I an working at Ea Energy Analyses - with energi planning and energy markets. Has recently been active in Denmark, Mexico, Vietnam and Ethiopia. See more at www.eaea.dk
... This could prove costly if for example the alternative is district heating based on combined ... more ... This could prove costly if for example the alternative is district heating based on combined heat and power production or surplus heat. At present 63 pct. of all new Danish houses are supplied with district heating (Aggerholm, 2008, Togeby et. al, 2008) ...
På baggrund af en række forudsætninger vises det, at de danske vejbestyrelser i gennemsnit betale... more På baggrund af en række forudsætninger vises det, at de danske vejbestyrelser i gennemsnit betaler 71% af de omkostninger, der er knyttet til trafikuheld med personskader, som sker på deres veje. For kommunerne er andelen kun 55%. Dette betegnes i denne artikel som manglende incitamenter for forebyggelse af trafikuheld. I incitamentet medtages borgernes velfærdstab i forbindelse med trafikuheld. Der gennemregnes to policy-forslag, som forbedrer forholdene, så incitamentet øges til henholdsvis 81 og 90%. Det er fundet, at antallet af alvorlige personskader på kommunevej kan forklares med en række parametre, bl.a. om kommunen er velstående. Der er ikke fundet en klar sammenhæng mellem antal personskader og incitamentet, som vi har beregnet den. En fjernelse af de skæve incitamenter skønnes imidlertid, at kunne reducere de alvorlige personskader med knap 8 - 10%. Artiklen demonstrerer en økonomisk metode til at vurdere den nuværende organisering af vejsektoren. Der er tale om en partie...
In this paper we present an analysis of the effects of CO2 taxation and energy agreements on elec... more In this paper we present an analysis of the effects of CO2 taxation and energy agreements on electricity and total energy use in Danish industrial companies. An econometric panel data analysis of industrial demand for electricity and energy is presented. In the panel energy consumption, production and value added are observed at company level. We estimate price and production elasticities for electricity and total energy (i.e. measuring the X per cent change in demand of say electricity of a one per cent increase in the price of electricity). The estimated price and production elasticities are allowed to vary according to company characteristics such as industrial sub-sector, company size, energy intensity and type of ownership. Most previous econometric studies on industrial energy demand use aggregate data, while a couple of micro level studies mainly employ cross-section analysis. To our knowledge this is only the second econometric study on industrial energy demand based on a la...
(max. 2000 char.): Due to characteristics of the power system, costs of producing electricity var... more (max. 2000 char.): Due to characteristics of the power system, costs of producing electricity vary considerably over short time intervals. Yet, many consumers do not experience corresponding variations in the price they pay for consuming electricity. The topic of this report is: are consumers willing and able to respond to short-term variations in electricity prices, and if so, what is the social benefit of consumers doing so? Taking Denmark and the Nord Pool market as a case, the report focuses on what is known as short-term consumer flexibility or demand response in the electricity market. With focus on market efficiency, efficient allocation of resources and security of supply, the report describes demand response from a microeconomic perspective and provides empirical observations and case studies. The report aims at evaluating benefits from demand response. However, only elements contributing to an overall value are presented. In addition, the analyses are limited to benefits f...
... Mikkelsen Camilla K. Damgaard Tina Sommer Thue Hillgaard Petersen Anders Larsen Hans Nilsson ... more ... Mikkelsen Camilla K. Damgaard Tina Sommer Thue Hillgaard Petersen Anders Larsen Hans Nilsson Edward James-Smidth Camilla Hay Peter ... Universitet, Lars J Nilsson, Afdelingen for Miljø- og Energisystemer, Lunds Universitet, Olaf Rieper, AKF, samt Peter Bach og Renato ...
