International approach – Is DSM the answer for intermittent renewable generation?

Contribution to Chester IEA, Cooperative
seminar.
20 Oct 2010
Carmen Rodríguez Villagarcía,
REE
K-ER14-IDAIE DGD
Is DSM the
answer for
intermittent
renewable
generation?

Título general presentación
RED ELÉCTRICA DE ESPAÑA
2
Do we ask to day, in 5 years or 10 or 20?
Just now?
A demand response portfolio to operate jointly with an intense
wind generation employed on the electric delivery will be a
paradigm for some countries as Spain.
The technical viability is not in debt.
How much are the benefits and how much is the cost and the
results?
Red Eléctrica de España, Spanish system operator, is
developing specific data sets and methodologies to do the
estimations

3
To concrete cases
Demand response in the lover valley period with intense wind
generation. How to operate it?
High level of Demand Response provided by households, First
estimations for 2020

0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1999 2000 2001 2002 2003 2004 2005 2006 2007 2008
Eolica
Ciclo Combinado
Fuel‐Oil
Fuel‐Gas
Hidráulica
Resto Reg. Esp
Carbón
Nuclear
7.4%
20.3%
16.0%
0.7%0.1%
31.5%
10.7%
13.2%
Hidráulica
Nuclear
Carbón
Fuel‐Gas
Fuel‐Oil
Ciclo Combinado
Eolica
Resto Reg. Esp
Mix de generación
eléctrica 2008
4
Contexto energContexto energéético. Mix de generacitico. Mix de generacióón eln elééctricactrica
En 2008 las principales tecnologías
fueron los ciclos combinados, la
nuclear y el carbón.
En los últimos años se observa un incremento de la participación
de la eólica y los ciclos combinados, mientras que el carbón, la
nuclear y la hidráulica reducen su contribución.
Evolución del mix español de generación
El sistema eléctrico español sigue siendo altamente dependiente de los
combustibles fósiles

5
CaracterizaciCaracterizacióón de la demanda eln de la demanda elééctricactrica
Ratios punta-valle elevados
Ratios elevados para el cociente entre
demanda punta y demanda valle diaria,
con valores comprendidos entre 1,35 y
1,75 (Valor medio de 1,52)
4
600
620
640
660
680
700
720
740
760
780
800
1/07
2/07
3/07
4/07
5/07
6/07
7/07
8/07
9/07
10/07
11/07
12/07
GWh medios
diarios
Comportamiento estacional a
lo largo del año
Mayor demanda en Invierno y verano que
en primavera y otoño. Fundamentalmente
asociada a la temperatura y al número de
horas de luz solar.
3
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
ene-05
mar-05
may-05
jul-05
sep-05
nov-05
ene-06
mar-06
may-06
jul-06
sep-06
nov-06
ene-07
mar-07
may-07
jul-07
sep-07
nov-07
Ratio Diario
Media Mes
Lineal (Ratio Diario)
20,000
25,000
30,000
35,000
40,000
45,000
M W
El día de la punta de
invierno de 2.007 el
ratio punta-valle fue
de 1,73

6
Demand response in the lover valley period
with intense wind generation
Translating consumption from
System peak periods to valley
implies:
Less grid energy losses
Less spinning reserves energy
consumption
Less CO2 emissions from the
peak generation mix
Less need of new generation
and grid investments
The added flexible
loads in the valley
gives quick
reserve for wind
power unpredicted
variations

7
Integración de la generación renovable no gestionable
Retos para el sistema elRetos para el sistema elééctricoctrico
Demanda baja junto con
alta producción de eólica
y elevado error de
predicción obligaron a
reducir la producción de
eólica el día 03/11/2008

8
The reduction of the electric consumption
is sharply reduced in the ES peak periods.
The system load curve will be
significantly less pronounced and the
consumption in the valley will rise
SUPERPUNTA A LAS 19:00LABORAL INVIERNO CRUDO PENÍNSULA
0
10.000.000
20.000.000
30.000.000
40.000.000
50.000.000
60.000.000
70.000.000
80.000.000
0:00
2:00
4:00
6:00
8:00
10:00
12:00
14:00
16:00
18:00
20:00
22:00
Hora
PotenciakW
0
0
0
0
0
0
0
0
0
0
0
DemandadelSistemaMW.
Resto del Sistema Demanda Residencial
Serie4 Residencial tras flexibilidad
Mostrar demanda del Sistema en el mismo eje Mostrar todos los hogares
All domestic direct heating in
Spanish households is
replaced by a system with
storage capacity
High level of Demand Response provide by households,
First estimations for 2020

