the spanish electricity system. preliminary report 2018 · 2019-03-04 · the spanish electricity...

The Spanish Electricity System

P R E L I M I N A R Y R E P O R T

2018

C O M M I T T E D

I N T E L L I G E N T

E N E R G Y

T O

1 2 3 4

Page 4

ELECTRICITYBALANCE,INSTALLEDPOWERCAPACITY AND TRANSMISSIONGRID

Page 10 Page 24

PENINSULARSYSTEM

NON-PENINSULARSYSTEMS

2

GLOSSARY OF TERMS

This preliminary report presents the provisional statistical data regarding the behaviour of the Spanish electricity system during 2018. Information prepared using data as at 16 January 2019.

C O N T E N T S

T A B L E

O F

1E L E C T R I C I T Y

B A L A N C E

I N S T A L L E D

P O W E R

C A P A C I T Y

A N D

T R A N S M I S S I O N

G R I D

E l e c t r i c i t y d e m a n d i n S p a i n i n 2 0 1 8 g r e w f o r t h e f o u r t h c o n s e c u t i v e y e a r , a l t h o u g h s h o w i n g a l o w e r g r o w t h r a t e t h a n t h a t r e g i s t e r e d i n t h e p r e v i o u s y e a r .

5

2 6 8 , 8 0 8 G W h

N AT I O N A L D E M A N D

2 0 1 8

+ 0 . 4 %C O M PA R E D T O

2 0 17

Electricity balance, installed power capacity and transmission grid 6

Electricity demand by autonomous communities and its variation with respect to the previous year

(GWh and %)

ANDALUSIA0.2 %

40,237 GWh

EXTREMADURA0.6 %

5,055 GWh

MURCIA2.5 %

9,613 GWh

COMMUNITY OF VALENCIA

2.0 %27,500 GWh

MADRID0.1 %

28,624 GWh

CASTILLA - LA MANCHA

0.3 %11,748 GWh

CASTILLA Y LEÓN1.5 %

14,288 GWh

GALICIA0.1 %

19,913 GWh

ASTURIAS0.4 %

10,639 GWh

CANTABRIA-2.2 %

4,275 GWh

BASQUE COUNTRY

1.1 %16,711 GWh

ARAGÓN 0.6 %

10,731 GWh

CATALONIA-1.0 %

47,323 GWh

BALEARIC ISLANDS

0.6 %6,052 GWh

MELILLA1.2 %

213 GWh

≤-1%

>-1 % a ≤0.2 %

>0.2 % a ≤1.3 %

>1.3%

LA RIOJA0.5 %

1,713 GWh

NAVARRA1.4 %

5,126 GWh

CANARY ISLANDS

-1.0 %8,840 GWh

CEUTA2.2 %

207 GWh

Demand for electricity in Spain has consolidated its positive trend begun in 2015, after registering falls in previous years due to the economic crisis. Specifi cally, demand in 2018 reached 268,808 GWh, 0.4% up on

the previous year.On the other hand, generation registered a fall of 0.5% with respect to 2017, affecting mainly coal-fi red and combined-cycle generating stations, whose production

decreased by 17.2% and 18.9% respectively. In terms of international exchanges, imports exceeded exports by 11,102 GWh.

7The Spanish Electricity System l Preliminary Report 2018

Installed Power Capacity by Autonomous Communities (MW)

ANDALUSIA15,485 MW

EXTREMADURA5,762 MW

MURCIA4,368 MW

COMMUNITY OF VALENCIA

8,224 MW

MADRID458 MW

CASTILLA - LA MANCHA8,204 MW

CASTILLA Y LEÓN

13,586 MW

GALICIA10,988 MW

ASTURIAS4,512 MW

CANTABRIA815 MW BASQUE

COUNTRY2,905 MW

ARAGÓN 7,183 MW

CATALONIA11,873 MW

BALEARIC ISLANDS

2,285 MW

MELILLA78 MW

≤1,000

> 1,000 a ≤ 4,000

> 10,000

LA RIOJA1,398 MW

NAVARRA2,832 MW

CANARY ISLANDS

3,006 MW

CEUTA91 MW

> 4,000 a ≤ 10,000

In 2018, installed power capacity in the complete set of generating facilities in Spain fell for the third consecutive year, ending the year with 104,053 MW, 0.1% less than the previous year, mainly due to the defi nitive

closure of the Tarragona Combined Cycle Power Station.Wind power has increased by 1.5%. The rest of the electricity generation technologies showed minimal or insignifi cant variations.

