Our Impact

Our Impact2020-12-01T10:52:05-05:00

Pillar 1: System Operator Research and Peer Learning Accomplishments

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507, 2022

Inverter-Based Resource (IBR) Research Team Stability Tools Inventory: Status and Needs

The Tools and Models workstream is focused on identifying critical gaps in the capabilities of current tools and models in use by system operators and planners, as well as identifying the potential for new tools that can adequately describe the behavior of IBR. Under the leadership of Nick Miller of HickoryLedge, this workstream developed an interactive presentation that analyzes a wide range of tools, categorized as “stability tools”, “physics tools” and “economics tools”. Explore this presentation: IBR Research Team Stability Tools Inventory: Status and Needs.

The IBR Research Team ​is currently seeking high-level feedback from experts in the field about the tools inventory presentation. Reviewers can provide their high-level feedback using the Tools and Models Deliverable Feedback Form. For more in-depth, specific feedback reviewers can submit marked-down versions of the presentation to globalpst@nrel.gov.

507, 2022

System Needs and Services for Systems with High Inverter-Based Resource (IBR) Penetration

The Pillar 1 Needs and Services workstream is focused on managing the evolution of power systems’ transition from largely synchronous to IBR-driven. Under the leadership of Tim Green of Imperial College, the team produced a document describing the evolving needs and services to maintain a reliable and stable power system: System Needs and Services for Systems with High IBR Penetration.

2006, 2022

EirGrid Achieves 75% Variable Renewable Energy Generation Trial on Ireland Power System

Windmills on green land with a small road.

EirGrid, the grid system operator for Ireland, alongside its partner SONI, the system operator for Northern Ireland, recently achieved a major decarbonization milestone by successfully operating Ireland’s electricity grid at between 70% and 75% variable renewable energy (VRE) for a total of 232 hours across an 11-month trial period. This trial demonstrates that up to three quarters of the electricity flowing on the Irish electricity grid at any point in time can now come from VRE sources.

The Ireland and Northern Ireland power system is the first in the world to reach this landmark level of renewable generation while overcoming major technical challenges associated with integrating electricity from wind farms, solar farms, and interconnectors that link it with other countries. There were several new all-island wind energy records set during the 11 months, including the current record of 4,584 megawatts on February 5th.

EirGrid had previously imposed a cap of 70% on the amount of variable renewable generation on the grid at a given time. Following this successful trial, the cap has now been raised to 75%. This trial also marks the culmination of EirGrid and SONI’s 11-year work program focused on progressively increasing the limits of VRE on the Irish grid. Work will now begin on increasing the figure to 95% by 2030 to achieve the government’s renewable energy targets.

Read EirGrid’s full press release: Electricity Grid to Run on 75% Variable Renewable Generation Following Successful Trial.

EirGrid has demonstrated its leadership in system operation by not only raising the bar for what is possible in VRE integration, but also by working with the G-PST as one of its founding system operators and helping provide coordinated support and knowledge transfer for other organizations pursuing clean energy transitions. Mark Foley, EirGrid’s Chief Executive and a prominent advocate for the G-PST, recently expressed in a piece for the Irish Times how collaborative initiatives across the power systems industry are key to successfully addressing climate change.

Read Foley’s full piece for the Irish Times: Accelerating the Energy Transition.

2405, 2022

G-PST/ESIG Webinar Series: Use of AI and Big Data in the Control Room

May 2022

The need for data driven decision tools to support the grid operator in the future is increasing. The operator needs to monitor and control an electricity system with a high degree of complexity due to an increasing amount of renewables integrated into the system. This webinar briefly covers Energinet’s strategy around the control center of the future, specific use cases empowered by machine learning and data and the effort to build digital culture and capabilities.

Featured Speaker: Jesper Abildgaard Nielsen, Senior Director of Data & Systems (Product development), Energinet


2504, 2022

G-PST/ESIG Webinar Series: Inertia Monitoring

April 2022

As shares of inverter-based resources increase, fewer synchronous generators may be online at any given time. Inertial response available from synchronous machines after a sudden large imbalance on the system is therefore diminishing. Various methods and technologies to improve and supplement inertial response exist and are gradually being deployed in power systems with high shares of inverter-based resources. Regardless of the methods being used, there is a need to improve situational awareness and accurately monitor available inertial response in real-time. A number of methods for estimating and monitoring inertia have been developed over the past few years. This webinar covers the need for inertia monitoring and methods that are currently being used or proposed around the world.

Featured Speaker: Julia Matevosyan, Chief Engineer, ESIG

104, 2022

G-PST/ESIG Webinar Series: Project EDGE / DER Marketplace Demonstration

30 March 2022

Project EDGE is an innovative, first of its kind trial demonstrating a proof-of-concept Distributed Energy Resources (DER) Marketplace to inform current and future reforms in line with Australia’s Energy Security Board Post 2025 NEM initiatives.

This collaboration between the Australian Energy Market Operator (AEMO), AusNet Services (AusNet) and Mondo (collectively, the Project Partners), with financial support from the Australian Renewable Energy Agency (ARENA) seeks to understand, test, and demonstrate a proof-of-concept DER Marketplace that enables efficient and secure coordination of aggregated DER to provide wholesale and local network support services within the constraints of the distribution network in a way that promotes the National Electricity Objective (NEO). The primary intent is to identify capabilities that can be replicated at scale across the National Electricity Market (NEM).

This presentation provides an overview of the project, learnings to date and research questions that aim to answer key questions across industry on the customer needs, alignment to the NEOs, wholesale integration capability, local network services requirements, operation within Dynamic Operating Envelopes (DOEs), how to efficiently exchange data at scale, and the roles and responsibilities of each of the actors within the DER Marketplace.


  • Nick Regan, Business Lead – Project EDGE, AEMO
  • John Theunissen, Project EDGE Lead, AusNet Services
  • Anoop Nambiar, Program Manager, Distributed Energy, AusNet Services

Watch the Recording

Pillar 2: System Operator and Technical Support Accomplishments

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2205, 2022

Power System Sharing Series #9 – Organizational Structure of the Control Center of the Future

May 2022

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.

2503, 2022

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.

Explore the full assessment below:

2901, 2022

Power System Sharing Series #8: Advanced Dispatcher Training Simulator Toward Variable Renewable Energy (VRE) Integration

January 2022

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.

Watch the Recording

212, 2021

Power System Sharing Series #7: Advanced Primary and Secondary Generation Control

December 2021

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.

Watch the Recording

410, 2021

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
Energinet, Denmark
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

210, 2021

Power System Sharing Series #6: Advanced Forecasting of Short-term Load and Variable Generation

October 2021

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.

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Pillar 3: Foundational Workforce Development Accomplishments

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