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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

    (Q u e lle

    : E

    P IA

    -G lo

    b a l M

    a rk

    e t O

    u tl o o k 2

    0 1 3 )

    ,

    2 0 1 2 f ig

    u re

    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 Europe P

    V p

    o w

    e r

    [G W

    ] 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 curtailment Of 2.09GW

    Pump-up

    Hydro

    Geothermal

    Pumping & Export of 2.32GW Demand (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

    • Achievements o 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

    • Deliverable o 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

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