This paper analyzes the effect of supplying online feedback by SMS-text messages and email about ... more This paper analyzes the effect of supplying online feedback by SMS-text messages and email about electricity consumption on the level of total household electricity consumption. An experiment was conducted where 1,452 households were randomly allocated to three experimental groups and two control groups. Feedback was supplied throughout 2007 to members of the experiment groups who accepted the invitation, and data on consumption of electricity for 2006 and 2007 collected for all participants and control group members. 30% of the households invited to receive feedback accepted the invitation. The estimated effects of the feedback on consumption of electricity are estimated to be in the range of 2-3%. The feedback technology is cheap to implement and therefore likely to be cost-effective
This paper discusses the need to develop a dynamic energy system and focuses on low cost options ... more This paper discusses the need to develop a dynamic energy system and focuses on low cost options like development of market design and traditional technologies like electric boilers, heat pumps, and turbine by-pass. It is concluded that there is large potential in these areas - enough to balance the expected expansion of wind power for the next ten years. I. INTRODUCTION The integration of large scale wind power in the energy system is a huge challenge - not only for the electrical transmission and distribution system, but for the whole energy system. The variable production from wind power combined with limited predictability in the time scale of the day-ahead market makes it relevant to study if new dynamic responses to variable power production can be introduced in all parts of the energy system. This paper describes different relevant technologies in the heat and power system that can increase the dynamic behaviour of the systems. Potential developments of relevant market system...
This paper utilises data provided by the Cape Town Electricity Department to make a simple statis... more This paper utilises data provided by the Cape Town Electricity Department to make a simple statistical analysis of the tariff system and consumption and purchasing patterns in the Cape Town distribution area. The statistical analysis is used to provide suggestions for amendments to the tariff and retail system that may help alleviate energy poverty in low income households and promote energy efficiency. 1.
Improved energy efficiency is a valuable means for the European Union (EU) to improve security of... more Improved energy efficiency is a valuable means for the European Union (EU) to improve security of supply and reduce greenhouse gas emissions in a cost-effective way thus mitigating climate change. Further, a more energy efficient economy would boost innovative technological solutions, increase competitiveness of the industry and create high quality jobs.
... Mikael Togeby (red.) Jesper Werling János Hethey Lars Bregnbæk Anders Kofoed-Wiuff Hans Henri... more ... Mikael Togeby (red.) Jesper Werling János Hethey Lars Bregnbæk Anders Kofoed-Wiuff Hans Henrik Lindboe Kim Mygind Jonas Ahmt ... Endvidere opsatte regerin-gens energioplæg ”En visionær dansk energipolitik” fra 2007 det mål, at ande-len af vedvarende energi skal ...
... of Denmark, Department of Electrical Engineering,. Email: ---. Author: Nyeng, Preben (Cwisno:... more ... of Denmark, Department of Electrical Engineering,. Email: ---. Author: Nyeng, Preben (Cwisno: 35656). ... Author: Sørensen, P. Technical University of Denmark, Risø National Laboratory for ... Rather, power system architectures may be implemented by alternative technologies and ...
Handbog i evaluering af energispareaktiviteter: Udarbejdet for Energistyrelsen, ELFOR, Elsparefon... more Handbog i evaluering af energispareaktiviteter: Udarbejdet for Energistyrelsen, ELFOR, Elsparefonden, Naturgasselskaberne og Fjernvarmeselskaberne
45th International Universities Power Engineering Conference UPEC2010, 2010
A power system's AC frequency is a system-wide indicator of the immediate power balance in th... more A power system's AC frequency is a system-wide indicator of the immediate power balance in the system. This is used by selected generators to adjust the generation to level out imbalances continuously, as well as in the case of disturbances in the system. However, previous theoretical and empirical studies indicate that this service might as well be provided by demand-side control.
Most companies can survive on the market without carrying out specific energy efficiency activiti... more Most companies can survive on the market without carrying out specific energy efficiency activities. Nevertheless, some companies work systematically and continuously with these issues. The primary research questions are: What makes some companies focus on energy efficiency and why are they successful? The study focuses on the human and organizational dimensions of change in small and medium-sized companies. The object is to identify cultural and institutional factors, embedded in the internal organization or in the external network, which have motivated the company actors to pursue processes of change which have led to concrete implementation of energy efficiency measures. On the basis of 33 interviews a detailed understanding of the implementation process of energy efficiency in nine companies has been reconstructed. This paper presents some preliminary results of the analysis which will show different paths and types of success. The way energy-efficiency issues are perceived and ...