9
The domestic onsite metered
energy consumption, will not
be reduced significantly
But
taking account of just the
network loses the aggregated
savings are estimated in:
.15 million of MWh of energy
consumption
261 thousand of CO2 Tm
The system peak is reduced
by2.3 thousand of MW
The system valley 5 hours
power average rise by 1.12
thousand of MW
0
10.000.000
20.000.000
30.000.000
40.000.000
50.000.000
60.000.000
70.000.000
80.000.000
0:00
2:00
4:00
6:00
8:00
10:00
12:00
14:00
16:00
18:00
20:00
22:00
Hora
PotenciakW
0
0
0
0
0
0
0
0
0
0
0
All domestic direct heating in Spanish
households is replaced by a system with
heat storage capacity, in 2020 scenario
Cold labor winter day
Rest of the system demand
Residential demand
Residential after DSM
PowerdemandKW

10
In the system there
will be 1.3 MW
interruptible power
to avoid spinning
reserve energy
consumption
Source, DERED
simulation Tool, ADERE
project, Residential
Demand Operability
Analysis. Red Eléctrica
de España, Department
of DSM, 2008
0
10.000.000
20.000.000
30.000.000
40.000.000
50.000.000
60.000.000
70.000.000
80.000.000
0:00
2:00
4:00
6:00
8:00
10:00
12:00
14:00
16:00
18:00
20:00
22:00
Hora
PotenciakW
0
0
0
0
0
0
0
0
0
0
0
The household permit some consumption interruption by an ES
signal emitted by EE or environmental impact criteria
Cold work winter day
Residential demand
Residential after DSM
PowerdemandKW
Hour

11
11
Anexo I. Caso especial: El vehAnexo I. Caso especial: El vehíículo elculo elééctricoctrico
Mejora de la integración de
generación eólica en el
sistema eléctrico
El uso del EV puede reducir el consumo de
combustibles fósiles y de emisiones de CO2
ya que la energía eléctrica demandada puede
proceder de fuente renovables
El vehículo eléctrico puede suponer
una mejora de la eficiencia en el uso
final de la energía
El vehículo eléctrico constituye una oportunidad de mejorar la
eficiencia del sistema energético
1 millón de vehículos eléctricos (EV)
previstos en 2014
Mayor producción eólica en periodos valle
Capacidad de integración de esa mayor
producción de eólica mediante la gestión
de la carga de los EV.
0:00
2:00
4:00
6:00
8:00
10:00
12:00
14:00
16:00
18:00
20:00
22:00
MW
Tiempos de carga previstos
de entre 3 y 8 horas

12
Next Questions
Is that advantage in the windy valley enough to justify
DSM?
How to quantify the overall effects at any system
operation case and in any of the heterogeneous
electric systems infrastructures and operational
conditions?

13
An Objective for the DSM IEA agreement
To establish the framework to develop initial
specification of the statistics and calculus instruments
for the additional effects of DSM on the global energy
efficiency and environmental impact, via the electric
systems
These instruments should:
Work easily on the diversity of system scheme resources and
operation
Be persistent in the quick evolution of electric systems

14
The task XXI of the DSM Agreement is in charge on the process
of standardization of energy saving calculations.
The experts agree in their work plan to consider:
The induced effects on the Electric Systems Energy Efficiency and
Global Energy Efficiency
The induced effects on CO2 emissions
But it is considered that previous to introducing these concepts
in the task development of formulae, a work on standardization
should come from the DSM System Operation scope.

15
The task XVIII; DSM and climate change is in charge on the
recognition of the cross effects between climate change
actions and EE and DSM Actions
Calculations on the effects of DSM on CO2 emissions of some
concrete Electric Systems have been carried out.
The principles, methodologies and tools that will eventually give
generalized and comparable results for DSM effects on ES
emissions and energy efficiency have an important degree of
coincidence
The task XVIII provides a privileged background to the new
proposed task

16
To answer if DSM is the solution.
As wider is the scope more recourses
dedicated to DSM are justified
The wide Scope of the DSM effects on
the Global efficiency and
environmental impact.
How wide should it be?