According to provisional data, the development of the electricity transmission grid in Spain during 2018 registered an increase of 277 km of new circuit and 2,592 MVA of new transformer capacity that bolsters the reliability

Electricity balance, installed power capacity and transmission grid 8

25,000

20,000

15,000

10,000

5,000

0

2014 2015 2016 2017 2018(1)

Evolution of the electricity transmission grid in Spain (km de circuito)

Provisional data pending audit (currently in progress). (1) Cumulative figures regarding kilometres of circuit as at 31 December of each year. Includes the transmission grid assets of those utility companies whose electricity distribution facilities are considered as an integral part of the overall transmission grid infrastructure nationwide.

42,713

Peninsula 400 kV Peninsula ≤220 kV Balearic Islands ≤220 kV

Canary Islands ≤220 kV

43,130 43,786 43,930 44,207

Electricity transmission grid facilities in Spain

Provisional data pending audit (currently in progress).Cumulative figures regarding kilometres of circuit and transformer capacity as at 31 December 2018. Includes the transmission grid assets of those utility companies whose electricity distribution facilities are considered as an integral part of the overall transmission grid infrastructure nationwide.

400 kV ≤ 220 kV

Peninsula Peninsula Balearic Islands

Canariy Islands Total

Total circuit (km) 21,730 19,133 1,854 1,491 44,207

Overhead lines (km) 21,613 18,343 1,133 1,187 42,276

Submarine cable (km) 29 236 540 30 835

Underground cable (km) 88 553 181 273 1,096

Transformer capacity (MVA) 81,490 613 3,433 3,310 88,846

T R A N S M I S S I O N G R I D

2 7 7 K M O F N E W

C I R C U I T C O M M I S S I O N E D

I N 2 0 1 8

of the transmission grid and the degree of grid meshing in order to guarantee security of supply.

2P E N I N S U L A R

S Y S T E M

E l e c t r i c i t y d e m a n d o n t h e S p a n i s h P e n i n s u l a m a i n t a i n s t h e p o s i t i v e t r e n d s h o w n o v e r t h e l a s t f o u r y e a r s . N o t e w o r t h y i s t h a t i n 2 0 1 8 o v e r 4 0 % o f t o t a l g e n e r a t i o n h a s b e e n o b t a i n e d u s i n g r e n e w a b l e e n e r g y t e c h n o l o g i e s .

2 5 3 , 4 9 5 G W h

P E N I N S U L A R D E M A N D

2 0 1 8

+ 4 0 %O F D E M A N D

C OV E R E D BY R E N E WA B L E

G E N E R AT I O N

Peninsular System12

3

2

1

0

-1

-2

-3

J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D

2014 2015 2016 2017 2018

Annual variation in peninsular electricity demand. Rolling year (%)

Adjusted Non-adjusted

Evolution of electricity demand on the spanish peninsula

Demand (measured at power station busbars) Components (%)

GWh D Annual (%) Working days Temperature Adjusted

2014 243,174 -1.1 0.0 -1.0 -0.1

2015 247,970 2.0 -0.1 0.4 1.7

2016 249,680 0.7 0.6 0.1 0.0

2017 252,506 1.1 -0.3 -0.2 1.6

2018 253,495 0.4 -0.1 0.2 0.3

Monthly variation in peninsular electricity demand. 2018 (%)

J F M A M J J A S O N D

Monthly -2.1 6.6 4.6 5.1 -0.6 -6.3 -1.1 1.0 2.9 0.6 0.1 -4.4

Cumulative -2.1 1.9 2.8 3.3 2.5 1.0 0.7 0.7 1.0 0.9 0.9 0.4

Variation with respect to the same month the previous year.

