WPP GENERATION VARIATIONS: EXPECTATIONS AND …
Transcript of WPP GENERATION VARIATIONS: EXPECTATIONS AND …
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Dr.sc. Goran Majstrovi ć
WPP GENERATION VARIATIONS: EXPECTATIONS AND ACHEIVEMENTS
Dr.sc. Goran Majstrovi ć
ENERGY INSTITUTEHrvoje Požar
MIPROOpatija 21.5.2012.
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OBJECTIVES
• Bulgarian experience
• Romanian experience
• Croatian experience
• Simulation of BiH system
• Future expectations in the region
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Existing WPP capacities in the region
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BULGARIAN EXPERIENCEBULGARIAN EXPERIENCE
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BULGARIAN EXPERIENCE
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BULGARIAN EXPERIENCE
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• Currently installed WPP capacity: ~500 MW
• Secondary reserve expected to be ~25 % of the WPP installed capacity
BULGARIAN EXPERIENCE
capacity
• But all WPPs are concentrated in the Eastern part of the country and that's the reserve should be kept at 50% of WPP installed capacity
• Currently they have enough reserve for 100% of the time
• Internal study: max. installed WPP capacity set to 1800 MW due to available secondary reserve (up to 900 MW)
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ROMANIAN EXPERIENCEROMANIAN EXPERIENCE
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ROMANIAN EXPERIENCE
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ROMANIAN EXPERIENCE
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• Currently installed WPP capacity: ~1200 MW
• Tertiary reserve (automatic) expected to be ~30 % of the WPP installed capacity
ROMANIAN EXPERIENCE
installed capacity
• Before wind: tertiary reserve = NPP + 100 MW (900 M W), didnt use for load variations - under 100 MW
• Currently they have enough reserve for 100% of the time
• Internal study: max. installed WPP capacity set to 3000 MW due to available tertiary reserve (900 MW)
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August 2010 – August 2011: 10-min variations: - 180/+214 MW and extreme of 866 MW
(PWPPinst = 563 – 930 MW)
ROMANIAN EXPERIENCE
(PWPPinst = 563 – 930 MW)
Variations more than dif >50 dif >100 dif>150 dif>200
No. of variations 128 22 3 0
% 0.247 0.042 0.006 0.000
Variations less than dif<-50 dif<-100 dif<-150 dif<-200
No. of variations 136 18 5 1
% 0.262 0.035 0.010 0.002
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EUROPEAN EXPERIENCE
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WPP VARIATIONS IN EUROPE
Source: Energinet, Eirgrid, ISET, Holmgren, Axelsson et al., INETI, EWEA
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CROATIAN EXPERIENCE
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CROATIAN EXPERIENCE
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CROATIAN EXPERIENCE
Država Proizvodnja(HE+VE)/
Potrošnja
(%)
Rezerva/Pmax
(%)
Pinst(VE)/rezerva
(%)
Švicarska 58,4 76,8 0,2Švicarska 58,4 76,8 0,2Austrija 56,9 109,9 9,9BiH 39,7 115,6 0,0Crna Gora 32,6 43,6 0,0Rumunjska 30,4 112,3 0,1HRVATSKA 29,6 37,2 1,8Slovenija 27,6 70,4 0,0Srbija 25,6 29,0 0,0Portugal 24,5 68,8 47,0Španjolska 20,7 108,6 36,2Danska 19,4 102,5 49,5Njemačka 11,5 73,9 41,8Ukupno ENTSO-E 15,7 74,2 20,7
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Raspon sekundarne P/f regulacije Elektrana po agregatu (MW) po elektrani (MW)
HE Zakučac 40 MW 160 MW HE Senj 37 MW 111 MW HE Vinodol 30 MW 90 MW UKUPNO 361 MW
CROATIAN EXPERIENCE
MWbbPaR 802max ≈−+=
Raspon sekundarne P/f regulacije Elektrana
Zima Ljeto po agregatu
(MW) po elektrani
(MW) po agregatu
(MW) po elektrani
(MW) HE Zakučac 40 MW 160 MW 40 MW 80 MW HE Senj - - 37 MW 111 MW HE Vinodol 30 MW 90 MW 30 MW 90 MW UKUPNO 150 MW 281 MW
Raspon sekundarne P/f regulacije Elektrana Zima Ljeto
Dan Noć Dan Noć HE Zakučac 160 MW - 80 MW - HE Senj - - 37 MW - HE Vinodol 90 MW 90 MW 90 MW 90 MW UKUPNO 150 MW dan / 90 MW no ć 207 MW dan / 90 MW no ć
Prema trenutnoj dispe čerskoj praksi mogu će je osigurati u EES izme đu 90 MW i 280 MW snage sekundarne regulacije.
