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IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
Session 3: PV and Utilities -PVPS global experience and trends
Session 3a: PV as a reliable and environmental friendly electricity source:
Grid integration, PV performance and environmental aspects.
PV penetration in grids - issues and trends
(from the studies of Task 14)
Kazuhiko Ogimoto
(PVPS Task 14, The University of Tokyo, Japan)
ASEAN POWER WEEK
Workshop on PV and Utilities in
the context of the ASEAN Power
Week in Bangkok
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
IEA PVPS Task 14
High Penetration PV in Electricity Grids
• Contents
– Back ground
– Overview IEA PVPS Task 14
– Work plan
– Update on Progress
– Dissemination
– Status of participation
– Key matters for ExCo
– Challenges
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
IEA PVPS Task 14
High Penetration PV in Electricity Grids
• Contents
– Back ground
– Overview IEA PVPS Task 14
– Work plan
– Update on Progress
– Dissemination
– Status of participation
– Challenges
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
(Quelle
: E
PIA
-Glo
bal M
ark
et O
utlook 2
013)
,
2012 fig
ure
s
• End 2014: around 177 GW installed worldwide (PVPS annual report )
• PV penetration levels growing worldwide
DEU ~38 GW
CHN ~28 GW (+10 in 2014!)
ITA ~19 GW
JAP ~23 GW (+10 in 2014)
USA ~18 GW
High Penetration of PV in Electricity Grids
A global trend
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
From “local high penetration” to “RES dominated” bulk power systems
• Partial solar eclipse on March 20, 2015
• Concerns in Germany on stability of overall system
• Uncertainty and Variability will continue to grow as critical issues
High Penetration of PV in EuropeP
V p
ow
er
[GW
] Clear sky
Cloudy
PV power [GW]
Forecast (worst cases) Actual PV power generation
Source: TRANSNET BW
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
As a results of high feed-in tariff since July 2012 in Japan, PV has penetrates
into 10 balancing areas, especially in remote areas where land price is lower.
Now, the Kyushu power system with PV penetration and limited interconnection
is one of the systems with severest operation conditions under RE penetration.
High Penetration of PV in Japan
One-day Dispatch in Kyushu in May with lowest power demand and highest PV generation.
(8GW PV in 15 GW annual peak load, Source: Material of Power System working Group (2014))
Nuclear
PV curtailmentOf 2.09GW
Pump-up
Hydro
Geothermal
Pumping & Export of 2.32GWDemand (7.88GW)
Thermal
PV integration of 6.22GW
Peak load
of 9.21GW
Base Supply
of 6.07GW
Demand
Thermal
Pump-up
P-gen
Thermal for LFC
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
IEA PVPS Task 14
High Penetration PV in Electricity Grids
• Contents
– Back ground
– Overview IEA PVPS Task 14
– Work plan
– Update on Progress
– Dissemination
– Status of participation
– Challenges
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
Task 14: Overall objectives of this
international collaboration
• Promote the use of grid connected PV as an important source in electric power systems also on a high penetration level where additional efforts may be necessary to integrate the dispersed generators in an optimum manner.
• Develop and verify mainly technical requirements for PV and electric power systems to allow for high penetrations of PV systems interconnected with the grid
• Discuss the active role of PV systems related to energy management and system control of electricity grids
• Reduce the technical barriers to achieve high penetration levels of distributed renewable energy systems on the electric power system
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
Task 14: Overall objectives of this
international collaboration
• Discuss the market implications of technical solutions for the integration of PV at high penetration levels
• Discuss and develop new solutions for operation and grid planning for High PV Penetration scenarios
• Re-think existing rules-of-thumb and practices with respect to their validity with high-penetration PV
• Discuss the opportunities for PV to provide advanced grid support services for local as well as system wide use.