EE,DSM,DR
Products
Consumer Onsite
Electricity
Electric system Energetic
system
Energy GHG
Electricity
Energy GHG
Environment
sensible
infrastructur
es
Regional
& global
DSM GLOBAL
EE and Environment Impact EFFECT COMPONENTS

EE,DSM,DR
Products
Consumer Onsite
Electricity
Electric system Energetic
system
Energy GHG
Electricity
Energy GHG
Environment
sensible
infrastructur
es
Regional
& global
DSM GLOBAL
Research on going
CRV3

CRV3 Carmen Rodríguez Villagarcía, 19/10/2009

EE,DSM,DR
Products
Consumer Onsite
Electricity
Electric system
Energetic
system
Energy GHG
Electricity
Energy GHG
Environment
sensible
infrastructur
es
Regional
& global
DSM GLOBAL
Proposed scope of the
new task

EE,DSM,DR
Products
Consumer Onsite
Electricity
Electric system
Energetic
system
Energy GHG
Electricity
Energy GHG
Environment
sensible
infrastructur
es
Regional
& global
DSM GLOBAL
Extension of the new task
results to global calculations

EE,DSM,DR
Products
Consumer Onsite
Electricity
Electric system
Energetic
system
Energy GHG
Electricity Energy GHG
Environment
sensible
infrastructur
es
Regional
& global
DSM GLOBAL
Induced effects between
Dynamic Demand Response and
Static Energy Saving
Consumer interactive learning
process

22
Added global effects of DSM via
Electric System.
A LIST
Less grid energy losses
Less spinning reserves energy consumption
Less primary energy consumption per MWh produced on
the power station portfolio.
Less CO2 emissions per electricity unit produced on the
power station.
Less need of new generation and grid investments
Effects on the viability of the development of SMART
GRIDS,VIRTUAL POWER PLANTS, MICROGRIDS, that are oriented to
reduce the energy consumption and the environment
impact of the Electric System.
Reduction of other energy consumptions out of the ES;
natural gas and other fuel systems: Fuel shifting.

23
Trade off DSM - Electric System accounts
Electric System efficiency (energy and environment) – Electric
market demand response
Electric system efficiency (energy and environment) – Electric
utilities (generators, TSO, DSO) Retailers investments and
expenditures

24
Background
The task XXI of the DSM Agreement is in charge on the process
of standardization of energy saving calculations.
The experts agree in their work plan to consider:
The induced effects on the Electric Systems Energy Efficiency and
Global Energy Efficiency
The induced effects on CO2 emissions
But it is considered that previous to introducing these concepts
in the task development of formulae, a work on standardization
should come from the DSM System Operation scope.CRV1

25
Background
The task XVIII; DSM and climate change is in charge on the
recognition of the cross effects between climate change
actions and EE and DSM Actions
Calculations on the effects of DSM on CO2 emissions of some
concrete Electric Systems have been carried out.
The principles, methodologies and tools that will eventually give
generalized and comparable results for DSM effects on ES
emissions and energy efficiency have an important degree of
coincidence
The task XVIII provides a privileged background to the new
proposed task

26
To answer if DSM is the solution.
What are the costs of the DSM
integration on the system
operation?

27
Keys of reduced cost on the current
technology framework.
Smart plugs/smart appliances. Standard or customized control
boxes. Combining, electric appliances, isolation mechanisms,
blinds and onsite generation
Cheap and universal communications for control, mobile phones
and or internet?
Direct control by the operator of aggregations of million of
medium or small loads
Simple DR delivery quantification procedures
ESCO´S And Aggregators he example of the banking business in
the Mobile

28
Background
Some tasks of the DSM Agreement research the business models
to reach demand response .
Task VI Competitive energy services
Task XIX: Micro Demand Response and Energy Savings
Task XX: Branding on Energy efficiency
CRV2

29
Next step to answer the question
Probably we should begin to draft the fist Income Statement
methodologies, in terms of currency and physic units; KWh,
CO2 Tons, Km of lines, etc

30
Tank you
http://www.ree.es
Carmenrodri@ree.es

International approach – Is DSM the answer for intermittent renewable generation?

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