13

Peninsular electricity demand, according to provisional data, closed 2018 at 253,495 GWh, up 0.4% on the previous year. After factoring in the influence of seasonal patterns and working days, the annual variation rate of the demand is estimated at 0.3%.

The Spanish Electricity System l Preliminary Report 2018

8

6

4

2

0

-2

-4

-6

-8


Components of the monthly variation in peninsular electricity demand. 2018 (%)

Working days Temperature Adjusted demand Variation in demand

2 5 3 , 4 9 5 G W h

P E N I N S U L A R D E M A N D

2 0 1 8

+ 0 . 4 %C O M PA R E D T O

2 0 17

T e m p e r a t u r e s h a v e h a d a n i m p a c t o f 0 . 2 % o n t h e e v o l u t i o n o f c o n s u m p t i o n

Peninsular System14

6

4

2

0

-2

-4

-6


2014 2015 2016 2017 2018

Monthly evolution of the adjusted IRE. Rolling year (%)

General Services Industrial

The Red Eléctrica Index (IRE) is an electricity consumption indicator that includes preliminary data that shows the evolution of the monthly demand of large power consumers. In 2018, the composition of the working calendar had a positive impact of 0.1 percentage points on the evolution

of the IRE. Temperature levels, on the contrary, higher than those of the previous year, reduced the evolution of the IRE by 0.6%. After having factored in both effects, the general index decreased by 1.3% year-on-year, a figure which represents the first negative variation of the index since 2013.

IRE: VARIATION BREAKDOWN IN 2018 (%)

Gross Working days Temperature Adjusted

General -1.8 0.1 -0.6 -1.3

Industrial -2.6 0.0 -0.1 -2.5

Services -0.8 0.0 -1.4 0.6

Other 0.9 0.1 -2.3 3.1

-1 . 3 %I R E

(d e m a n d o f l a r g e p o w e r c o n s u m e r s)

By sector, the industrial sector has shown a downward trend month-on-month, closing the year with a percentage of -2.5%, compared to the adjusted growth of 2.2% in 2017, while the services sector showed an/a adjusted variation of 0.6%, compared to -0.7% in 2017.


MAXIMUM ANNUAL PENINSULAR DEMAND VALUES

2018

2017

2016

2015

2014

40,000 30,000 20,000 10,000 0 0 200 400 600 800

40,611 836806

844814

783

798756

817

817822

8 February (8:00-9:00 p.m) 8 February

19 January

18 February

6 February

11 February

18 January (8:00-9:00 p.m)

17 February (8:00-9:00 p.m)

4 February (8:00-9:00 p.m)

4 February (8:00-9:00 p.m)

3 August (1:00-2:00 p.m) 3 August

13 July

6 September

7 July

3 September

13 July (1:00-2:00 p.m)

6 September (1:00-2:00 p.m)

7 July (1:00-2:00 p.m)

17 July (1:00-2:00 p.m)

39,685

40,96139,302

38,08640,044

40,21840,146

38,74636,929

Winter (January-May/October-December) Summer (June-September)

Hourly demand (MWh) Daily demand (GWh)

15

4 0 , 9 4 7M W

M A X I M U M I N S TA N TA N E O U S

P O W E R

8 F E B R U A R Y

8 : 2 4 P. M .

- 9 . 9 %C O M PA R E D T O T H E A L L-T I M E H I G H S E T I N

2 0 0 7

The maximum instantaneous power, at the time of drafting this report, was recorded on 8 February at 8:24 p.m. when it reached 40,947 MW, a value 1% lower than the previous year’s maximum recorded in January, but still far

from the all-time record of 45,450 MW set in December 2007. The maximum hourly demand was also registered on 8 February between 8:00 and 9:00 p.m., when it reached 40,611 MWh, a value 0.9% lower than the maximum for 2017.