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CROATIAN EXPERIENCE
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CROATIAN EXPERIENCE
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60
70
80 P(ve instal)
WPP GENERATION JAN -APR 2011
0
10
20
30
40
50
60
siječanj veljača ožujak travanj
2011.
Pve
(M
W) max (MW)
prosjek (MW)
max satna promjena (MW)
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WPP HOURLY VARIATIONS
1200
1400
1600
1800B
roj
satn
ih i
nte
rva
la
0
200
400
600
800
1000
1200
<-20 [-20,-10> [-10,-1> [-1,1> [1,10> [10,20> [20,30> >30
ΔP(MW)
Bro
j sa
tnih
in
terv
ala
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WIND MEASUREMENT ANALYSIS
Real wind measurements on 9 WPP sites (~50 m, scale d up to 80 m)measurement duration: 17 months, ~70,000 input data
Test 1 – each of 9 measuring site = equal capacity ( MW)Test 2 - each of 7 measuring site = equal capacity ( MW)
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WIND MEASUREMENT ANALYSIS
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WPP SCENARIO ANALYSIS
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EXPECTED WPP VARIATIONS
WPP generation variations: 10-minutes (red) and hourly (green)
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Scenarij (MW) 400 600 800a 800b 1000a 1000b 1200a 1200b 1200c
Maksimalna satna promjena proizvodnje VE (p.u.)
+ ∆P (porast) 0.40 0.41 0.40 0.41 0.38 0.38 0.37 0.33 0.29
EXPECTED WPP VARIATIONS
- ∆P (pad) -0.36 -0.37 -0.36 -0.35 -0.35 -0.33 -0.33 -0.35 -0.30
St.dev. 0.05 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.03
Scenarij Pojedinačne VE 910 MW 400 MW
Maksimalne 10-minutne promjene proizvodnje VE (p.u.)
∆P 92% 27% 38%
St. Dev 8% 3% 3,2%
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910 MW 400 MW
Broj 10-minutnih intervala s varijacijama preko ±15% ukupne instalirane snage
30 183
Broj analiziranih intervala 31487 54233
EXPECTED WPP VARIATIONS
Broj analiziranih intervala 31487 54233
Procijenjeni godišnji broj 10-minutnih intervala s varijacijama preko ±15%
50 177
Procijenjeni godišnje trajanje 10-minutnih intervala s varijacijama preko ±15%
8h 30h
Scenarij 400 600 800a 800b 1000a 1000b 1200a 1200b 1200c
Broj sati godišnje s varijacijama preko ±30% 20 11 9 7 8 8 8 6 3
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200-300 MW11%
300-400 MW3%
400 MW>0%
200-400 MW17%
400-600 MW2%
600-800 MW1% >1000 MW
0%
800-1000 MW0%
EXPECTED LOAD AND WPP VARIATIONS
Expected hourly load changes
0-100 MW63%
100-200 MW23%
0-200 MW80%
Expected load + WPP variations
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REGIONAL EXPERIENCE
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CURRENT EXPERIENCE WITH WPP VARIABILITY IN THE REGION
500
600
700
WP
P g
en
era
tio
n (
MW
)
0
100
200
300
400
500
1. 1. 1
1
8. 1. 1
1
15 .1. 1
1
22 .1. 1
1
29 .1. 1
1
5. 2. 1
1
12 .2. 1
1
19 .2. 1
1
26 .2. 1
1
5. 3. 1
1
12 .3. 1
1
19 .3. 1
1
26 .3. 1
1
2. 4. 1
1
9. 4. 1
1
16 .4. 1
1
23 .4. 1
1
WP
P g
en
era
tio
n (
MW
)
croatia
bulgaria
romania
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WPP VARIATIONS IN 2011
200
300
400
WP
P h
ou
rly
va
ria
tio
ns
(MW
h/h
)
max
min
99%
-400
-300
-200
-100
0
100
Romania Bulgaria Croatia Total sum
WP
P h
ou
rly
va
ria
tio
ns
(MW
h/h
)
99%
-99%
98%
-98%
90%
-90%
50%
-50%
