Pillar 1: System Operator Research and Peer Learning Accomplishments
G-PST/ESIG Webinar Series: Update on Changing Role of Resources and Growth of Utility Scale Storage
September 27, 2022
Featured Speaker: Robert Kott, Operations Policy Manager, California Independent System Operator
This presentation provides an update on the current state of supply resources for the California Independent System Operator (CAISO) balancing authority area (BAA) and the expected future state of the resource mix as CAISO continues an energy transition toward 60 percent renewable and 100 percent zero carbon resources. This includes a description of an effective resource adequacy program, a review of the resource mix with respective contributions to serving a varying load profile, a summary of the future changes to the resource mix based on the interconnection queue and an overview of the drivers behind the energy transition. The resource mix discussion examines the rapidly increasing role of battery storage resources and the challenges these resources are presenting to operations. Examples of peak operating periods showed how resources perform to meet load and renewable resource variability.
G-PST/ESIG Webinar Series: Operating the System Towards Zero Carbon
30 August 2022
National Grid Electricity System Operator (ESO) plays a very important role of ensuring that Great Britain has the essential energy it needs by making sure supply meets demand every second of every day. The flow of electricity is getting more complex in the GB system with key features of more renewable energy and interconnectors; a growing number of ways to source electricity as well as more participants in “demand side response”. National Grid ESO is working hand in hand with the energy industry and continually finding ways to innovate, invest and adapt the electricity system to keep electricity flowing reliably to homes and businesses across Great Britain. As an active member of the G-PST Consortium, National Grid ESO will use this webinar to share a series of good practices featuring five speakers who will cover the following topics below in support of the UK’s Net-zero energy transition:
GB Grid Forming Grid Code Development (Antony Johnson)
GB Grid Forming Best Practice Guide Development (Dechao Kong)
Stability Constraint Management – Stability Pathfinder Program (Shurooque Baloch)
System Strength Management – Innovation Project of Strength To Connect (Xiaoyao Zhou)
Inertia Measurement (Anna Blackwell)
Antony Johnson, Engineer and IET Member, National Grid ESO
Dr. Dechao Kong, Engineer, National Grid ESO
Shurooque Baloch, Engineer, National Grid ESO
Dr. Xiaoyao Zhou, Engineer, National Grid ESO
Anna Blackwell, Product Manager (Inertia & Frequency), National Grid ESO
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G-PST/ESIG Webinar Series: Wind and Solar Power Forecast Management
12 July 2022
As of May 31, 2022, ERCOT has integrated about 35,755 MW of wind and 11,669 MW of solar capacity on its grid. ERCOT currently receives both hourly and intra-hour 5-minute wind and solar forecasts from three different vendors and has built tools and processes to integrate these various forecasts into ERCOT’s Real Time operations and forward-looking studies. Since about 2018, ERCOT has had a “pay-for-performance” payment structure with its wind forecast vendors that incentivizes improvements in forecast performance during hours that are critical to Real-Time operations. ERCOT has been continuously improving the design of its Ancillary Services (aka “operational reserves”) program including creating new analysis tools to better manage the challenges brought by uncertainty and variability of its wind and solar fleet. This webinar will provide a holistic review of ERCOT’s wind and solar power forecast management strategies including tools, procedures, and approaches that have been instituted or are in the process of being implemented within the next 12-18 months.
Nitika Mago, Manager, Electric Grid Operations, ERCOT
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G-PST/ESIG Webinar Series: Impedance Scan Tools for Stability Analysis of IBR Grids
30 June 2022
Dynamic stability is a major concern in operating power systems with high levels of inverter-based resources (IBRs). Dynamic stability problems in IBR grids manifest as oscillations or control interactions that are observed either locally between a few IBRs or span a wider network involving tens to hundreds of IBRs. It is quite challenging to evaluate the stability of IBR grids because of fast, complex, and non-standardized controls of IBRs as well as unavailability of their open-box models from vendors. This webinar will review impedance-based methods for stability analysis of IBR grids. It will also present a PSCAD-based impedance scan software tool and an impedance measurement system developed at NREL for analyzing the stability of IBR grids. Case studies to demonstrate the capabilities of these tools to answer questions such as “which IBRs are causing oscillations?” or “how much grid-forming capacity is needed in a system?” will be presented.
Shahil Shah, Senior Engineer, NREL
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G-PST/ESIG Webinar Series: Fostering the Use of AI for Power System Transformation
21 June 2022
What is the current state of AI, and how can it be employed for power system transformation? In this panel discussion, researchers in AI and power systems will reflect on the readiness of AI to contribute to the areas of innovation identified in the inaugural G-PST research agenda. They will then identify opportunities for ongoing research and deployment within both the AI and power systems communities. This session will build on the discussion from our March webinar entitled “Open Discussion with Global Power System Operators: The AI Opportunity,” in which global power system operators shared the opportunities and challenges they are facing in decarbonizing electric grids, as well as their initial perspectives on how AI could help. (Participation in the prior webinar is not required to attend this session.) This event is organized in collaboration between G-PST, ESIG, Climate Change AI (CCAI), and the Electric Power Research Institute (EPRI) as part of EPRI’s Artificial Intelligence Grand Challenges initiative.