... This could prove costly if for example the alternative is district heating based on combined ... more ... This could prove costly if for example the alternative is district heating based on combined heat and power production or surplus heat. At present 63 pct. of all new Danish houses are supplied with district heating (Aggerholm, 2008, Togeby et. al, 2008) ...
På baggrund af en række forudsætninger vises det, at de danske vejbestyrelser i gennemsnit betale... more På baggrund af en række forudsætninger vises det, at de danske vejbestyrelser i gennemsnit betaler 71% af de omkostninger, der er knyttet til trafikuheld med personskader, som sker på deres veje. For kommunerne er andelen kun 55%. Dette betegnes i denne artikel som manglende incitamenter for forebyggelse af trafikuheld. I incitamentet medtages borgernes velfærdstab i forbindelse med trafikuheld. Der gennemregnes to policy-forslag, som forbedrer forholdene, så incitamentet øges til henholdsvis 81 og 90%. Det er fundet, at antallet af alvorlige personskader på kommunevej kan forklares med en række parametre, bl.a. om kommunen er velstående. Der er ikke fundet en klar sammenhæng mellem antal personskader og incitamentet, som vi har beregnet den. En fjernelse af de skæve incitamenter skønnes imidlertid, at kunne reducere de alvorlige personskader med knap 8 - 10%. Artiklen demonstrerer en økonomisk metode til at vurdere den nuværende organisering af vejsektoren. Der er tale om en partie...
In this paper we present an analysis of the effects of CO2 taxation and energy agreements on elec... more In this paper we present an analysis of the effects of CO2 taxation and energy agreements on electricity and total energy use in Danish industrial companies. An econometric panel data analysis of industrial demand for electricity and energy is presented. In the panel energy consumption, production and value added are observed at company level. We estimate price and production elasticities for electricity and total energy (i.e. measuring the X per cent change in demand of say electricity of a one per cent increase in the price of electricity). The estimated price and production elasticities are allowed to vary according to company characteristics such as industrial sub-sector, company size, energy intensity and type of ownership. Most previous econometric studies on industrial energy demand use aggregate data, while a couple of micro level studies mainly employ cross-section analysis. To our knowledge this is only the second econometric study on industrial energy demand based on a la...
(max. 2000 char.): Due to characteristics of the power system, costs of producing electricity var... more (max. 2000 char.): Due to characteristics of the power system, costs of producing electricity vary considerably over short time intervals. Yet, many consumers do not experience corresponding variations in the price they pay for consuming electricity. The topic of this report is: are consumers willing and able to respond to short-term variations in electricity prices, and if so, what is the social benefit of consumers doing so? Taking Denmark and the Nord Pool market as a case, the report focuses on what is known as short-term consumer flexibility or demand response in the electricity market. With focus on market efficiency, efficient allocation of resources and security of supply, the report describes demand response from a microeconomic perspective and provides empirical observations and case studies. The report aims at evaluating benefits from demand response. However, only elements contributing to an overall value are presented. In addition, the analyses are limited to benefits f...
... Mikkelsen Camilla K. Damgaard Tina Sommer Thue Hillgaard Petersen Anders Larsen Hans Nilsson ... more ... Mikkelsen Camilla K. Damgaard Tina Sommer Thue Hillgaard Petersen Anders Larsen Hans Nilsson Edward James-Smidth Camilla Hay Peter ... Universitet, Lars J Nilsson, Afdelingen for Miljø- og Energisystemer, Lunds Universitet, Olaf Rieper, AKF, samt Peter Bach og Renato ...
