Joseph DeCarolis’ Post

Every country needs its own energy system modeling, like Project BlueSky. Too often, policies stem from popular discussions rather than grounded, data-driven insights. How can we genuinely forecast energy needs without robust energy system models? Whether for large or small nations, R&D in energy modeling is crucial. We spoke a lot about this, Thines Sreedaran and Vincent Woon Kok Sin. Malaysia's National Energy Transition Roadmap (NETR) has ambitious targets for 2050, including renewables, efficiency, green mobility, hydrogen, bioenergy, and carbon capture. But are these goals rooted in engineered models, or are we following trends? Exploring diverse energy technologies beyond the mainstream could open new possibilities. Let's support true innovation for a resilient future! 🌍🔋💡 #EnergyTransition #SustainableFuture #EnergyPolicy #SystemModeling #MalaysiaNETR #RenewableEnergy #EnergyEfficiency #GreenMobility #HydrogenEconomy #Innovation #FutureEnergy #MalaysiaMadani

📃Scientific paper: Coordinated Expansion Planning of Transmission and Distribution Systems Integrated with Smart Grid Technologies Abstract: Integration of smart grid technologies in distribution systems, particularly behind-the-meter initiatives, has a direct impact on transmission network planning. This paper develops a coordinated expansion planning of transmission and active distribution systems via a stochastic multistage mathematical programming model. In the transmission level, in addition to lines, sitting and sizing of utility-scale battery energy storage systems and wind power plants under renewable portfolio standard policy are planned. Switchable feeders and distributed generations are decision variables in the distribution level while the impact of demand response programs as a sort of behind-the-meter technologies is accommodated as well. Expansion of electric vehicle taxi charging stations is included as a feasible option in both transmission and distribution levels. In order to deal with short-term uncertainty of load demand, renewable energy sources output power, and the charging pattern of electric vehicle taxis in each station, a chronological time-period clustering algorithm along with Monte Carlo simulation is utilized. The proposed model is tackled by means of Benders Dual Decomposition (BDD) method. The IEEE RTS test system (as the transmission system) along with four IEEE 33-node test feeders (as distribution test systems) are examined to validate effectiveness of the proposed model. Continued on ES/IODE ➡️ https://etcse.fr/X0YcT ------- If you find this interesting, feel free to follow, comment and share. We need your help to enhance our visibility, so that our platform continues to serve you.

Sandia National Laboratories developed software with tools to isolate downed or damaged lines, automate energy production and consumption regulation, and troubleshoot unintentional loops. https://lnkd.in/eX4STcHm #ConnectingGreenTalent #Renewables #CleanEnergy

I’m happy to share that I’ve obtained a new certification: PLEXOS Power Core Certified from Energy Exemplar! Learning about energy modeling and analysis is an awesome experience. The more I delve into it, the more I realize how much there is to learn. So excited to apply what I'm learning to achieving meaningful outcomes in the energy sector. #PLEXOS #Energy #Energymodeling #Energyanalysis

Energi U's "How the Energy Transition Really Works" course is your opportunity to gain a deep understanding of the energy transition. Our course features insights from multiple experts in the field, providing you with a well-rounded perspective on the trends, technologies, and policies defining the energy sector. Not only will you gain invaluable knowledge to navigate the energy transition, but you'll also earn 5 hours of professional development credit to enhance your career. The presale ends soon, so act now to secure your $20 discount! https://lnkd.in/dJXuiphQ . Hear from the experts and power your understanding of the energy transition. #ExpertInsights #EnergyTransition #ProfessionalDevelopment

EDIBON's Computer Controlled Geothermal (low enthalpy) Energy Unit, "EG5C", consists of a cooling circuit, a small tank with pipes covered with water (bath) and a chilling unit (heat pump). Email Spectro STEM Solutions (NZ) at [email protected] or call us on 033 655 440 for more details. The cooling circuit consists of a compressor, an air condenser/evaporator, and two water condensers/evaporators. The reason is that the unit has a 4-way valve that can detect if it is summer or winter by the environmental conditions. According to this, it sends the refrigerant gas to one or another exchanger. So they can work as evaporators or condensers of the refrigerant liquid. The ground is simulated using a small tank that covers some pipes and a heat pump. The water of the tank is at a constant temperature, the same temperature that the earth has at 20 m of depth (15ºC [59ºF] approximately). This water goes to a bath, heating or cooling the water that flows through the pipes immersed in the bath. Finally, there is a tank to store the water heated by the unit. It simulates the sanitary hot water of a house. The unit has a cycle inversion valve, which can simulate winter and summer conditions, as it was mentioned before. Since the temperature of the earth at 20 m of depth is always 15ºC, this temperature will be higher than the environmental temperature in winter, therefore, the ground is used to heat (heating mode use). However, the environmental temperature in summer will be higher than 15ºC,so the ground’s water will be used to cool (refrigerating mode). This Computer Controlled Unit is supplied with the EDIBON Computer Control System (SCADA), and includes The unit itself + a Control Interface Box + a Data Acquisition Board + Computer Control, Data Acquisition and Data Management Software Packages, for controlling the process and all parameters involved in the process.

