Matthias Hofmann

About

I am a PhD candidate currently conducting an industrial PhD while employed at the Norwegian transmission system operator, Statnett. My academic background lies in industrial engineering and management, and I have previously worked extensively on power system analyses and research and development projects at both SINTEF and Statnett before embarking on my PhD journey.

Research

Implicit demand-side flexibility as an alternative to investments in the transmission grid

The correct socio-economic choice between grid investment and the use of demand flexibility is dependent on good knowledge about the price and availibility of this flexibility in the future. My thesis aims to provide this knowledge by looking at the price sensitivity of consumers (households, commercial, and public buildings) and their response to various price signals. These results can be used to provide better forecasts for maximum demand, including flexibility in urban areas. Better forecasts are important to assess whether there is a need for increased capacity in the grid.

Main research objective

The research will provide knowledge on the potential of implicit demand flexibility to reduce peak load in the transmission grid, thereby presenting an alternative to grid investments. The research is mainly focused on households and other small end users in city regions. In addition, the project will be limited to implicit demand flexibility, meaning demand response triggered by price signals such as variable power prices, grid tariffs and demand response programs.

Description of the research

The research is based on the analysis of empirical data from different sources, such as data from Statnetts operations, Elhub, Nordpool, existing demo projects, surveys and the design and execution of an experiment on implicit demand flexibility. Statistical analyses will be used to quantify the existing and future price response of the end users.

At the start of the PhD, an experimental approach was chosen to collect data on how households respond to electricity prices that were not observed in real-world situations. After the summer of 2021, electricity prices rose significantly and exhibited substantial intraday variability, and the price response in a real-world context was studied. In addition, a simulation-based approach was used to gain insights into the effectiveness of various grid tariffs. In this approach, the demand response was simulated using actual electricity demand data within a cost-minimising optimisation model.

Innovation potential and possible applications

This research is particularly beneficial for industry stakeholders and policymakers in Norway, including Statnett, grid companies, and regulators. It provides insights into the potential of implicit demand response for reducing peak demand and freeing up grid capacity. The findings could be applied in designing better grid tariffs and developing new instruments like a critical peak rebate demand response program. Moreover, the results can be applied to demand forecasts and grid connection assessments when analysing the available grid capacity for new electricity consumers.

Electricity Markets and Energy System Planning – EMESP

Publications

2024

Hofmann, Matthias; Lindberg, Karen Byskov. (2024) Residential demand response and dynamic electricity contracts with hourly prices: A study of Norwegian households during the 2021/22 energy crisis. Smart Energy
Academic article
Hofmann, Matthias; Lindberg, Karen Byskov. (2024) Evidence of households' demand flexibility in response to variable hourly electricity prices – Results from a comprehensive field experiment in Norway. Energy Policy
Academic article

2023

Hofmann, Matthias; Bjarghov, Sigurd Nikolai; Nessa, Stian. (2023) Norwegian hourly residential electricity demand data with consumer characteristics during the European energy crisis. Data in Brief
Academic article
Hofmann, Matthias; Siebenbrunner, Turid. (2023) A rich dataset of hourly residential electricity consumption data and survey answers from the iFlex dynamic pricing experiment. Data in Brief
Academic article

2022

Bjarghov, Sigurd Nikolai; Hofmann, Matthias. (2022) Grid Tariffs for Peak Demand Reduction: Is there a Price Signal Conflict with Electricity Spot Prices?. Institute of Electrical and Electronics Engineers (IEEE)
Academic chapter/article/Conference paper

2021

Hofmann, Matthias; Lindberg, Karen Byskov. (2021) Do households react to variable power prices? – Results from a Norwegian pricing experiment . IEEE (Institute of Electrical and Electronics Engineers)
Academic chapter/article/Conference paper

2019

Hofmann, Matthias; Lindberg, Karen Byskov. (2019) Price elasticity of electricity demand in metropolitan areas – Case of Oslo. International Conference on the European Energy Market
Academic article
Wolfgang, Ove; Askeland, Magnus; Backe, Stian; Fagerstrøm, Jonathan; Crespo del Granado, Pedro; Hofmann, Matthias. (2019) Prosumers' role in the future energy system. NTNU/SINTEF
Report