This paper analyzes the effect of supplying online feedback by SMS-text messages and email about ... more This paper analyzes the effect of supplying online feedback by SMS-text messages and email about electricity consumption on the level of total household electricity consumption. An experiment was conducted where 1,452 households were randomly allocated to three experimental groups and two control groups. Feedback was supplied throughout 2007 to members of the experiment groups who accepted the invitation, and data on consumption of electricity for 2006 and 2007 collected for all participants and control group members. 30% of the households invited to receive feedback accepted the invitation. The estimated effects of the feedback on consumption of electricity are estimated to be in the range of 2-3%. The feedback technology is cheap to implement and therefore likely to be cost-effective
This paper discusses the need to develop a dynamic energy system and focuses on low cost options ... more This paper discusses the need to develop a dynamic energy system and focuses on low cost options like development of market design and traditional technologies like electric boilers, heat pumps, and turbine by-pass. It is concluded that there is large potential in these areas - enough to balance the expected expansion of wind power for the next ten years. I. INTRODUCTION The integration of large scale wind power in the energy system is a huge challenge - not only for the electrical transmission and distribution system, but for the whole energy system. The variable production from wind power combined with limited predictability in the time scale of the day-ahead market makes it relevant to study if new dynamic responses to variable power production can be introduced in all parts of the energy system. This paper describes different relevant technologies in the heat and power system that can increase the dynamic behaviour of the systems. Potential developments of relevant market system...
This paper utilises data provided by the Cape Town Electricity Department to make a simple statis... more This paper utilises data provided by the Cape Town Electricity Department to make a simple statistical analysis of the tariff system and consumption and purchasing patterns in the Cape Town distribution area. The statistical analysis is used to provide suggestions for amendments to the tariff and retail system that may help alleviate energy poverty in low income households and promote energy efficiency. 1.
Improved energy efficiency is a valuable means for the European Union (EU) to improve security of... more Improved energy efficiency is a valuable means for the European Union (EU) to improve security of supply and reduce greenhouse gas emissions in a cost-effective way thus mitigating climate change. Further, a more energy efficient economy would boost innovative technological solutions, increase competitiveness of the industry and create high quality jobs.
... Mikael Togeby (red.) Jesper Werling János Hethey Lars Bregnbæk Anders Kofoed-Wiuff Hans Henri... more ... Mikael Togeby (red.) Jesper Werling János Hethey Lars Bregnbæk Anders Kofoed-Wiuff Hans Henrik Lindboe Kim Mygind Jonas Ahmt ... Endvidere opsatte regerin-gens energioplæg ”En visionær dansk energipolitik” fra 2007 det mål, at ande-len af vedvarende energi skal ...
... of Denmark, Department of Electrical Engineering,. Email: ---. Author: Nyeng, Preben (Cwisno:... more ... of Denmark, Department of Electrical Engineering,. Email: ---. Author: Nyeng, Preben (Cwisno: 35656). ... Author: Sørensen, P. Technical University of Denmark, Risø National Laboratory for ... Rather, power system architectures may be implemented by alternative technologies and ...
Handbog i evaluering af energispareaktiviteter: Udarbejdet for Energistyrelsen, ELFOR, Elsparefon... more Handbog i evaluering af energispareaktiviteter: Udarbejdet for Energistyrelsen, ELFOR, Elsparefonden, Naturgasselskaberne og Fjernvarmeselskaberne
45th International Universities Power Engineering Conference UPEC2010, 2010
A power system's AC frequency is a system-wide indicator of the immediate power balance in th... more A power system's AC frequency is a system-wide indicator of the immediate power balance in the system. This is used by selected generators to adjust the generation to level out imbalances continuously, as well as in the case of disturbances in the system. However, previous theoretical and empirical studies indicate that this service might as well be provided by demand-side control.
Most companies can survive on the market without carrying out specific energy efficiency activiti... more Most companies can survive on the market without carrying out specific energy efficiency activities. Nevertheless, some companies work systematically and continuously with these issues. The primary research questions are: What makes some companies focus on energy efficiency and why are they successful? The study focuses on the human and organizational dimensions of change in small and medium-sized companies. The object is to identify cultural and institutional factors, embedded in the internal organization or in the external network, which have motivated the company actors to pursue processes of change which have led to concrete implementation of energy efficiency measures. On the basis of 33 interviews a detailed understanding of the implementation process of energy efficiency in nine companies has been reconstructed. This paper presents some preliminary results of the analysis which will show different paths and types of success. The way energy-efficiency issues are perceived and ...
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