Peninsular System16

Regarding demand coverage, noteworthy was the increase in the contribution of hydro (13.2% compared to 7.2% the previous year), which has led to a decrease

(1) Pure pumped storage + estimated mixed pumped storage.

in the contribution of coal (13.5% compared to 16.5% in 2017). As for the technologies that have contributed most to demand coverage, nuclear has again ranked first with

Installed power capacity on the peninsula as at 31 december 2018 (%)

Electricity demand coverage on the peninsula. 2018 (%)

Electricity demand coverage. Maximum hourly demand coverage on the Peninsula. 2018 (%)

Nuclear 7.2% Wind 23.4%

Coal 9.7% Hydro 17.3%

Combined cycle 24.9% Solar photovoltaic 4.5%

Cogeneration 5.8% Solar thermal 2.3%

Non-renewable waste 0.5% Other renewables 0.9%

Pumped-storage 3.4% Renewable waste 0.1%




Cogeneration 11.2% Solar thermal 1.7%

Non-renewable waste 0.9% Other renewables 1.4%

Pumped-storage (1) 0.8% Renewable waste 0.3%

Import balance of international exchanges

4.3%



Combined cycle 22.6% Solar thermal 0.5%

Cogeneration 8.7% Other renewables 1.1%

Non-renewable waste 0.8% Renewable waste 0.2%

Pumped-storage (1) 2.1% Import balance of international exchanges

1.8%

a contribution of 20.6%, followed by wind with 19%. It should also be noted that close to 4.3% of the demand was covered by energy imported from other countries.

98,593 MW

253,495 GWh

40,611 MW8 February(8:00-9:00

p.m.)

The Spanish Electricity System l Preliminary Report 2018 17

4 0 . 1 %S H A R E O F

R E N E WA B L E S I N T H E T O TA L

E L E C T R I C I T Y G E N E R AT I O N

Renewable energy increased its share to 40.1% in the overall annual electricity generation, compared to 33.7% the previous year, this was helped mainly by an increase of 84.8% in

hydroelectric generation compared to 2017. Similarly, wind energy grew 2.9%, maintaining its ranking as the second source of electricity generation in 2018.

2018

2017

2016

2015

2014

0 10 20 30 40 50 60 70 80 90 100

Evolution of renewable and non-renewable peninsular electricity generation (%)

40.1

33.7

40.5

36.7

42.3

59.9

66.3

59.5

63.3

57.7

Renewable: hydro, wind, solar photovoltaic, solar thermal, other renewables and renewable waste. Non-renewable: pumped storage, nuclear, coal, fuel/gas, combined cycle, cogeneration and non-renewable waste.

Hydro Wind Solar photovoltaic Solar thermal Other renewables Renewable waste

2018

2017

2016

2015

2014

0 20,000 40,000 60,000 80,000 100,000 120,000

Evolution of renewable electricity generation on the peninsula (GWh)

Peninsular System18

Pumped-storage (1) Nuclear Coal Combined cycle Cogeneration Non-renewable waste

2018

2017

2016

2015

2014

0 20,000 40,000 60,000 80,000 100,000 120,000 140,000 160,000 180,000

Evolution of non-renewable electricity generation on the peninsula (GWh)

(1) Pure pumped storage + estimated mixed pumped storage,

Coal Combined cycle Cogeneration Non-renewable waste

2018

2017

2016

2015

2014

0 10 20 30 40 50 60 70 80

Evolution of CO2 emissions associated with electricity generation on the peninsula (Million, tCO2)

D e c r e a s e i n C O 2 e m i s s i o n s f r o m e l e c t r i c i t y g e n e r a t i o n t h a n k s t o t h e g r e a t e r c o n t r i b u t i o n o f r e n e w a b l e e n e r g y


Evolution of non-renewable electricity generation on the peninsula (GWh)

19

According to provisional data, producible hydroelectric registered the highest value of the last four years, 37,386 GWh, a value 28% higher than the historical average value and 134% higher

than that registered in 2017. Hydroelectric reserves of the complete set of reservoirs closed 2018 with a fi ll level of 44.1% of their total capacity.