2018

Wolfgang, Ove; Askeland, Magnus; Backe, Stian; Fagerstrøm, Jonathan; Crespo del Granado, Pedro; Hofmann, Matthias. (2018) Prosumers’ role in the future energy system. FME CenSES
Report
Wolfgang, Ove; Askeland, Magnus; Backe, Stian; Fagerstrøm, Jonathan; Del Granado, Pedro Crespo; Hofmann, Matthias. (2018) Prosumers' role in the future energy system. Center for Sustainable Energy Studies (CenSES), NTNU
Report

2017

Sperstad, Iver Bakken; Kolstad, Magne Lorentzen; Hofmann, Matthias. (2017) Technical documentation of version 3.3 of the NOWIcob tool. SINTEF Energi. Rapport (TR A7374)
Report
Sperstad, Iver Bakken; Kolstad, Magne Lorentzen; Hofmann, Matthias. (2017) User guide for Version 3.3 of the NOWIcob tool. SINTEF Energi. Rapport (TR A7372)
Report

2015

Bjørgum, Astrid; Welte, Thomas Michael; Hofmann, Matthias. (2015) Life cycle cost analysis for corrosion protective coatings -offshore wind turbines. Whittles Publishing
Chapter
Dinwoodie, Iain; Endrerud, Ole-Erik Vestøl; Hofmann, Matthias; Martin, Rebecca; Sperstad, Iver Bakken. (2015) Reference cases for verification of operation and maintenance simulation models for offshore wind farms. Wind Engineering : The International Journal of Wind Power
Academic article

2014

Sperstad, Iver Bakken; Halvorsen-Weare, Elin Espeland; Hofmann, Matthias; Nonås, Lars Magne; Stålhane, Magnus; Wu, MingKang. (2014) A Comparison of Single- and Multi-parameter Wave Criteria for Accessing Wind Turbines in Strategic Maintenance and Logistics Models for Offshore Wind Farms. Energy Procedia
Academic article
Hofmann, Matthias; Sperstad, Iver Bakken. (2014) Will 10 MW wind turbines bring down the operation and maintenance cost of offshore wind farms?. Energy Procedia
Academic article
Netland, Øyvind; Sperstad, Iver Bakken; Hofmann, Matthias; Skavhaug, Amund. (2014) Cost-benefit Evaluation of Remote Inspection of Offshore Wind Farms by Simulating the Operation and Maintenance Phase. Energy Procedia
Academic article

2013

Hofmann, Matthias; Kjølle, Gerd Hovin; Gjerde, Oddbjørn. (2013) Vulnerability indicators for electric power grids. SINTEF Energi. Rapport (TR A7276)
Report
Kjølle, Gerd Hovin; Gjerde, Oddbjørn; Hofmann, Matthias. (2013) Vulnerability and security in a changing power system. SINTEF Energi. Rapport (TR A7278)
Report
Hofmann, Matthias; Sperstad, Iver Bakken. (2013) NOWIcob - A tool for reducing the maintenance costs of offshore wind farms. Energy Procedia
Academic article
Hagen, Brede Andre Larsen; Simonsen, Ingve; Hofmann, Matthias; Muskulus, Michael. (2013) A multivariate Markov weather model for O&M simulation of offshore wind parks. Energy Procedia
Academic article
Hofmann, Matthias; Gjerde, Oddbjørn Idar; Kjølle, Gerd Hovin; Gramme, Eivind; Hernes, Johan G.; Foosnæs, Jan Andor. (2013) Developing indicators for monitoring vulnerability of power lines - case studies. CIRED - Congrès International des Réseaux Electriques de Distribution
Academic chapter/article/Conference paper

