IEEE Power & Energy Magazine - Spanish - January/February 2021 - 65

Efecto de orden de mérito en el sistema
eléctrico europeo
Varios estudios han investigado recientemente el efecto de
la generación de energía renovable en el orden de mérito en
los mercados europeos. En este artículo se presentan dos
ejemplos representativos. El primero se centró en los precios
con un día de anticipación portugueses y fue realizado por el
Laboratorio Nacional de Energía y Geología. El periodo del
estudio varió del 1.º de enero al 30 de junio de 2016 (un total
de 4,368 h). Las simulaciones consideraron datos extraídos
del mercado de electricidad ibérico (español y portugués) y
fueron realizadas con la herramienta de simulación basada
en agentes, MATREM (para comercio entre varios agentes
en mercados de energía, Multi-Agent Trading in Energy
Markets en inglés). Los resultados indican que una penetra-
enero/febrero 2021	

Precio (€/MWh)

Precio (€/MWh)

Precio (€/MWh)

La característica principal de
este nuevo diseño de mercado
200
radica en el cambio el enfoque de
180
Demanda
Oferta
la escala de tiempo operativo y el
160
Oferta con menores
costo marginal a corto plazo del
140
fuentes de energía renovable
sistema hacia la escala de tiempo
120
de inversión y las inversiones de
100
capital necesarias para respaldar
80
la agenda de descarbonización,
P
60
como se ilustra cualitativamente
P∗
en la figura 1. Bajo una integra-
40
ción de las energías renovables a
20
gran escala, el costo marginal a
0
0
5,000 10,000 15,000 20,000 25,000 30,000 35,000
corto plazo y, en consecuencia, los
Energía (MWh)
precios en el mercado energético
se reducirán enormemente debido
a los muy bajos (casi nulos) cos- figura 2. Un ejemplo del efecto de orden de mérito en los precios del mercado del
tos de producción marginales de día en adelanto portugués.
estos recursos. A esto se lo conoce
extensamente como los efectos de las energías renovables
150
en la orden de mérito. Por otro lado, el valor y los precios
2030: 22 % de VRE
de los servicios auxiliares aumentarán en un orden de mag-
2030: 40 % de VRE
nitud, principalmente debido a los mayores requerimientos
2050: 22 % de VRE
de equilibrio impulsados por la variabilidad de las energías
100
2050: 40 % de VRE
renovables.
A pesar de la controversia en torno a los mercados de
capacidad, también se espera que su tamaño crezca en la
50
próxima década debido a la creciente necesidad de remu-
nerar y recuperar los costos de inversión de la generación
convencional, preservando la seguridad del suministro. Más
0
importante aún, se espera un gran aumento en los costos
0
25
50
75
100
totales de inversión en generación baja en emisiones de car-
Tiempo (%)
bono (independientemente de la reducción de los costos uni-
(a)
tarios de las energías renovables) para lograr los ambiciosos
150
objetivos de reducción de carbono. Además, la descarboni-
2030: 22 % de VRE
zación de los segmentos de la demanda final (p. ej., calefac-
2030: 60 % de VRE
2050: 22 % de VRE
ción, transporte e industria) también requerirá una inversión
100
2050: 60 % de VRE
significativa, y será necesario desarrollar iniciativas de polí-
ticas energéticas adecuadas.
50

0

0

25

50
Tiempo (%)
(b)

75

100

figura 3. Curvas de duración de precios en el sistema del
norte de Europa para una participación de VRE del 22 %
[líneas discontinuas en (a) y (b)], una participación del 40
% de VRE [líneas continuas en (a)] y una participación de
VRE del 60 % [ líneas continuas en (b)].

ción eólica del 28.1 % en el sistema portugués arrojó una
reducción de precio promedio de unos 17 €/MWh durante el
ieee power & energy magazine 	

65



IEEE Power & Energy Magazine - Spanish - January/February 2021

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