Producible hydroelectric energy on the peninsula

GWh Index Probability of being exceeded (%)

2014 40,271 1.3 14.6

2015 25,141 0.8 79.0

2016 34,667 1.1 37.3

2017 15,972 0.5 99.3

2018 37,386 1.3 17.2

500

400

300

200

100

0


Daily producible hydroelectric energy on the peninsula in 2018 compared with the historical

average producible (GWh)

Wet Dry Historical average producible Producible 2018

Evolution of CO2 emissions associated with electricity generation on the peninsula (Million, tCO2)

125 122

123 125

107 6428 17 23 46

80 102

P r o d u c i b l e h y d r o e l e c t r i c h a s r e g i s t e r e d l e v e l s 2 8 % a b o v e t h e h i s t o r i c a l a v e r a g e v a l u e

Peninsular System20

Peninsular hydroelectric reserves as at 31 december 2018

2017 2018

Capacity GWh % Fill level GWh % Fill level

Annual management regime 8,967 2,617 29.2 4,717 52.6

Hyper-annual management regime 9,571 2,267 23.7 3,456 36.1

Total 18,538 4,883 26.3 8,172 44.1

Evolution of peninsular hydroelectric reserves (GWh)

19,000

17,000

15,000

13,000

11,000

9,000

7,000

5,000

3,000

2014 2015 2016 2017 2018

Statistical maximum

Statistical average Maximum capacity Real

Statistical maximum and minimum: average of the maximum and minimum values of the last 20 years.,

HYDROELECTRIC RESERVES

44.1 %

Statistical minimum


19,000

17,000

15,000

13,000

11,000

9,000

7,000

5,000

3,000

2014 2015 2016 2017 2018

21

S t r e n g t h e n i n g o f t h e t r a n s m i s s i o n g r i d w i t h t h e c o m m i s s i o n i n g o f n e w k i l o m e t r e s o f e l e c t r i c i t y l i n e t o e n s u r e a s a f e a n d e f f i c i e n t s u p p l y

According to provisional data, the peninsular electricity transmission grid registered an increase of 96 km of circuit during 2018 (2 km of 400 kV

and 94 km of 220 kV), bringing the total km of circuit in the peninsular transmission grid at year-end to 40,863 km.

2018 (1)

2017

2016

2015

2014

16,000 17,000 18,000 19,000 20,000 21,000 22,000

Evolution of the peninsular transmission grid (km of circuit)

(1) Provisional data pending audit (currently in progress).Cumulative fi gures regarding kilometres of circuit as at 31 December of each year. Includes the transmission grid assets of those utility companies whose electricity distribution facilities are considered as an integral part of the overall transmission grid infrastructure nationwide,

40,863

40,767

40,632

40,109

39,878

400 kV ≤220 kV

Evolution of the electricity transmission grid on the peninsula

2014 2015 2016 2017 2018 (1)

Circuit 400 kV (km) 21,094 21,184 21,619 21,728 21,730

Circuit ≤ 220 kV (km) 18,785 18,925 19,013 19,039 19,133

Transformer capacity (MVA) 79,271 79,271 79,871 80,421 82,103

(1) Provisional data pending audit (currently in progress).Cumulative fi gures regarding kilometres of circuit and transformer capacity as at 31 December of each year. Includes the transmission grid assets of those utility companies whose electricity distribution facilities are considered as an integral part of the overall transmission grid infrastructure nationwide.

Peninsular System22

Balance of international physical electrical energy exchanges (GWh)

International physical electrical energy exchanges. 2018 (GWh)

France Portugal Andorra Morocco Total

2014 3,567 -903 -235 -5,836 -3,406

2015 7,324 -2,266 -264 -4,927 -133

2016 7,802 5,086 -278 -4,951 7,658

2017 12,465 2,685 -233 -5,748 9,169

2018 12,047 2,655 -210 -3,389 11,102

Positive value: importer balance; Negative value: exporter balance

SAN

TA L

LOGA

IA32

0 KV

BAIX

AS1,

078

6,10

7

VIC

400

KVBA

IXAS

310

2,78

6

ADRA

LL11

0 KV

MAR

GIN

EDA

( AN

DOR

RA)