Interoperability of the energy grid is key as we transition to more diverse, greener energy sources. @LF Energy has just published an excellent in-depth look at how open source software is helping overcome many of these challenges. Read it here: https://hubs.la/Q02PmW9Z0 #OSS #OpenSource #Energy #ClimateChange

I am thrilled to share that I have successfully completed my PhD with the dissertation titled "Consensus-Based Wide Area Cooperative Protection in Transmission Grid" as of September 8, 2024. This journey has been an incredibly rewarding experience, and I’m excited to take this knowledge forward into the field of power engineering. Along the way, I had the privilege of publishing three papers in the IET Generation, Transmission & Distribution journal, focused on innovative protection strategies for transmission grids: "Dynamic Wide-Area Cooperative Protection: A New Approach" "A New Virtual Consensus-Based Wide Area Differential Protection" "Enhancing distance protection in transmission grids with high penetration of renewable energy sources through cooperative protection", which was just published today! This latest article tackles the growing challenges posed by renewable energy sources (RES) and inverter-based resources (IBRs) in transmission grids. It introduces a global consensus algorithm for cooperative protection, with simulations carried out using #MATLAB and #DIgSILENT #PowerFactory. I would like to express my heartfelt thanks to my doctoral supervisor, Professor Seyed Abbas Taher, for their invaluable guidance and support throughout this journey. Looking forward to what lies ahead and excited to continue contributing to the evolving power industry! #PowerEngineering #RenewableEnergy #CooperativeProtection #SmartGrid #MATLAB #DIgSILENT #ProtectionRelay https://lnkd.in/dauZH4rA

Dynamic Boundaries is a concept that allows microgrids to change their configuration to optimize the use of renewable energy sources. This is done by reducing curtailment and maximizing the load served, while also minimizing phase loading imbalances. Such imbalances can sometimes cause commercial grid-forming sources to trip offline, compromising the microgrid's resilience. This paper introduces optimal dispatch strategies for controllable switches and Distributed Energy Resources (DERs) within the microgrid. The objective is to regulate negative sequence voltage and enhance the utilization of renewable energy, thereby improving both the stability and efficiency of the microgrid. Thanks Yu Su, Fred Wang Mohammed Olama Dingrui Li Ben Ollis and Yilu Liu and all other co-authors at UTK and ORNL for this good work! The dynamic boundaries code is based on Python and uses open source solvers. The code as well as the codes developed on the SETO sponsored project on Solar Based Community Microgrids in Adjuntas, Puerto Rico, will be made available soon to the public. https://lnkd.in/ena8fWbw https://lnkd.in/eXumK4Rn

ESIG (Energy Systems Integration Group) published last week the report titled "Diagnosis and Mitigation of Observed Oscillations in IBR-Dominant Power Systems" - August 2024 While oscillations in power systems have always been of concern, the increasing use of inverter-based resources (IBRs) has led to oscillations with a wider range of characteristics and root causes. These raise new issues and risks for power system operation and planning, as oscillations can lead to unwanted equipment disconnections, supply interruptions, equipment damage, and other violations of reliability criteria. This practical guide is a starting point for people who encounter oscillatory behavior, a sort of field guide or diagnostician’s assistant. Even as the industry has a growing wealth of knowledge about every facet of systems with increasing shares of IBRs, concise guidance on the practical aspects of dealing with power system oscillations is scarce. At the same time, there is a great deal of practical knowledge among industry experts immersed in the minutiae of power system dynamics that can greatly benefit the engineering staff charged with identifying the causality of oscillations, but this practical knowledge is currently under-documented. This guide aims to change that, drawing extensively from both the vast literature and the knowledge and experience of the diverse group of industry experts in the ESIG (Energy Systems Integration Group) Stability Task Force. The guide begins with the technical background necessary as a foundation for forensics. Then it presents an overall diagnostic process including a high-level flow chart and supporting sections on measurements and analytical tools. A causality screening matrix distills the correlation between observed behaviors and possible causes into an extremely compact diagnostic aid. The diagnostician will emerge from the initial diagnostic assessment with a candidate causality, and then proceeds to more detailed diagnosis. The balance of the guide provides detailed guidance for assessment and countermeasures for specific oscillatory phenomena. Osama Fawzy Georgy HENEIN, MBA