P (WPP total) = 883 MW (2011)
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WPP VARIATIONS IN 2011
P (WPP total) = 883 MW (2011)
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WPP VARIATIONS IN 2011
40%
45%
50%
Max
imum
hou
rly v
aria
tions
as
a pe
rcen
tage
of t
otal
in
stal
led
WP
P c
apac
ity
0%
5%
10%
15%
20%
25%
30%
35%
Croatia Bulgaria Romania Greece TOTAL
Max
imum
hou
rly v
aria
tions
as
a pe
rcen
tage
of t
otal
in
stal
led
WP
P c
apac
ity
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WPP VARIATIONS IN 2011
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SIMULATION OF BIH SYSTEM
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EXISTING UNWANTED HOURLY SYSTEM IMBALANCE
200
250
300
350
400
-300
-250
-200
-150
-100
-50
0
50
100
150
1
158
315
472
629
786
943
1100
1257
1414
1571
1728
1885
2042
2199
2356
2513
2670
2827
2984
3141
3298
3455
3612
3769
3926
4083
4240
4397
4554
4711
4868
5025
5182
5339
5496
5653
5810
5967
6124
6281
6438
6595
6752
6909
7066
7223
7380
7537
7694
7851
8008
8165
8322
8479
8636
hours
ΔP
(BiH
) (M
Wh
/h)
In 2010: +347 MWh/h to -224 MWh/h. Deviations larger than ±200 MWh/h for 35 hours
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1000
1200
1400
EXISTING UNWANTED HOURLY SYSTEM IMBALANCE
0
200
400
600
800
1000
-200-150-100 -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 100 150 200More
ΔP (BiH) (MWh/h)
Nu
mb
er
of
ho
url
y i
nte
rva
ls i
n 2
01
0
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350
400
450
EXISTING NON-PLANNED HOURLY LOAD DEVIATIONS
Pload ϵ <800, 2100> MW
0
50
100
150
200
250
300
350
-300
-280
-260
-240
-220
-200
-180
-160
-140
-120
-100
-80
-60
-40
-20 0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
Nu
mb
er
of
ho
url
y i
nte
rva
ls i
n 2
01
0
ΔP (load) (MW)
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100
150
200
de
via
tio
n b
etw
ee
n r
ea
lize
d a
nd
fore
cast
ed
WP
P p
rod
uct
ion
(M
Wh
/h)
EXPECTED HOURLY WPP VARIATIONS
-200
-150
-100
-50
0
50
100
1
1001
2001
3001
4001
5001
6001
7001
8001
time (2010)
de
via
tio
n b
etw
ee
n r
ea
lize
d a
nd
fore
cast
ed
WP
P p
rod
uct
ion
(M
Wh
/h)
PWPPinst = 340 MW
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300
400
500
Ho
url
y d
ev
iati
on
s fr
om
th
e f
ore
cast
(M
Wh
/h)
WPP IMPACT ON SYSTEM DEVIATIONS
-400
-300
-200
-100
0
100
200
Load WPP generation Load+WPP generation
Ho
url
y d
ev
iati
on
s fr
om
th
e f
ore
cast
(M
Wh
/h)
max
min
1
-99%
98%
-98%
90%
-90%
50%
-50%
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EXPECTED NEED FOR RESERVE CAPACITY
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FUTURE EXPECTATIONS IN THE FUTURE EXPECTATIONS IN THE REGION
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WPP PROJECTS UNDER DEVELOPMENT
Currently 1731 WPP projects are under development in the region
722
617
700
800
Tot
al n
umbe
r of W
PP
pro
ject
s un
der d
evel
opm
ent
(78.000 MW)
8
132
4619 4 6 8 14
95
~10000 MW0
100
200
300
400
500
600
Slove
nia
Croat
ia
BiH
Serbia
UNMIK
Mon
teneg
ro
Mac
edonia
Alban
ia
Greece
Bulgaria
Roman
ia
Turke
y
TSO of
Tot
al n
umbe
r of W
PP
pro
ject
s un
der d
evel
opm
ent
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WPPs IN 2010 AND 2020
Source: ENTSO-E PEMD 2010
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RES LEGISLATIVE FRAMEWORK DEFINED?
