VRE Tutorial: Lessons Learned from Grid Integration of Variable Renewable Energies


Tuesday afternoon
11 October 2022
13:00 – 18:30


The on-site VRE tutorial will be held at the workshop venue, the The Hague Conference Centre in Room 2.2.

Please come to the main registration desk to collect your conference badge before going to the tutorial.


Tutorial Lecturers

Debra Lew

Nicholas Miller
HickoryLedge, USA

Julia Matevosyan

Thomas Ackermann
Energynautics, Germany


Preliminary Agenda

12:00 – 13:00


13:00 – 14:00

Lecture 1 (45 min.)
Lessons learned from Grid Integration of VRE: Activities in 20 Countries
Thomas Ackermann (Energynautics, Germany)

Thomas Ackermann will share his experiences of 25 years of world-wide work in the area of grid integration of renewables and electric vehicles. The presentation will give an overview of challenges and lessons learned.

Discussion (15 min)

14:00 – 15:00

Lecture 2 (45 min.)
Lessons Learned from Grid Integration of VRE: Resource Adequacy and System Balancing
Debra Lew (ESIG, USA)

Variable renewable energy resources create challenges for utilities to meet resource adequacy requirements because VRE may not be coincident with system peak demand and VRE output during system peak periods varies inter-annually. We discuss how methods for determining resource adequacy may need to be modified to consider high penetrations of VRE. High penetrations of VRE can contribute significant variability and uncertainty to the system operators‘ responsibility of balancing the system. In this lecture, we cover many mitigation options for system balancing and considerations that each utility must undertake to determine what makes the most sense for their system.

Discussion (15 min)

15:00 – 16:00

Lecture 3 (45 min.)
Lessons Learned from Grid Integration of VRE: Introduction to Grid Forming Inverters from the Power System Perspective
Julia Matevosyan (ESIG, USA)

In order to maintain reliability in girds with high shared of inverter-based resources (IBRs), the role of this resources needs to evolve. Some of the grid services currently (or formerly) provided by conventional synchronous power plants need to be provided by IBRs. IBRs are already required to have the capability to provide some of these grid services, but advanced controls will be needed to enable them to provide the full range of necessary grid services in a high-renewables grid. The tutorial will provide introduction to new advanced inverter controls, termed grid forming. We will discuss differences and similarities with between capabilities of and limitations of existing conventional inverters termed grid following vs grid forming inverters. System operators and planners, equipment owners, and manufacturers face a circular problem: Which comes first, the requirement for a capability or the capability itself? How do grid operators know what performance or capability is possible from new equipment, and therefore what they could conceivably require? How can they go about evaluating the costs and benefits of having such equipment on the grid? And what drives manufacturers to invest in new technology without it being mandated for interconnection to the grid or otherwise incentivized by the market? The tutorial will introduce a framework which may help to solve this circular problem as well as will talk about “early adopters”, i.e. existing grid forming projects around the world and emerging technical specifications for grid forming inverters.

Discussion (15 min)

16:00 – 16:30


16:30 – 17:30

Lecture 4 (45 min.)
Lessons Learned from Grid Integration of VRE:  Frequency Control and System Stability

Nicholas Miller (HickoryLedge, USA)

The dynamic performance of interconnected power systems, especially the transient response to grid disturbances, is substantially changed by the substitution of inverter-based variable renewable resources (IBVRE) for traditional synchronous generation. Ability to maintain frequency control following loss of major generation units or interconnectors is strongly influenced by reduced synchronous inertia and rapidly responding IBVRE. Transient stability, particularly first swing stability between importing and exporting systems can be radically altered by IBVRE. This lecture will explore lessons learned in large-scale integration studies, including opportunities to improve utilization of transmission infrastructure beyond levels possible today with predominantly synchronous generation.

Discussion (15 min)

17:30 – 18:30

Lecture 5 (45 min.) – tbc


Discussion (15 min)




  • The VRE Tutorial in not included in the general participation fee of the 21st Wind & Solar Integration Workshop.
  • As the number of participants for the VRE Tutorial is limited, tickets are available on a first come, first served basis.
  • The Tutorial can be canceled if less than 7 participants register.
  • The following table shows both the gross prices (incl. 21% Dutch V.A.T. | marked in bold) as well as the net prices (excl. V.A.T.).




Early Bird

04 Aug 2022 (extended)

435.00 €
359.59 €

300.00 €

Mid Registration

08 Sep 2022

485.00 €
400.83 €

350.00 €

Late Registration

06 Oct 2022

555.00 €
458.68 €

400.00 €

On-site Registration

06 Oct 2022

600.00 €
495.87 €


330.30 €
272.73 €

220.00 €


About our Tutorials

In our tutorials, you have the opportunity to deepen your knowledge regarding crucial renewables topics in an intimate setting.

In intense presentations by specially invited experts you gain not only detailed knowledge but also a unique hands-on-experience.

Our tutorials have an introductory to intermediate level