210

0

BEN

ÓS15

0 kV

LAC

D’O

O0

2

BIES

CAS

220

KVPR

AGN

ÉRES

347

710

HER

NAN

I40

0 KV

ARGI

A1,

284

5,41

9

ARKA

LE22

0 KV

ARGI

A44

649

0

IRÚ

N13

2 KV

ERRO

ND

ENIA

1

0

CONCHAS132 kV

LINDOSO

0

0

P, CRUZ 400 KV

MELLOUSSA (MOROCCO)

3,56

918

0

ALDEADÁVILA 400 KV

LAGOAÇA 2,511407

ALDEADÁVILA 220 KV

POCINHO 2 226224

ALDEADÁVILA 220 KV

POCINHO 1 199223

SAUCELLE 220 KV

POCINHO 159319

CEDILLO 400 KV

FALAGUEIRA 1,749291

BADAJOZ 66 KV

ALCÁÇOVAS 00

ROSAL DE LA FRONTERA 15 KV

V, FICALHO 00

BROVALES 400 KV

ALQUEVA 1,704281

PUEBLA DE GUZMÁN 400 KV

TAVIRA 1,40963

CARTELLE400 kV

LINDOSO

368

3,86

2

3N O N - P E N I N S U L A R

S Y S T E M S

25

E l e c t r i c i t y d e m a n d g r e w i n m o s t n o n - p e n i n s u l a r s y s t e m s , e x c e p t i n t h e C a n a r y I s l a n d s . O f n o t e i s t h a t r e n e w a b l e e n e r g y c o v e r e d m o r e t h a n 1 0 % o f d e m a n d i n t h e C a n a r y I s l a n d s , a s i g n i f i c a n t v a l u e f o r a n i s o l a t e d e l e c t r i c i t y s y s t e m .

1 5 , 3 1 3 G W h

E L E C T R I C I T Y D E M A N D I N N O N -

P E N I N S U L A R SYS T E M S

2 0 1 8

- 0 . 3 %C O M PA R E D T O

2 0 17

4

2

0

-2

-4

-6


2014 2015 2016 2017 2018

Annual variation of electricity demand. Balearic islands. Rolling year (%)

Non-Peninsular System26



2

0

-2

-4

-6


2014 2015 2016 2017 2018

Annual variation of electricity demand. Canary islands. Rolling year (%)

Evolution of non-peninsular electricity demand

Balearic Islands Canariy Islands Ceuta Melilla

GWh D Anual (%) GWh D Anual (%) GWh D Anual (%) GWh D Anual (%)

2014 5,577 -1.6 8,495 -0.1 212 5.1 210 0.1

2015 5,788 3.8 8,633 1.6 204 -3.9 213 1.6

2016 5,823 0.6 8,744 1.3 211 3.3 208 -2.3

2017 6,016 3.3 8,931 2.1 203 -3.7 210 1.0

2018 6,052 0.6 8,840 -1.0 207 2.2 213 1.2


M o r e t h a n 2 0 % o f t h e d e m a n d o f t h e B a l e a r i c I s l a n d s w a s c o v e r e d b y e n e r g y t r a n s f e r r e d f r o m t h e S p a n i s h P e n i n s u l a

Electricity demand on the Balearic Islands closed 2018 at 6,052 GWh, representing a growth of 0.6% compared

to 2017. After factoring in the influence of seasonal patterns and working days, the demand growth was 0.2%.

6 , 0 5 2 G W h

D E M A N D O N T H E BA L E A R I C

I S L A N D S 2 0 1 8

+ 0 . 6 %C O M PA R E D T O

2 0 17

20

15

10

5

0

-5

-10


Components of the variation in monthly electricity demand. Balearic islands (%)


27


Electricity demand on the Canary Islands closed 2018 at 8,840 GWh, representing a decrease of 1% with respect to

2017. After factoring in the influence of seasonal patterns and working days, a negative 1% variation in demand is also estimated.

