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Demand Bidding at FINGRID, Finland

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... loads are contracted with a competitive bidding procedure on yearly bases ... day-specific forecasts of the reserve volumes for the following calendar day ... – PowerPoint PPT presentation

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Title: Demand Bidding at FINGRID, Finland


1
Demand Bidding at FINGRID, Finland
  • PLMA/IEA International Symposium on Demand
    Response
  • Southgate Towers Hotel, New York City
  • September 9-10, 2003
  • Fingrid Oyj
  • Power System Operation Planning
  • Jarno Sederlund
  • jarno.sederlund_at_fingrid.fi
  • www.fingrid.fi

2
FINGRID IN THE NORDIC ELECTRICITY MARKET-
Finnish System Operator in brief -
NORDEL GRID (A JOINT NORDIC GRID)
  • Started operations on 1 September 1997
  • Owns 99.5 per cent of the Finnish main grid and
    all the major interconnections
  • A total of 14,000 kilometres of transmission
    lines and 100 substations
  • Number of transmission customers 100
  • Number of personnel 210 (31.12.2002)
  • Turnover EUR 273 million
  • Profit for the financial year EUR 39 million
  • Balance sheet total EUR 1,379 million
  • Consumption in Finland in 2002 84 TWh
  • Peak load (winter 2002/2003) 13 920 MW

FINGRID OYJ TRANSMISSION GRID
3
RESERVES- Overview in Nordic countries -
4
DISTURBANCE MANAGEMENT- Maintaining of reserves -
  • Fingrid is responsible for the maintenance of
    reserves that are needed in the Finnish power
    system according to Nordic grid dimensiong rules
  • Power system has to withstand any single fault
    (N-1)
  • Maintaining of reserves is largely based on
    purchased services
  • Disconnectable loads are used as reserve in the
    event of disturbance situations in the same way
    as reserve capacity of power plants

5
DEMAND BIDDING AT FINGRID- Markets/Participants -
  • Fingrid has signed contracts with process
    industry's large customers on disconnectable
    loads
  • Metal industry (steel works and furnaces)
  • Forest industry (groundwood plants and mechanical
    pulping plants)
  • Chemical industry (electrolyses)
  • The unit size of disconnectable load varies
    between 15 - 60 MW
  • The needed amount of disconnectable loads are
    contracted with a competitive bidding procedure
    on yearly bases
  • Additional loads can be obtained from reserve
    owners on weekly basis

6
DISCONNECTABLE LOADS- Techincal and functional
terms -
  • Loads are disconnected from the grid by
  • frequency sensitive relays (instantaneous
    disturbance reserve)
  • manually within 15 minutes, when asked by Fingrid
    (fast disturbance reserve)
  • Loads can also be used as system protection
    scheme or in peak load situations to release
    production capacity
  • Fingrid has the right to obtain information from
    loads
  • day-specific forecasts of the reserve volumes for
    the following calendar day
  • real time status data and active power
    measurements of the resource to Fingrid's
    SCADA/EMS

7
DISCONNECTABLE LOADS- Contracts and costs -
  • Contractual terms are equal and agreement model
    voluntary to all participants
  • Payments are settled in accordance with
    participants offer
  • The following fees are paid for the reserve
    holders (in accordance with participants offer)
  • hourly fee for the time load has been connected
    to the grid (average fee EUR 0.3 per MWh)
  • energy compensation for disconnection (average
    fee EUR 350 per MWh)
  • The total volume of contract loads is
    approximately 400 MW
  • Contracts are made with 6 industrial enterprices
  • Fingrid's annual costs are approximately MEUR 1.8

8
DISCONNECTABLE LOADS- Experiences and future
plans -
  • Activation of loads in year 2002
  • as instantaneous disturbance reserve 3 times
    (frequency under 49.6 Hz)
  • Participants have chosen loads so that
    disconnection does not interrupt significantly
    normal operation
  • Future plans
  • explore futher possibilities to utilize loads
    e.g. in counter trades
  • increase the number of potential loads and
    participants (now 6 companies and 18 pcs loads)

9
DISCONNECTABLE LOADS- Summary -
  • Fingrid can utilize disconnectable loads as
  • instantaneous reserve in frequency disturbances
  • same way as gasturbines in disturbances
  • system protection scheme in certain problem areas
  • in peak load situations

10
  • Further information
  • www.fingrid.com
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