• Discuss the possible role of PV in a future Smart Grid
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
• Support PV integration on high penetration levels by
► access to more transparent technical analyses
► guidelines and best practices for industry, network operators, energy
planners as well as authorities in the energy business
► comprehensive international studies for high penetration PV
• Develop key methodologies for large scale PV integration
► PV Power Forecast
► Active management and control of grid integrated PV
► Grid interconnection studies and planning
► Technical standards and interconnection requirements
• Active dissemination of objective and neutral high-quality information
► Task 14 Reports
► Task 14 Workshops
► National information networks of Task 14 members
IEA PVPS Task 14:
Outcomes
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
IEA PVPS Task 14
High Penetration PV in Electricity Grids
• Contents
– Back ground
– Overview IEA PVPS Task 14
– Work plan
– Update on Progress
– Dissemination
– Status of participation
– Challenges
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
IEA PVPS Task 14 (2014 - 2018)
Organization and structure
• Cross Cutting Subtask (NEW): Market
implications with High PV Penetration
• Subtask 1(extended): Energy management with
high PV penetration: Switzerland
• Subtask 2 (extended): High penetration in local
distribution grids: Germany
• Subtask 3 (extended): High penetration solutions
for central PV generation scenarios: Japan
• Subtask 4 (extended): Smart power converters for
high penetration PV and Smart Grids: Austria
• Subtask 5 (NEW): Communication and Control for
high penetration of PV: Singapore & Germany
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
IEA PVPS Task 14
High Penetration PV in Electricity Grids
• Contents
– Back ground
– Overview IEA PVPS Task 14
– Work plan
– Update on Progress
– Dissemination
– Status of participation
– Challenges
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
Task 14 – Previous Meetings
• 10th experts meeting Kyoto, Japan, November 2014
• 8th experts meeting Sydney, Australia, November 2013
• 9th experts meeting Geneva, Switzerland, April 2014
• Informal experts meeting, Amsterdam, September 2014
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
Monitoring and prediction tools
(Subtask 1, CHE) Figures revised
Monitoring and prediction tools to anticipate the shift in local grid
• Achievementso Questionnaire “Use of solar and PV
forecasts for enhanced PV integration” filled in by 14 organizations
o Forecasting methods for different forecast horizons
o Point forecasts and area forecasts
o Forecast accuracy
• Deliverableo D 1.1: joined Report with activity 3.1 “PV and
solar forecasting : State of the art”
published in October 2013
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
Analysis of PV generation in correlation with energy demand in household
• Basis case applied in- Germany
- Switzerland
- Portugal
- Denmark
- USA: Virginia & Tenessee, Colombus Ohio, Southern California
Typical Houshold case studies: GER, CHE
PV generation in correlation with energy
demand (Subtask 1, CHE)
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
Energy management system and local
storage (Subtask 1, CHE)
Analyze energy management system and local storage to
improve the penetration of PV in local grid (household or very
local industrial loads)
• Achievements
o Whitepapers and studies analysed (CHE, USA, SWE)
o Test site in CHE for the local management of PV energy with storage
o Analyses of several typical household load profiles (various countries)
o Overview of local energy management concepts together with
photovoltaic
o Self-consumed PV potential is estimated depending on the country and
the load profile.
• Deliverable
o D 1.2 : Report “Network driven demand side management and storage in
households” (by 05/2015)
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
Existing methods to describe variability
• Representative Blocks
• Dispersion Factor Method and ramp rate correlation
• Wavelet Variability Model (WVM)
PV variability models (Subtask 1, PRT)
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
Task 14 Extension – Subtask 1
Energy management with high PV penetration
• Context
– PV is a key driver of new opportunities for local energy management. Existing rules for the integration of PV into grid are generally missing the opportunity to match production with an existing consumption.
– Focus on the technical and economic value of energy management in relation with local consumption in other configurations. Local energy management can facilitate the integration of measure to integrate PV as a major energy sources.