8 , 8 4 0 G W h

D E M A N D O N T H E C A N A RY

I S L A N D S 2 0 1 8

-1 . 0 %C O M PA R E D T O

2 0 17

3

2

1

0

-1

-2

-3

-4


Components of the variation in monthly electricity demand. Canary islands. 2018 (%)



The maximum hourly demand on the Balearic Islands occurred on 6 August, between 1:00 and 2:00 p.m., when it reached 1,315 MWh, a value 2.2% lower than the 2017 maximum recorded on 3 August, between 1:00 and

2:00 p.m. The maximum hourly demand in the Canary Islands was recorded on 8 February, between 8:00 and 9:00 p.m., with 1,404 MWh, a value 0.2% higher than the maximum of 2017 registered on 17 October, between 8:00 and 9:00 p.m.

29

Monthly variation of non-peninsular electricity demand. 2018 (%)

Balearic Islands Canariy Islands Ceuta Melilla

January -8.6 1.3 0.0 -2.1

February 15.7 2.6 8.7 9.1

March 12.9 -0.9 7.5 1.4

April 2.8 -0.3 9.2 5.1

May -1.3 -1.8 -1.0 0.3

June -7.7 -3.1 -6.9 -5.5

July 1.1 -1.4 -2.4 -2.9

August -0.4 -3.1 -5.1 3.1

September 7.6 0.8 5.2 9.0

October 0.1 -1.4 11.8 1.1

November -1.8 -3.1 6.2 1.3

December -8.2 -1.2 -3.2 -3.5

Variation with respect to the same period of the previous year,

Maximum annual demand values (non-peninsular systems)

Balearic Islands

Canariy Islands

Ceuta

Melilla

1,049 18,78026,412

26,70327,224

693657

763715

27 February (8:00-9:00 p.m.) 27 February

10 February

8 febrero

6 February

8 February (8:00-9:00 p.m.)

7 February (8:00-9:00 p.m.)

6 February (8:00-9:00 p.m.)

6 August (13-14h) 6 August

13 September

25 September

8 August

24 September (1:00-2:00 p.m.)

25 September (1:00-2:00 p.m.)

8 August (1:00-2:00 p.m.)

1,315

1,4041,375

3835

4140

Winter (January-May/October-December) Summer (June-September)

Hourly demand (MWh) Daily demand (MWh)


Installed power capacity of non-peninsular systems remained stable in all systems, except in the Canary Islands, which registered an increase of 7.7%, due to an increase of 103.8% in installed wind power capacity. In terms of demand coverage, the most significant difference compared to the previous

year is the lower share of coal-fired generation in the Balearic Islands (nearly four percentage points less than in 2017). Of note is that renewable energy covered more than 10% of the demand in the Canary Islands, a significant value for an isolated electricity system.

Installed power capacity as at 31 december 2018. Balearic islands (%)

Electricity demand coverage. Balearic Islands. 2018 (%)

Coal 20.5% Non-renewable waste 1.6%

Diesel generators 8.0% Renewable waste 1.6%

Gas turbine 26.5% Wind 0.2%


Cogeneration 0.5% Other renewables 0.1%

Coal 39.5% Non-renewable waste 2.2%

Diesel generators 10.5% Renewable waste 2.2%



Auxiliary generation 0.2% Spanish Peninsula-Balearic Islands link

20.4%

Cogeneration 0.6%

2,285 MW

6,052 GWh

The Spanish Electricity System l Preliminary Report 2018 31

Installed power capacity as at 31 december 2018. Canary Islands (%)

Electricity demand coverage. Canary islands. 2018 (%)

Diesel generators 16.5% HidroWind 0.4%


Steam turbine 16.1% Solar photovoltaic 5.6%

Combined cycle 28.7% Other renewables 0.1%

Hydro 0.1%

Diesel generators 24.0% HidroWind 0.3%


Turbina de vapor 27.8% Solar photovoltaic 3.1%

Combined cycle 34.5% Other renewables 0.1%

Evolution of the non-peninsular electricity transmission grid

2014 2015 2016 2017 2018 (1)

Circuit 220 kV (km)

