utility resilience...emergency situation - southeast europe floods the heaviest rain in 120 years of...
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Copyright 2017 EKC © This material may not be copied or distributed in all or in part without prior wirtten permission of the copyright owner.
UTILITY RESILIENCEEmergency situations and lessons learned in SEE region
WEBINARJune, 2020
Elektroenergetski Koordinacioni Centar d.o.o.Electricity Coordinating Center Ltd.V. Stepe 412, 11040 Belgrade 33, Serbiawww.ekc-ltd.com
Copyright 2017 EKC © This material may not be copied or distributed in all or in part without prior wirtten permission of the copyright owner.
EKC was founded in 1993 by Electric Power Enterprises of Serbia, FYRMacedonia, Montenegro and Power Utility of RS in B&H
Primary activity was to coordinate and control the electric powersystems in South Eastern Europe
EKC today - engineering consultancy firm that provides a full range ofincorporated strategic business, technical and software services in thearea of electric power systems, transmission and distribution as well asgeneration development and electricity market
About EKC
Copyright 2017 EKC © This material may not be copied or distributed in all or in part without prior wirtten permission of the copyright owner.
Power sector in Serbia
26%
13%5%
53%
3%
Installed capacities
Hydro RoR
Hydro Res
Wind
Thermal
CHP
Total capacity is 7665 MW
Copyright 2017 EKC © This material may not be copied or distributed in all or in part without prior wirtten permission of the copyright owner.
Emergency situation - Southeast Europe floods
The heaviest rain in 120 years ofrecorded weather measurements
Damage in Serbia stands at1.55 billion euros
During the flooding period, anestimated 300,000 households wereleft without electric power
Flood waters filled the largest coalfield of RB Kolubara with 210 millioncubic meters of water
The mining equipment was damaged(coal railway)
The water penetrated into major 400kV substation in vicinity of thermalpower plan Nikola Tesla A and B
Copyright 2017 EKC © This material may not be copied or distributed in all or in part without prior wirtten permission of the copyright owner.
Emergency situation - Southeast Europe floods
Over 1000 MW of thermalcapacities were unavailable+ 1500 MW in the regularannual maintenance period
Major hydro facility openedthe gates in order to lowerthe level of the river Danube– additional 500 MW waslost
The lack of power iscovered from theneighboring systems
No load shedding in non-flooded areas
Copyright 2017 EKC © This material may not be copied or distributed in all or in part without prior wirtten permission of the copyright owner.
Emergency situation - Southeast Europe floods
DEFENSIVE MEASURES
Preventive disconnection of distribution substations
Voltage reductions in distribution network
Emergency import of electricity
Crisis headquarters 24/7 – the most experienced dispatchers were engaged forshift work
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Emergency situation – Extreme winter in 2012
Extreme weather conditions duringwinter in 2012 (up to -30 degreeCelsius with strong wind)
After 30 years, ice showed up onSava river, suction pumps wereclogged
Coal mining reduced to less than70% of planned amount
The record of daily consumption inSerbia – 163 millions KWh
Coal railway collapsed (coal landfillsare used)
Cross-border capacities in the regionare used only for national purposes
Copyright 2017 EKC © This material may not be copied or distributed in all or in part without prior wirtten permission of the copyright owner.
Lessons learned
Detailed system defense plan needs to be prepared inadvance
Non-centralized production portfolio More investments
in distributed generation
Increasing capacities of coal landfills
Continuous training of dispatchers for emergencysituations
Investment in demand response
Short and Medium Term Adequacy Forecasts