• Objectives
– Identifying technical solution and economic opportunities with PV and local energy management in residential area (extension of 1.2)
– Identifying technical solution and economic opportunities with PV and local energy management in industrial area (new 1.4)
– Identifying technical solution and economic opportunities with PV and local energy management in virtual power plant (new 1.5)
• Confirmed Lead: CHE (PLANAIR)
• Duration: 2014-2018
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
• Distribution grid case studies of 11 countries
– Australia, Austria, Belgium, China, Germany, Greece, Italy, Japan, Spain, Switzerland, USA
• Each case study includes
– The National Distribution Grid Structure
– Interconnection of PV Systems: Technical and Regulatory Framework
– Required Control Capabilities for Photovoltaic Inverters
– Case Studies for High PV Penetration Scenarios
– Upcoming Regulatory Changes and Future Challenges for High PV Penetration
• State-of-the-Art and advanced solutions for the transition of local distribution grids provided by
– the PV system (inverter)
– the grid operator (planning & operation)
Source: E.on Bayern/Fraunhofer IWES
Source: SMUD/NREL
High PV penetration in distribution
grids (Subtask 2, GER)
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
• The role of PV in Electricity grids at various penetration levels
High PV penetration in distribution
grids (Subtask 2, GER)
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
• Report on current experiences of high PV penetration and active / reactive power control strategies in distribution grids
-> country specific measures for increasing the local PV penetration in distribution grids in a technically effective andeconomically efficient way
(published by 10/2014)
• Report on Recommendations for managing the transition from One-Directional to Bi-DirectionalDistribution Grids
– State-of-the-Art and advanced solutions for the transition of local distribution grids
– Entering the final stage: Future prospects for the transition towards high national penetration scenarios
(Submission by 10/2014)
• Presented at EU PVSEC Amsterdam 2014 (keynote)
High PV penetration in distribution
grids (Subtask 2, GER)
Deliverables
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
Task 14 Extension – Subtask 2
High PV penetration in local distribution grids
• Context
– New challenges include technical as well as economical aspects of distribution system operation and planning
– Need for standardised integration solutions for PV dominated distribution systems
• Objectives
– Collection and presentation of distribution feeder taxonomy approaches for high PV-penetration scenarios (Activity 2.5)
– Presentation of PV screening techniques for PV interconnection studies (Activity 2.6)
– Operational and long-term planning using advanced capabilities and techniques (including short-term PV forecast approaches, advanced functionalities of PV systems…) (Activity 2.8)
– Discussion and description of the future capabilities of distribution grid to transmission system for high PV-penetration scenarios (Activity 2.7)
• Confirmed Lead: DEU (Fraunhofer IWES)
• Duration: 2014-2018
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
• Transmission-Level Power system studies of 10
countries
– Japan, USA, Italy, Switzerland, Belgium, Denmark, Germany,
Greece, Australia, China
• Major issues of increasing PV penetration at
transmission level is the demand supply balancing
– due to an increased variability of PV and other variable
renewable generation
– due to decreased flexibility of the traditional generation
fleetness.
• This requires
– Variability analysis and Forecasting
– Power system operation optimization
– Deployment balancing (flexibility) capabilities including
demand activation, distributed storage, and interconnections
– Power System Augmentation Planning including major PV
Penetration
Sourc
e: Y
.M. S
ain
t Dre
nan/F
raunhofe
r IWE
SS
ourc
e: N
RE
L
Power System Operation Planning with
PV Integration (Subtask 3, JPN) REVISED
MARKET GATE CLOSURE
LOAD forecast error
(Gaussian distribution) Depending on weekly hour
WIND forecast error (Gaussian distribution)
Depending on time horizon
SOLAR PV
forecast error (Gaussian distribution)
Depending on sky
clearness index
Forced outage probability of thermal
power plants (non-Gaussian, discrete
probability density)
Simple Gaussian summation
Summation convolution (level of confidence 95%)
REQUIRED POWER BALANCING RESERVE for the specified hourly time horizon of the day a-head
UNCERTAINTIES EVALUATION & PROBABILISTIC COMBINATION
Forecast of: Load, Wind, Solar PV.
Conventional generation unit commitment &
dispatching)
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
• In order to realize higher penetration of PV resolving the issues of transmission
levels, the operational and asset optimization of traditional and innovative
components is inevitable.
Power System Operation Planning with
PV Integration (Subtask 3, JPN) REVISED
Subtask 3 Report: Figure 2.5-1: The enhanced power system operation by optimized
utilization of the whole resources of flexibility against the smoothed variability
Source: Ogimoto, Laboratory.
Demand
activation
Generation control/
curtailment
Forecasting and optimum operation
Enhanced
operation
Reinforcem’tand enhanced operation
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
Power System Operation Planning with PV
Integration (Subtask 3, JPN)
Deliverables• Activity 3.1: Report on System-wide PV generation
analysis and forecast (published 10/2013)
• Activity 3.1+3.2: Report “Power system operation planning with PV integration”-> Describes high penetration solutions for central PV generation scenarios including aspects of Power system
operation and augmentation planning with PV integration.
(published 04/2015)
• Presented at EU PVSEC Amsterdam 2014
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
Task 14 Extension – Subtask 3 High penetration
solutions for central PV generation scenarios
• Context
– Subtask 3 will survey the resources for flexible transmission system operation, surveys and case studies of innovative transmission system operation with generation forecast in two steps, and surveys and case studies of asset optimization for high PV penetration.