Baosen Zhang, Associate Professor, University of Washington
Ferdinando Fioretto, Assistant Professor, Syracuse University
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Pillar 1 Welcomes Contributions to Newly Released Research Repository
Pillar 1 has developed an extensive Research Repository, which details current and recent research projects from around the world that are well-aligned with the Inaugural Research Agenda. The Repository is a working document, and more contributions are welcomed.
Pillar 2: System Operator and Technical Support Accomplishments
Power System Sharing Series #9 – Organizational Structure of the Control Center of the Future
The ninth installment of the Power System Sharing Series was focused on the organizational structure of advanced control centers. This webinar was delivered for PLN Indonesia staff and stakeholders. Speakers include experts from the Australian Energy Market Operator (AEMO) and California ISO. More information can be found on the Power System Sharing Series web page.
Control Center of the Future Assessment Developed for Peruvian System Operator
Peru’s system operator, Comité de Operación Económica del Sistema Interconectado Nacional (COES), is embarking on a shift to higher wind and solar energy penetrations in its power system. The organization expressed interest in possible recommended investment priorities to adapt to more variable generation, as well as shifting energy demand profiles through electrification and increased growth rates. Under the G-PST’s System Operator Technical Support Pillar (Pillar 2), core team organizations the Electric Power Research Institute (EPRI) and NREL developed an in-depth assessment of the optimal approaches for control center improvement that COES might consider to meet the demands of the future power system.
The vision for the control center of the future outlined in this assessment is aimed to position COES at the forefront of innovation in control center and operational capability. It is an ambitious plan that aims to ground the development of operational technology and the control center in the context of rapidly increasing generation, demand, and network growth in the coming decade. The road map is structured in five key areas: architecture, data, control center tools, human factors, and buildings and hardware, with eleven key pillars of innovation within each area. Part of the framework included developing a potential pathway to 2030 and beyond, while recognizing the uncertainty in projected growth forecasts. The roadmap is not intended to be an implementation plan or course of action for COES to follow necessarily, but rather is an indicative and visionary way of considering the best approaches for achieving their operational goals.
Power System Sharing Series #8: Advanced Dispatcher Training Simulator Toward Variable Renewable Energy (VRE) Integration
The eighth installment of the Power System Sharing Series, focused on dispatcher training. This webinar was delivered for PLN Indonesia staff and stakeholders. Speakers include experts from the National Renewable Energy Laboratory and Eirgrid. More information on the Power System Sharing Series web page.
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Power System Sharing Series #7: Advanced Primary and Secondary Generation Control
The seventh installment of the Power System Sharing Series, focused on advanced primary and secondary generation control. This webinar was delivered for PLN Indonesia staff and stakeholders. Speakers include experts from HECO and DTU. More information on the Power System Sharing Series web page.
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G-PST Hosts System Operator Leadership Forum
To support the visionary goal of the G-PST Consortium to reduce power sector emissions by 50% globally by 2030, there is a need to build confidence within system operators at the highest level that reaching high variable renewable energy (VRE) penetration, while ensuring system reliability, is possible. To develop this confidence among system operators initiating the energy transition, the G-PST Consortium hosted a virtual joint forum on October 4th, 2021 between the leadership of emerging economy system operators and those from the G-PST’s founding system operators (FSOs). These FSOs represent grid systems that are at the cutting-edge of the energy transition and regularly manage reliability under high VRE penetration.
This forum provided a space for the FSOs to share their journeys, including key challenges, solutions, and good practices, as they have moved to high VRE penetration. It was also facilitated by Rebecca Collyer of the European Climate Fund to encourage open dialogue in a small group setting to encourage honest and frank sharing of challenges, as well as knowledge and solutions, to build confidence at the highest levels within system operators globally, while also setting the stage for future peer learning and technical discussions between staff within the system operators.
Attendees included leadership teams and technical designees from the following system operation groups:
Australian Energy Market Operator (AEMO), Australia
California Independent System Operator (CAISO), U.S.
Comité de Operación Económica del Sistema Interconectado Nacional (COES), Peru
EirGrid Group, Ireland
Electric Reliability Council of Texas (ERCOT), U.S.
Eskom, South Africa
Kazakhstan Electricity Grid Operating Company (KEGOC), Kazakhstan
National Grid ESO, U.K.
National Grid Corporation of the Philippines (NGCP), Philippines
National Load Dispatch Center (NLDC), Vietnam
National Transmission and Despatch Company (NTDC), Pakistan
Office National de l’Electricité et de l’Eau Potable (ONEE), Morocco
Perusahaan Listrik Negara (PLN), Indonesia
Power System Operator Corporation (POSOCO), India
West African Power Pool (WAPP)
XM Compañía Expertos en Mercados (XM), Colombia
Power System Sharing Series #6: Advanced Forecasting of Short-term Load and Variable Generation
The sixth installment of the Power System Sharing Series, focused on forecasting. This webinar was delivered for PLN Indonesia staff and stakeholders. Speakers include experts from EPRI and AEMO. More information on the Power System Sharing Series web page.