Balearic Islands 431 431 432 432 432

Canariy Islands 163 216 220 220 238

Total 594 647 652 652 670

Circuit 132 kV (km)


Canariy Islands - - - - 69

Total 220 346 472 472 586

Circuit ≤ 132 kV (km)


Canariy Islands 1,126 1,131 1,134 1,135 1,184

Total 2,019 2,027 2,030 2,039 2,088

Transformer capacity (MVA)

Balearic Islands 2,793 3,273 3,273 3,273 3,433

Canariy Islands 1,875 2,000 2,000 2,560 3,310

Total 4,668 5,273 5,273 5,833 6,743

(1) Provisional data pending audit (currently in progress).Cumulative figures regarding kilometres of circuit and transformer capacity as at 31 December 2018. Includes the transmission grid assets assets of those utility companies whose electricity distribution facilities are considered as an integral part of the overall transmission grid infrastructure nationwide.

3,006 MW

8,840 GWh

4G L O S S A R Y

O F

T E R M S

PUMPED STORAGE CONSUMPTION

Energy that pumped storage hydroelectric power stations use to elevate water from a lower reservoir to the upper one in order to be subsequently used to generate hydroelectric energy.

RENEWABLE ENERGY

Includes hydro, hydro-wind, wind, solar photovoltaic, solar thermal, biogas, biomass, marine energy, geothermal and renewable waste.

NON-RENEWABLE ENERGIES

Includes pumped-storage, nuclear, coal, fuel/gas, combined cycle, cogeneration and non-renewable waste.

PRODUCIBLE HYDROELECTRIC ENERGY

Maximum quantity of electricity that theoretically could be produced considering the water supplies registered during a specific period of time, and once the supplies used for irrigation or uses other than the generation of electricity have been subtracted.

PRODUCIBLE HYDROELECTRIC INDEX

Quotient between the producible energy and the average producible energy, both related to the same period and to the same hydroelectric system.

INTERNATIONAL PHYSICAL ELECTRICITY EXCHANGES

The movements of energy which have taken place via international interconnection lines during a given period of time. It includes the loop flow of energy as a consequence of the grid design.

INSTANTANEOUS POWER

Instantaneous power is the energy absorbed by the demand at any given moment of time.

33

Glossary34

TRANSMISSION GRID

The complete set of lines, switchyards/facilities, transformers and other electrical elements with voltages greater than or equal to 220 kV, and those other facilities, regardless of their power, which fulfil power transmission functions, international/cross- border interconnections and the interconnections with the Spanish non-peninsular electricity systems.

HYDROELECTRIC RESERVES OF A RESERVOIR

The hydroelectric reserve of a reservoir is the quantity of electricity that could be produced in its own power station and in all the power stations situated downstream, with the total drainage of its current useable water reserves and providing that drainage occurs without natural contributions.

The annual management regime reservoirs are those in which complete drainage would take place in less than one year. Hyper-annual management regime reservoirs are those in which the total drainage time takes more than one year.

Published byRED ELÉCTRICA DE ESPAÑAPaseo del Conde de los Gaitanes. 17728109 Alcobendas (Madrid)Tel, 91 650 85 00Fax, 91 640 45 42www,ree,es

Co-ordination of the publicationCorporate Image and Brand Department

Technical co-ordinationDepartment of Access to Information on the Electricity

Design and layout

Other data regarding this publicationPublication date: January 2019

English translation by Wayman English International www.waymanenglish.com

This English version is a translation of the original and authentic Spanish text found in the ‘EL SISTEMA ELÉCTRICO ESPAÑOL – AVANCE 2018’ report, originally issued in Spanish. In the event of any discrepancy, the Spanish-language version shall prevail.

Red Eléctrica works on selecting the most legible typographical font for their publications.The typographical font Geogrotesque has been used for the texts and graphics in this report.

www,ree,es

Paseo del Condede los Gaitanes. 17728109 Alcobendas (Madrid)www,ree,es

the spanish electricity system. preliminary report 2018 · 2019-03-04 · the spanish electricity...

Documents