2012

Scheu, Matti Niclas; Matha, Denis; Hofmann, Matthias; Muskulus, Michael. (2012) Maintenance Strategies for Large Offshore Wind Farms. Energy Procedia
Academic article
Hofmann, Matthias. (2012) Framework for evaluation of access technology and logistics support. SINTEF Energi. Rapport (TR A7275)
Report
Hofmann, Matthias; Kjølle, Gerd Hovin. (2012) Konsekvenser av avbrudd i elektrisitets-forsyningen til kritisk infrastrukturUtarbeidet for Energi Norge AS. SINTEF Energi. Rapport (TR A7197)
Report
Hofmann, Matthias; Kjølle, Gerd Hovin; Gjerde, Oddbjørn Idar. (2012) Development of indicators to monitor vulnerabilities in power systems. Curran Associates, Inc.
Academic chapter/article/Conference paper
Hofmann, Matthias; Kjølle, Gerd Hovin. (2012) Konsekvenser av avbrudd i elektrisitets-forsyningen til kritisk infrastruktur. Fornybar Norge (346-2012)
Report
Kjølle, Gerd Hovin; Gjerde, Oddbjørn Idar; Hofmann, Matthias. (2012) Monitoring Vulnerability in Power Systems : extraordinary Events, Analysis Framework and Development of Indicators.
Academic chapter/article/Conference paper
Heggset, Jørn; Hofmann, Matthias. (2012) Operation and maintenance of offshore wind farms – trends and outlook. SINTEF Energi AS
Report

2011

Hofmann, Matthias. (2011) A Review of Decision Support Models for Offshore Wind Farms with an Emphasis on Operation and Maintenance Strategies. Wind Engineering : The International Journal of Wind Power
Academic article
Hofmann, Matthias; Gjerde, Oddbjørn Idar; Kjølle, Gerd Hovin. (2011) Vulnerability in electric power gridsState of the art and framework for vulnerability indicators. SINTEF Energi. Rapport (TR A7120)
Report
Kjølle, Gerd Hovin; Hofmann, Matthias. (2011) Viktig europeisk referanse: Kostnader knyttet til avbrudd og spenningsforstyrrelser. Xergi
Popular scientific article
Tveiten, Camilla Knudsen; Albrechtsen, Eirik; Heggset, Jørn; Hofmann, Matthias; Norddal, Per Kristian. (2011) HSE challenges related to offshore renewable energy. SINTEF Rapport
Report
Hofmann, Matthias; Gjerde, Oddbjørn Idar; Kjølle, Gerd Hovin. (2011) Vulnerability in electric power grids State of the art and framework for vulnerability indicators. Teknisk rapport (SINTEF Energiforskning) (TR A7120)
Report

2010

Hofmann, Matthias. (2010) State of the art of models for offshore wind farms with an emphasis on O&M strategies. SINTEF Rapport (TR A7013)
Report
Hofmann, Matthias; Seljeseth, Helge; Kjølle, Gerd Hovin; Volden, Gro Holst. (2010) Study on Estimation of Costs due to Electricity Interruptions and Voltage Disturbances. Teknisk rapport (SINTEF Energiforskning) (TR A6978)
Report
Hofmann, Matthias. (2010) State of the art of models for offshore wind farms with an emphasis on O&M strategies (D5.1-5). Teknisk rapport (SINTEF Energiforskning) (TR A7013)
Report

