

D. Keles, J. Scelle, F. Paraschiv, W. Fichtner

Applied Energy 162, 218–230 384 citations DOI

Agent-based modelling and simulation of smart electricity grids and markets – A literature review

P. Ringler, D. Keles, W. Fichtner

Renewable and Sustainable Energy Reviews 57, 205–215 319 citations DOI

Analysis of design options for the electricity market: The German case

D. Keles, A. Bublitz, F. Zimmermann, M. Genoese, W. Fichtner

Applied Energy 183, 884–901 117 citations DOI

An assessment of the newly proposed strategic reserve in Germany

A. Bublitz, L. Renz, D. Keles, M. Genoese, W. Fichtner

2015 12th International Conference on the European Energy Market (EEM) 1–5 Conference paper DOI

Agent-Based Simulation of Interrelated Wholesale Electricity Markets

A. Bublitz, P. Ringler, M. Genoese, D. Keles, W. Fichtner

2014 25th International Workshop on Database and Expert Systems Applications 103–108 Conference paper DOI

Uncertainties in energy markets and their consideration in energy storage evaluation

Uncertainties in Energy Markets and their Consideration in Energy Storage Evaluation Book DOI

A combined modeling approach for wind power feed-in and electricity spot prices

D. Keles, M. Genoese, D. Möst, S. Ortlieb, W. Fichtner

Energy Policy 59, 213–225 71 citations DOI

Comparison of extended mean-reversion and time series models for electricity spot price simulation considering negative prices

D. Keles, M. Genoese, D. Möst, W. Fichtner

Energy Economics 34(4), 1012–1032 141 citations DOI

The development of the German energy market until 2030—A critical survey of selected scenarios

D. Keles, D. Möst, W. Fichtner

Energy Policy 39(2), 812–825 DOI

A survey of stochastic modelling approaches for liberalised electricity markets

D. Möst, D. Keles

European Journal of Operational Research 207(2), 543–556 198 citations DOI

Infrastructure investment for a transition to hydrogen automobiles

J. Köhler, M. Wietschel, L. Whitmarsh, D. Keles, W. Schade

Technological Forecasting and Social Change 77(8), 1237–1248 144 citations DOI

Infrastructure investment for a transition to hydrogen road vehicles

J. Kohler, M. Wietschel, L. Whitmarsh, D. Keles, W. Schade

2008 First International Conference on Infrastructure Systems and Services: Building Networks for a Brighter Future (INFRA) 1–6 Conference paper DOI

Market penetration of fuel cell vehicles – Analysis based on agent behaviour

D. Keles, M. Wietschel, D. Möst, O. Rentz

International Journal of Hydrogen Energy 33(16), 4444–4455 114 citations DOI