Quantifying the value of transmission flexibility: the HVDC link upgrade in New Zealand
Introduction Transmission infrastructure plays a central role in enabling modern power systems to operate efficiently under increasing uncertainty. In hydro-dominated systems with geographically concentrated resources, transmission capacity is particularly valuable because it allows energy to move between regions with different supply and demand characteristics. New Zealand is a clear example of this dynamic. The country’s […]
Why renewable uncertainty matters: evidence from brazil’s operation planning
Introduction Many power systems around the world are being reshaped by the energy transition. Wind and solar are scaling faster than any other technologies in modern electricity history, changing not only the generation mix but also the nature of system operation. As non-dispatchable resources take a larger share of supply, variability becomes a structural feature […]
Economic impact assessment of hydraulic operating constraints in brazilian hydropower plants
Context The Brazilian power matrix is predominantly composed of hydroelectric plants, which are responsible for most of the country’s electricity generation. The National Electric System Operator (ONS) coordinates and controls the operation of the National Interconnected System (SIN). To ensure safe and economic operation, it is essential to consider the operational limitations of these plants, […]
Optimal sizing and assessment of battery energy storage systems
The increasing integration of variable renewable energy sources introduces new operational challenges for power systems, particularly in terms of flexibility, reliability, and economic efficiency. In this context, battery energy storage systems (BESS) are becoming a promising technology, as they can contribute to meeting these requirements by providing services such as energy arbitrage, operating reserve, and […]
Energy storage for flexibility and reliability in interconnected and isolated systems
The Role of Storage in Energy Transition The Brazilian power sector is undergoing a profound transformation driven by the rapid expansion of variable renewable energy (VRE) and ambitious decarbonization targets. Although the country’s electricity matrix has historically been dominated by hydropower, the accelerated integration of wind and solar has introduced significant operational challenges to the […]
PSR User Meeting 2026: Where the next questions in energy analytics take shape
For more than two decades, PSR’s User Meeting has served as a forum for technical exchange among professionals engaged in energy planning, system operation, and analytical model development. Over time, however, its role has become broader than that of a conventional user event. As the sector has grown more complex, the meeting has increasingly become […]
PSR and academic research
PSR is a leading contributor to the global academic and research landscape, engaging with top institutions and sharing our expertise through presentations, publications, and collaborative projects. Our commitment to innovation is reflected in our active participation in key industry and academic forums. Recently, PSR contributions were recognized through the prestigious Leadership In Power Award from […]
A new framework to assess reliability, flexibility, and resilience of power systems
Indicators are essential tools for assessing the operation of an electric power system. They provide a clear and objective view of system operation, allowing operators and planners to ensure that system functions meet pre-established safety, reliability, and quality parameters. These indicators help identify inefficiencies, operational bottlenecks, and recurring failures—such as overloads, excessive losses, or curtailments […]
Grid-Enhancing Technologies: A Case Study in Colombia
Overview of Grid-Enhancing Technologies The global energy landscape is undergoing a profound transformation, largely driven by the imperative to decarbonize and integrate a growing share of renewable energy sources such as wind and solar power. However, these changes introduce significant challenges, particularly concerning the flexibility and robustness of transmission networks to accommodate the intermittent nature […]
Unlocking USD 10 billion investments in Central Asia: Powering the World’s Largest Dam with OPTGEN-SDDP
The Central Asian power sector is undergoing a structural realignment. Against a backdrop of rising electricity demand, legacy infrastructure, and an urgent need to expand renewable generation, two World Bank-backed hydropower projects — Rogun Dam in Tajikistan and Kambarata-1 in Kyrgyzstan — stand out both in scale and systemic implications. Together, they involve over USD […]