Journal publications

Hofmann, Matthias; Lindberg, Karen Byskov. (2024) Residential demand response and dynamic electricity contracts with hourly prices: A study of Norwegian households during the 2021/22 energy crisis. Smart Energy
Academic article
Hofmann, Matthias; Lindberg, Karen Byskov. (2024) Evidence of households' demand flexibility in response to variable hourly electricity prices – Results from a comprehensive field experiment in Norway. Energy Policy
Academic article
Hofmann, Matthias; Bjarghov, Sigurd Nikolai; Nessa, Stian. (2023) Norwegian hourly residential electricity demand data with consumer characteristics during the European energy crisis. Data in Brief
Academic article
Hofmann, Matthias; Siebenbrunner, Turid. (2023) A rich dataset of hourly residential electricity consumption data and survey answers from the iFlex dynamic pricing experiment. Data in Brief
Academic article
Hofmann, Matthias; Lindberg, Karen Byskov. (2019) Price elasticity of electricity demand in metropolitan areas – Case of Oslo. International Conference on the European Energy Market
Academic article
Dinwoodie, Iain; Endrerud, Ole-Erik Vestøl; Hofmann, Matthias; Martin, Rebecca; Sperstad, Iver Bakken. (2015) Reference cases for verification of operation and maintenance simulation models for offshore wind farms. Wind Engineering : The International Journal of Wind Power
Academic article
Sperstad, Iver Bakken; Halvorsen-Weare, Elin Espeland; Hofmann, Matthias; Nonås, Lars Magne; Stålhane, Magnus; Wu, MingKang. (2014) A Comparison of Single- and Multi-parameter Wave Criteria for Accessing Wind Turbines in Strategic Maintenance and Logistics Models for Offshore Wind Farms. Energy Procedia
Academic article
Hofmann, Matthias; Sperstad, Iver Bakken. (2014) Will 10 MW wind turbines bring down the operation and maintenance cost of offshore wind farms?. Energy Procedia
Academic article
Netland, Øyvind; Sperstad, Iver Bakken; Hofmann, Matthias; Skavhaug, Amund. (2014) Cost-benefit Evaluation of Remote Inspection of Offshore Wind Farms by Simulating the Operation and Maintenance Phase. Energy Procedia
Academic article
Hofmann, Matthias; Sperstad, Iver Bakken. (2013) NOWIcob - A tool for reducing the maintenance costs of offshore wind farms. Energy Procedia
Academic article
Hagen, Brede Andre Larsen; Simonsen, Ingve; Hofmann, Matthias; Muskulus, Michael. (2013) A multivariate Markov weather model for O&M simulation of offshore wind parks. Energy Procedia
Academic article
Scheu, Matti Niclas; Matha, Denis; Hofmann, Matthias; Muskulus, Michael. (2012) Maintenance Strategies for Large Offshore Wind Farms. Energy Procedia
Academic article
Hofmann, Matthias. (2011) A Review of Decision Support Models for Offshore Wind Farms with an Emphasis on Operation and Maintenance Strategies. Wind Engineering : The International Journal of Wind Power
Academic article
Kjølle, Gerd Hovin; Hofmann, Matthias. (2011) Viktig europeisk referanse: Kostnader knyttet til avbrudd og spenningsforstyrrelser. Xergi
Popular scientific article

Part of book/report

Bjarghov, Sigurd Nikolai; Hofmann, Matthias. (2022) Grid Tariffs for Peak Demand Reduction: Is there a Price Signal Conflict with Electricity Spot Prices?. Institute of Electrical and Electronics Engineers (IEEE)
Academic chapter/article/Conference paper
Hofmann, Matthias; Lindberg, Karen Byskov. (2021) Do households react to variable power prices? – Results from a Norwegian pricing experiment . IEEE (Institute of Electrical and Electronics Engineers)
Academic chapter/article/Conference paper
Bjørgum, Astrid; Welte, Thomas Michael; Hofmann, Matthias. (2015) Life cycle cost analysis for corrosion protective coatings -offshore wind turbines. Whittles Publishing
Chapter
Hofmann, Matthias; Gjerde, Oddbjørn Idar; Kjølle, Gerd Hovin; Gramme, Eivind; Hernes, Johan G.; Foosnæs, Jan Andor. (2013) Developing indicators for monitoring vulnerability of power lines - case studies. CIRED - Congrès International des Réseaux Electriques de Distribution
Academic chapter/article/Conference paper
Hofmann, Matthias; Kjølle, Gerd Hovin; Gjerde, Oddbjørn Idar. (2012) Development of indicators to monitor vulnerabilities in power systems. Curran Associates, Inc.
Academic chapter/article/Conference paper
Kjølle, Gerd Hovin; Gjerde, Oddbjørn Idar; Hofmann, Matthias. (2012) Monitoring Vulnerability in Power Systems : extraordinary Events, Analysis Framework and Development of Indicators.
Academic chapter/article/Conference paper

