Marie Petitet

Research Lead

  • Primary Program Utilities and Renewables
  • Research Interests Electricity Markets, Energy Transition, Energy and Climate Policy, Renewables, Reliability and Resiliency of Power Systems, Power Systems Modeling

Biography

Marie joined KAPSARC in 2021 as a research lead in the Utilities and Renewables program. Her current research focuses on power system modeling, market designs for energy transitions and framework analysis for reliable and resilient power systems.

Prior to joining KAPSARC, Marie worked as a research engineer within the Research and Development unit of the utility group EDF in Paris, France. During her EDF journey, she worked on long-term and short-term electricity market design, European transmission grids, and smart charging opportunities for electric vehicles. Marie also worked as a researcher within the market department of the French transmission system operator, RTE.

Marie holds a Ph.D. in Economics from Dauphine University, PSL (France), an M.Sc. in Environmental and Energy Economics from École des Ponts ParisTech (France), and an M.Sc. in Engineering from ENSTA Institut Polytechnique de Paris (France).

Publications

See all Marie’s publications
  • Discussion papers
  • Data Insights
  • Instant Insight
  • Commentary
  • KAPSARC journal article
How Firm Capacity and Forced Outage Rate Assumptions of Renewables Impact Capacity Expansion Model Results

How Firm Capacity and Forced Outage Rate Assumptions of Renewables Impact Capacity Expansion Model Results

The undergoing energy transition relies heavily on the deployment of renewables such as solar photovoltaic (PV) and wind power for the generation of electricity. These variable and intermittent resources would modify power systems’ reliability compared to the situation where electricity is generated by conventional dispatchable power plants. It is also important to accurately capture their contribution to resource adequacy in long-term expansion planning. This discussion paper assesses how varying the firm capacity (FC) and forced outage rate (FOR) assumptions of renewable energy (RE) impact capacity expansion models (CEM). Eight scenarios that vary the FC and FOR, RE share targets, and annual RE uptake were run on a power system model of Saudi Arabia. Assuming a relatively high FC and a relatively low FOR favors renewables (i.e., Optimistic-RE), while the opposite disfavors them (i.e., Pessimistic-RE). Compared with optimistic RE assumptions, the pessimistic RE assumptions result in significant increases in costs, emissions, and battery storage deployment of up to 11%, 17%, and 41%, respectively. However, no observable patterns were found for resource adequacy. Quantifying the extent to which FC and FOR of RE technologies, which are considered heavily weather-dependent, impact investments in the power sector provides valuable insights for policymakers as the world moves forward more aggressively with RE deployment to reduce emissions and combat climate change.

9th March 2023
One Year After the Texas Blackout: Lessons for Reliable and Resilient Power Systems

One Year After the Texas Blackout: Lessons for Reliable and Resilient Power Systems

In February 2021, Texas experienced an extreme cold snap causing a dramatic electricity blackout that left millions of households without electricity, resulting in over 200 fatalities and economic damages of approximately $100 billion. The Texas blackout has been used to support a variety of claims regarding renewable energy, electricity markets and climate change. We identify the blackout’s drivers and what has been learned since then. These lessons apply to power systems worldwide, including those of the Gulf Cooperation Council and the broader Middle East and North Africa region.

14th June 2022
Renewables, Reliability and Efficiency in Electricity Markets

Renewables, Reliability and Efficiency in Electricity Markets

The choice to use electricity markets to transition to an ultra-high renewable electricity sector depends on whether a high level of reliability and efficiency can be achieved. This study presents a reliability, resiliency and adaptability policy framework for a liberalized power system with a high share of renewables. This framework provides policy insights regarding electricity market reliability and the implications of remuneration mechanisms for renewables. Our analysis shows that it is necessary to reconsider adequacy assessments of liberalized power systems, to enhance the definition of the loss of load probability, and to explicitly consider the probability that the market clears. Under these conditions, electricity markets can theoretically achieve reliability and efficiency with large percentages of variable and intermittent renewable resources with zero or near-zero marginal costs, and market and technical challenges can be addressed.  

29th December 2021
Why is the EU Carbon Price at a Record €60 per Tonne?

Why is the EU Carbon Price at a Record €60 per Tonne?

Carbon prices soared above €60/tonne for the first time on August 30, 2021, with the expectation of tightened environmental legislation. These prices made a new record on the European Union Emission Trading System (EU ETS), the European Union’s carbon market. The stressed gas market and expectations of a tighter gas supply in Europe are also behind rising carbon prices. These factors spilled over into electricity prices, which also broke highs, hitting €140 per megawatt hour (MWh) in real-time trading on September 1, 2021.    

1st March 2022
Why are European Wholesale Electricity Prices Soaring?

Why are European Wholesale Electricity Prices Soaring?

Since the beginning of summer 2021, European wholesale electricity prices have been soaring to historic highs. The average day-ahead price of electricity for central European countries more than doubled between June and September, reaching 170 euros per megawatthour (e/MWh) on September 15. This data insight discusses this unprecedented increase in wholesale electricity prices and their key drivers.  

23rd November 2021
Lessons From the European Electricity Crisis

Lessons From the European Electricity Crisis

On January 23, 2023, the European Commission initiated a public consultation to reform the European Union’s electricity market (European Commission 2023) on the heels of extremely high wholesale electricity prices in Europe in the last months and days of 2022. Negative spot prices, however, were recorded in a large number of European countries on January 1, 2023, including Spain, France, Switzerland, Germany and the United Kingdom. Despite the large variety in how power systems are organized worldwide, from fully integrated monopolies to liberalized systems, all countries can learn from Europe’s experience. In Saudi Arabia and the Gulf Cooperation Council (GCC) countries, liberalization and markets are being introduced progressively, and it is an opportune time to learn from experiences abroad.

20th February 2023
Climate and Power System Reliability in the Aftermath of the Texas Blackouts

Climate and Power System Reliability in the Aftermath of the Texas Blackouts

The February 2021 blackout in Texas underscored the importance of reliable and resilient power systems. In this commentary, we discuss the roles of regulators, markets, fuel and generation supply chains, and interdependent infrastructures, and finds that they need to be reconsidered and redefined to successfully meet the future challenges of increased electrification and severe weather.

25th August 2021

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