• Objectives
– Identification of existing and future flexibility resources for flexible transmission system operation (Activity 3.4)
– Evaluation of capability of innovative power system operation of the transmission level with generation forecast in two steps (Activity 3.5)
– Evaluation of transmission stability of a power system with flexibility resources (Activity 3.6)
– Recommendation of Asset optimization for high PV penetration (Activity 3.7)
• Confirmed Lead: JPN (University of Tokyo)
• Duration: 2014-2018
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PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
IEA INTERNATIONAL ENERGY AGENCY
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Smart Inverters for High-Pen PV
(Subtask 4, AUT)
• Define inverter technology requirements for successful integration of a high penetration of PV in the electricity grids
• Discussion and study on current vs. future requirements for PV inverters
– The inverter as interface between PV generation and the grid
– The inverter as future multifunctional device for grid support
– The inverter as future hub for system monitoring and control
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
• Worldwide collection and review of requirements for PV inverters and grid connection
– Functional requirements
– Protection
– Control
– Safety
– Focus: specific requirements for grid support by PV
– Compatibility of requirements with High-Pen PV
• Report on Opportunities for Smart PV inverters in High-Penetration scenarios
(Submission by 06/2015)
• Report on Technical capabilities and Inverter Topologies
(Submission by 06/2015)
Smart Inverters for High-Pen PV
(Subtask 4, AUT)
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
Task 14 Extension – Subtask 4 Smart Power
Converters for high-penetration PV & Smart Grids
• Context
– The subtask will discuss and investigate new requirements and new functionalities of power converters (inverters) which are needed for the full integration of PV generation systems into future Smart Grids.
– A particular focus will be laid on grids and power systems with a massive share of non-rotating variable generation (mainly PV and wind), where stability and control issues become vital for the extended deployment of RES.
• Objectives
– Survey, highlight and propose power converter technology requirements for the integration of PV systems into future grids with a massive share of non-rotational generation and RES
– Provide a continuously updated overview on grid connection requirements for PV systems and PV power converters
– Investigate needs and requirements (functionalities as well as ICT related) arising from grid control schemes in order to make the PV system a key part of future smart grids
– Investigation and benefit analysis of possible add-on functionalities of PV power converters (e.g. STATCOM operation, synthetic inertia etc.)
– Discuss and review new opportunities for grid services provided by PV power converters in combination with local storage
• Confirmed Lead: AUT (AIT Austrian Institute of Technology)
• Duration: 2014-2018
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
Task 14 Extension – New Subtask 5
Communication and control for High Pen PV
• Context
– To balance the interests and technical solutions for a whole variety of new and future technologies (not only PV) include renewable energy integration (not only focusing on solar, but especially also on wind, where applicable), and extend even more so into smart metering, demand-side management and/or direct load control.
– To ensure that PV grid integration solutions are well-aligned with such comprehensive requirements it is indispensable to analyze also in detail the challenges and solutions for the PV grid integration from a smart grid perspective and to suggest future-compliant solutions..
• Objectives
– Analyze appropriate control strategies and communication technologies to integrate a high number of distributed PV in smart electricity networks
– Overview of communication technologies, protocols, interfaces
– Special focus on IT-related aspects (incl. cyber security)
– PV as enabling technology for smart grids
• Tentative Lead: GER (Ulm) / SGP (NUS-SERIS)
• Duration: 2014-2018
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PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
• Objectives
– Introduce aspects related to market design with High PV Penetration into the scope of Task 14 and coordinate these activities with Task 1.