Report

Wolfgang, Ove; Askeland, Magnus; Backe, Stian; Fagerstrøm, Jonathan; Crespo del Granado, Pedro; Hofmann, Matthias. (2019) Prosumers' role in the future energy system. NTNU/SINTEF
Report
Wolfgang, Ove; Askeland, Magnus; Backe, Stian; Fagerstrøm, Jonathan; Crespo del Granado, Pedro; Hofmann, Matthias. (2018) Prosumers’ role in the future energy system. FME CenSES
Report
Wolfgang, Ove; Askeland, Magnus; Backe, Stian; Fagerstrøm, Jonathan; Del Granado, Pedro Crespo; Hofmann, Matthias. (2018) Prosumers' role in the future energy system. Center for Sustainable Energy Studies (CenSES), NTNU
Report
Sperstad, Iver Bakken; Kolstad, Magne Lorentzen; Hofmann, Matthias. (2017) Technical documentation of version 3.3 of the NOWIcob tool. SINTEF Energi. Rapport (TR A7374)
Report
Sperstad, Iver Bakken; Kolstad, Magne Lorentzen; Hofmann, Matthias. (2017) User guide for Version 3.3 of the NOWIcob tool. SINTEF Energi. Rapport (TR A7372)
Report
Hofmann, Matthias; Kjølle, Gerd Hovin; Gjerde, Oddbjørn. (2013) Vulnerability indicators for electric power grids. SINTEF Energi. Rapport (TR A7276)
Report
Kjølle, Gerd Hovin; Gjerde, Oddbjørn; Hofmann, Matthias. (2013) Vulnerability and security in a changing power system. SINTEF Energi. Rapport (TR A7278)
Report
Hofmann, Matthias. (2012) Framework for evaluation of access technology and logistics support. SINTEF Energi. Rapport (TR A7275)
Report
Hofmann, Matthias; Kjølle, Gerd Hovin. (2012) Konsekvenser av avbrudd i elektrisitets-forsyningen til kritisk infrastrukturUtarbeidet for Energi Norge AS. SINTEF Energi. Rapport (TR A7197)
Report
Hofmann, Matthias; Kjølle, Gerd Hovin. (2012) Konsekvenser av avbrudd i elektrisitets-forsyningen til kritisk infrastruktur. Fornybar Norge (346-2012)
Report
Heggset, Jørn; Hofmann, Matthias. (2012) Operation and maintenance of offshore wind farms – trends and outlook. SINTEF Energi AS
Report
Hofmann, Matthias; Gjerde, Oddbjørn Idar; Kjølle, Gerd Hovin. (2011) Vulnerability in electric power gridsState of the art and framework for vulnerability indicators. SINTEF Energi. Rapport (TR A7120)
Report
Tveiten, Camilla Knudsen; Albrechtsen, Eirik; Heggset, Jørn; Hofmann, Matthias; Norddal, Per Kristian. (2011) HSE challenges related to offshore renewable energy. SINTEF Rapport
Report
Hofmann, Matthias; Gjerde, Oddbjørn Idar; Kjølle, Gerd Hovin. (2011) Vulnerability in electric power grids State of the art and framework for vulnerability indicators. Teknisk rapport (SINTEF Energiforskning) (TR A7120)
Report
Hofmann, Matthias. (2010) State of the art of models for offshore wind farms with an emphasis on O&M strategies. SINTEF Rapport (TR A7013)
Report
Hofmann, Matthias; Seljeseth, Helge; Kjølle, Gerd Hovin; Volden, Gro Holst. (2010) Study on Estimation of Costs due to Electricity Interruptions and Voltage Disturbances. Teknisk rapport (SINTEF Energiforskning) (TR A6978)
Report
Hofmann, Matthias. (2010) State of the art of models for offshore wind farms with an emphasis on O&M strategies (D5.1-5). Teknisk rapport (SINTEF Energiforskning) (TR A7013)
Report

Knowledge Transfer