Seppo Kärkkäinen - Academia.edu (original) (raw)
Related Authors
Don Mariano Marcos Memorial State University Mid La Union Campus
Uploads
Papers by Seppo Kärkkäinen
IFAC Proceedings Volumes, Oct 1, 1989
Due to the diversified rate structure, many of the small-and medium-scale industrial consumers ha... more Due to the diversified rate structure, many of the small-and medium-scale industrial consumers have a natural incentive for different Demand-Side-Hanagement (DSH) measures in Finland. The field research work, which lasted for over two years and was aimed to study these options in practice, revealed that each customer forms a unique case for which individual solutions must be found in order to level the electric load and to reduce energy costs. Peak clipping by solely controlling customers' own loads seldom yields substantial benefits. In some cases the modification of customers' own power-generating engines for peak clipping, which initially have been purchased for other purposes, such as emergency or stand-by aggregates, can come into question. However, many practical details restrict the applicability of these solutions. Investments for sophisticated, computer-based load control devices are justified in cases where other monitoring-and management functions besides DSH can be implemented in the system. In the future a closer cooperation between the customer and the distributing utility can enhance the benefits of the current DSH options.
ABSTRACT Report n:o TKK-F-A612. Nord. semin. beräkningsmodeller av solvärmesystem med säsongslagr... more ABSTRACT Report n:o TKK-F-A612. Nord. semin. beräkningsmodeller av solvärmesystem med säsongslagring - NBS-semin. Helsingfors, 12 - 13 juni 1987
The society is utilising more and more information and communication technologies and it is becom... more The society is utilising more and more information and communication technologies and it is becoming more dependent on reliable energy resources. There will also be more distributed energy resources that are connected to the electrical network. The coordinated management and automation of such resources becomes more important and includes new challenges and possibilities. Distribution requires new ways of working and management of processes producing integrated added value. In the area of distributed energy there can be seen three commercial levels: services supporting the business and business networks, management and utilisation of local energy resources and control of individual production and consumption units. Information and communication technologies and automation are essential in gaining the aims and in developing the means and tools for controlling this kind of systems (production, transfer, distribution, storage, use).
Time of use tariffs are already applied in large scale In Finland, but the electricity market pri... more Time of use tariffs are already applied in large scale In Finland, but the electricity market prices do not any more follow such regular time pattern. Fast demand response is increasingly needed. Main results and experience from a recent price control project in Finland are explained here where spot-price based contracts were applied to about 10 residential customers with electric heating and hourly meters. Consumption and temperature measurements were installed and the heat dynamics modelled. Manual responses were observed and automatic methods for price response developed.
Proceedings. International Conference on Power System Technology
Losses in lines and components represent a considerable cost component for electricity distributi... more Losses in lines and components represent a considerable cost component for electricity distribution companies. A model, named as the loss coefficient mode, for estimating hourly and annual losses and their value has been developed. That requires only a minimal amount of data from the company. The losses of six different urban and rural Finnish electricity distribution companies have been estimated
CIRED Seminar 2008: SmartGrids for Distribution, 2008
IET Conference Publications, 2009
Sähkön pienkuluttajien etäluettavan mittaroinnin tila ja luomat mahdollisuudet Asiakkaan nimi, yh... more Sähkön pienkuluttajien etäluettavan mittaroinnin tila ja luomat mahdollisuudet Asiakkaan nimi, yhteyshenkilö ja yhteystiedot Asiakkaan viite Kauppa-ja teollisuusministeriö Timo Ritonummi
IFAC Proceedings Volumes, Oct 1, 1989
Due to the diversified rate structure, many of the small-and medium-scale industrial consumers ha... more Due to the diversified rate structure, many of the small-and medium-scale industrial consumers have a natural incentive for different Demand-Side-Hanagement (DSH) measures in Finland. The field research work, which lasted for over two years and was aimed to study these options in practice, revealed that each customer forms a unique case for which individual solutions must be found in order to level the electric load and to reduce energy costs. Peak clipping by solely controlling customers' own loads seldom yields substantial benefits. In some cases the modification of customers' own power-generating engines for peak clipping, which initially have been purchased for other purposes, such as emergency or stand-by aggregates, can come into question. However, many practical details restrict the applicability of these solutions. Investments for sophisticated, computer-based load control devices are justified in cases where other monitoring-and management functions besides DSH can be implemented in the system. In the future a closer cooperation between the customer and the distributing utility can enhance the benefits of the current DSH options.
ABSTRACT Report n:o TKK-F-A612. Nord. semin. beräkningsmodeller av solvärmesystem med säsongslagr... more ABSTRACT Report n:o TKK-F-A612. Nord. semin. beräkningsmodeller av solvärmesystem med säsongslagring - NBS-semin. Helsingfors, 12 - 13 juni 1987
The society is utilising more and more information and communication technologies and it is becom... more The society is utilising more and more information and communication technologies and it is becoming more dependent on reliable energy resources. There will also be more distributed energy resources that are connected to the electrical network. The coordinated management and automation of such resources becomes more important and includes new challenges and possibilities. Distribution requires new ways of working and management of processes producing integrated added value. In the area of distributed energy there can be seen three commercial levels: services supporting the business and business networks, management and utilisation of local energy resources and control of individual production and consumption units. Information and communication technologies and automation are essential in gaining the aims and in developing the means and tools for controlling this kind of systems (production, transfer, distribution, storage, use).
Time of use tariffs are already applied in large scale In Finland, but the electricity market pri... more Time of use tariffs are already applied in large scale In Finland, but the electricity market prices do not any more follow such regular time pattern. Fast demand response is increasingly needed. Main results and experience from a recent price control project in Finland are explained here where spot-price based contracts were applied to about 10 residential customers with electric heating and hourly meters. Consumption and temperature measurements were installed and the heat dynamics modelled. Manual responses were observed and automatic methods for price response developed.
Proceedings. International Conference on Power System Technology
Losses in lines and components represent a considerable cost component for electricity distributi... more Losses in lines and components represent a considerable cost component for electricity distribution companies. A model, named as the loss coefficient mode, for estimating hourly and annual losses and their value has been developed. That requires only a minimal amount of data from the company. The losses of six different urban and rural Finnish electricity distribution companies have been estimated
CIRED Seminar 2008: SmartGrids for Distribution, 2008
IET Conference Publications, 2009
Sähkön pienkuluttajien etäluettavan mittaroinnin tila ja luomat mahdollisuudet Asiakkaan nimi, yh... more Sähkön pienkuluttajien etäluettavan mittaroinnin tila ja luomat mahdollisuudet Asiakkaan nimi, yhteyshenkilö ja yhteystiedot Asiakkaan viite Kauppa-ja teollisuusministeriö Timo Ritonummi