Abstract
This paper presents different technical possibilities to
balance the short term production and consumption of
electricity in Finland. Based on several wind
measurements in Finland, the amount of wind power
variation was calculated for a scenario with 2000 MW wind
power in Finland. Additionally, an estimate of the
reserves needed for wind power and an analysis of the
regulating power market (balancing market) in Finland was
made. Hydro power and gas turbines can be regulated by at
least 40% of the maximum capacity in one minute.
Condensing power plants fuelled by coal (or peat) can be
regulated by 5% (or 3%) of their capacity in one minute.
The power regulation characteristics in combined heat and
power plants (CHP) vary from one plant to another.
Therefore no general figures can be given. However, CHP
can have possibility for high regulation capacity if heat
storage are provided. The one minute power regulation for
pressurized water nuclear reactors can be from 1 to 3% of
the capacity. Based on these figures and on the installed
Finnish electricity production capacity, there is
2100-2200 MW (hydro power and gas turbines) of power
reserve capacity in Finland. The maximum power variation
in wind power production from hour to hour has been 16%
and the corresponding standard deviation is 2.7% of the
installed capacity, from three years of measured power
production data in Finland. Based on these measurements a
scenario with 2000 MW wind power in Finland was made. In
this scenario the maximum hourly production variation
would be 20% and the standard deviation 3.4%. This study
also examines the changes in Finland's regulating power
market in aggregated regulation bids, volume of
regulating power and regulating power price. Both
regulation bids and volume of regulating power vary in
time. In recent years there have been an increased number
of peaks in the regulating power price. If the wind power
capacity (2000 MW) would be geographically distributed,
it would unlikely ha- ve an impact on the amount of the
disturbance reserves. The influence on the needs of the
frequency controlled normal operation reserve can not be
specified with the current (hourly) wind power
measurements in Finland. Also sufficient slow reserve
capacity and working order must be ensured when the wind
power production increases. Adding wind power to the
power system will clearly be seen in the regulating power
market. The current capacity available to the Finnish
regulating power market can be insufficient at times when
changes in the power production increase.
| Original language | English |
|---|---|
| Title of host publication | Integration of Wide-Scale Renewable Resources Into the Power Delivery System, 2009 CIGRE/IEEE PES Joint Symposium |
| Publisher | IEEE Institute of Electrical and Electronic Engineers |
| Number of pages | 10 |
| ISBN (Print) | 978-1-4244-4860-9 |
| Publication status | Published - 2009 |
| MoE publication type | B3 Non-refereed article in conference proceedings |
| Event | Integration of Wide-Scale Renewable Resources Into the Power Delivery System, 2009 CIGRE/IEEE PES Joint Symposium, Calgary, AB, Canada, 29-31 July 2009 - Duration: 1 Jan 2009 → … |
Conference
| Conference | Integration of Wide-Scale Renewable Resources Into the Power Delivery System, 2009 CIGRE/IEEE PES Joint Symposium, Calgary, AB, Canada, 29-31 July 2009 |
|---|---|
| Period | 1/01/09 → … |
Keywords
- reserve
- power regulation
- power variation
- wind power
- cogeneration
- power markets
- power measurement
- wind power plants