4
YES: TSO of Greece, Croatia,Turkey, Romania
1
7
NO: TSO of Montenegro
PARTLY: TSO of Albania,Slovenia, UNMIK, Serbia,Macedonia, Bulgaria, BiH
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TSO OPINION ON LIMITING FACTORS FOR LARGER WPP INTEGRATION
5
10
66
8
10
12
Lim
iting
fact
ors
for
larg
er W
PP
inte
rgat
ion
3
1
54
1
0
2
4
6
Win
d en
ergy
pot
entia
l T
ariff
syst
em o
n RES
Com
plex
WPP
dev
elopm
ent p
roce
dure
Lac
k of le
gisla
tive
fram
ewor
k
Ava
ilabl
e sy
stem
rese
rve
Net
work
abso
rptio
n ca
pabil
ity in
the.
..La
ck o
f inv
estm
ents
Lim
iting
fact
ors
for
larg
er W
PP
inte
rgat
ion
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1252,5
900
1000
1100
1200
1300
avai
labl
y se
cond
ary
rese
rve
rang
e (
± M
W )
AVAILABLE SECONDARY RESERVE
80
200
47
160
40 20 35 13
300
150
600
0
100
200
300
400
500
600
700
800
Sloven
ia
Croati
a
BiH
Serbia
UNMIK
Mon
teneg
roFYR M
aced
onia*
Albania
Greec
eBulg
aria*
*Rom
ania*
**
Turke
y
TSO of
avai
labl
y se
cond
ary
rese
rve
rang
e (
± M
W )
* up to 50 MW during winter season** from -300 MW to +500 MW*** ±150 MW for peak-off and ±300 MW peak week day Total sum: 2897,5 MW
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6
8
6
8
10
12
Mai
n lim
itatio
n fo
r in
crea
sing
ava
ilabl
e se
cond
ary
LIMITATIONS FOR INCREASING OF AVAILABLE SECONDARY CONTROL
1
4
0
2
4
6
No ad
equat
e fin
ancia
l com
pensa
tion
f..
No
exist
ing in
stall
ed c
apac
ities
capa
b..
No
exist
ing su
ppor
t in
SCADA syste
m
No
adequ
ate
equipm
ent in
exis
ting
ins...
Mai
n lim
itatio
n fo
r in
crea
sing
ava
ilabl
e se
cond
ary
cont
rol
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500
600
700
WPP FORECASTING HELPS
0
100
200
300
400
500
150 MW 300 MW 600 MW 900 MW -wide
900 MW -conc
1300 MW -wide
1300 MW -conc
WPP scenario
Res
erve
cap
acity
(M
W)
98% (4-h forecast)
99% (4-h forecast)
100% (4-h forecast)
98% (2-h forecast)
99% (2-h forecast)
100% (2-h forecast)
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TOTAL SEE WPPs IN 2020
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TOTAL SEE WPPs IN 2020
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TOTAL SEE WPPs IN 2020
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TOTAL SEE WPPs IN 2020
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Comparing these regional variations to the country variations, we get clear benefit of the regional approach of WPP integration:
regional approach would decrease total reserve need for -2600 MWh/h and +2000 MWh/h .
regional approach would decrease system reserve needs for balancing WPPs to less than half of the existing individual country approach.
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GERMAN EXPERIENCEGERMAN EXPERIENCE
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GERMAN EXPERIENCE
“Last winter, on several occasions, Germany escaped only just large-scale power outages. Next winter the risk of large blackouts is even greater.
Several times, the pre-ordered reserve power plants in Austria and Germany were fully utilized. On several occasions, the network operators were not even able to mobilize additionally needed emergency reserves abroad. The number of short-term emergency interventions in network and power plant operating shot up by more than 30,000 percentage points on some network portions...”
"We narrowly escaped a catastrophe."
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"Had a failure of a large power plant taken place in this situation, there would have been hardly any room for manoeuvre available. We narrowly escaped a catastrophe.
GERMAN EXPERIENCE
There is no reason for a sigh of relief, however: Next winter, which will possibly be even more severe, everything could get much worse. Because then even less base-load gas- and coal-fired power plants will be available to reliably compensate for wind lulls and the absence of solar power for months... ”
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System operators are facing significant problems with large scale WPP integration
Technical and economic aspects should be
CONCLUSION
Technical and economic aspects should be resolved
Technical side: secondary and tertiary reserve adequacy
Economic side: financial compensation mechanism
Time is not on the operators’ side...
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