– Collaboration with other activities working on market issues (e.g. Task 1) and (external) stakeholders
– Weave together technical information from other subtasks and investigate with respect to their implications for the (existing) market and put them into a market context
– Development of “Building blocks” which can be used by others for market design with PV
• Tentative lead (subject to availability of budget): AUS
• Duration: 2014-2018
Task 14 Extension – Cross Cutting Subtask
Market implications with High PV Penetration
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
IEA PVPS Task 14
High Penetration PV in Electricity Grids
• Contents
– Back ground
– Overview IEA PVPS Task 14
– Work plan
– Update on Progress
– Dissemination
– Status of participation
– Challenges
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
• Task 14 High Penetration Workshops
• Successful series of events since 2010 with more than 500 participants
2011.10: Task 14 Utility and
Research workshop, Beijing,
China, hosted by the IEE,
Chinese Academy of Sciences
2010.12: Task 14 WS,
Golden, CO, U.S.A. Hosted
U.S. DoE, NREL and SEPA
2012.5: Task 14 WS
workshop, Kassel, Germany,
Hosted by SMA
November 2013: PV and
the electricity grid
workshop, Sydney,
Australia, hosted by UNSW
2010.9: Joint Task 1/14
workshop European PVSEC/
WCPEC in Valencia
Oct 2012: Task 14
workshop, Tokyo, Japan,
Hosted by NEDO
2013.5: Joint WS with European
MetaPV Project, Brussels, Belgium,
supported by 3e and EPIA
2014.3: Task 14 WS, Geneva,
Switzerland, hosted by Planair,
SIG and HEPIA
Task 14 – dissemination and interaction
with key stakeholders ADDED
2013.9: Joint PVPS Task 14 & SHC
Task 46 WS at EU PVSEC ‘‘Solar
resource and forecast data for high PV
penetration electricity
2014.9 Joint Task 1 & 14 WS at EU PVSEC:
“Self-consumption business models -
Technical and economic challenges”
jrganised by IEA PVPS, EPIA
2011.5: Task 14 utility WS,
Lisbon, Portugal, Hosted by
EDP
2015.3: Joint Task14 & ISGAN Annex
6 , Wien hosted by AIT
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
Task 14 Inter-task coordination and liaisons to other IAsREVISED• IEA-SHC
– IEA SHC Task 36/46 “Solar Resource Knowledge Management”, liaison on
issues related to solar resource availability, forecasting and spatial/temporal
variability
– IEA SHC Task 53 “New Generation Solar Cooling & Heating Systems”
• IEA-ISGAN
– Annex 2 Smart Grid Case Studies
– Annex 5 Smart Grid International Research Facility Network
– Annex 6 Power T&D Systems
• IEA
– Grid Integration of Variable Renewables (GIVAR) project: “how to balance
power systems featuring large shares of VRE”
– Phase 3: Economics of Flexibility GIVAR
– Phase 4: in preparation -> market implications
• IEA-Wind
– IEA Wind Task 25 “Design and operation of power systems with large amounts
of wind power”
• IEA-PVPS
– „PV & Utilities“ within PVPS and IEA
– T14 – T15 on DSM: to be defined
– T1 – T14: to be defined
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
IEA PVPS Task 14
High Penetration PV in Electricity Grids
• Contents
– Back ground
– Overview IEA PVPS Task 14
– Work plan
– Update on Progress
– Dissemination
– Status of participation
– Challenges
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
Participants from
• Utilities, DNOs
• Industry, manufacturers,consultancies
• Applied research
• Universities
• Agencies
• List of contacts: Link
16 Countries
Industry
association
IEA PVPS Task 14:
Networks
European
commission
Candidate
countries
Broad expertise
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
IEA PVPS Task 14
High Penetration PV in Electricity Grids
• Contents
– Back ground
– Overview IEA PVPS Task 14
– Work plan
– Update on Progress
– Dissemination
– Status of participation
– Challenges
IEA INTERNATIONAL ENERGY AGENCY
PHOTOVOLTAIC POWER SYSTEMS PROGRAMME
New innovative models
• With current electricity market models
and mechanisms variable renewables
fundamentally influence spot market
prices and “undermine” business
models of conventional power plants:
• The wholesale markets and the power
system operation and asset planning/
investment are not adapted to the impacts.
• The essential trend is the shift of values in power industry, from
energy to balancing capability (flexibility).
• Now it is crucially important to envision the future power
system/industry evolution including centralized/distributed
operation models and business models.
Impact of High Penetration of PV Revised
IEA INTERNATIONAL ENERGY AGENCY
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[Energy mix and Asset planning]
Additional electrification
Mix of renewable energy
Location of RE deployment
[Operation]
Traditional and innovative balancing technologies in various time ranges
• Centralized generation operation
• RE control/curtailment
• Demand activation
• Interconnector/Transmission/distribution system
• Optimized operation including generation forecast
• Generation forecast and optimized system operation
Redesign of whole sale/retail market of electricity
[Business]
Business models of each level/area
Ongoing challenges
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Thank you for your attention