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46-60 of 189 results
AEMO Releases PLEXOS NEM Dataset
| By Energy Exemplar
The Australian Energy Market Operator ('AEMO') operates the wholesale interconnected electricity market in the eastern states, known as the National Electricity Market, or NEM. For the National Transmission Network Development Plan (NTNDP) 2012, AEMO released a copy of 2012 NTNDP Database in PLEXOS. PLEXOS was used to solve the Least-Cost Expansion Modelling requirements of their analysis.
Power Generation > Wind > White Papers
How Much Wind Energy Will be Curtailed on the 2020 Irish Power System?
| By Energy Exemplar
This paper describes a model of the 2020 Irish electricity system which was developed and solved in a mixed integer programming, unit commitment and economic dispatch tool called PLEXOS. The model includes all generators on the island of Ireland, a simplified representation of the neighbouring British system including proposed wind capacity and interconnectors between the two systems.
Power Generation > Wind > White Papers
Energy Exemplar Products and Services - Leading the Field in Energy Market Modelling
| By Energy Exemplar
PLEXOS® Integrated Energy Model (PLEXOS) is proven simulation software that uses cutting-edge mathematical programming and stochastic optimisation techniques combined with the latest data handling techniques, to provide a robust analytical framework for power market modellers. Since its first release in 2000 PLEXOS has emerged as the integrated power market simulation tool of choice, with a customer base spanning the globe and including many of the world’s largest and most sophisticated utilities and system operators.

This paper provides insights into Energy Exemplar’s products and services including, Integrated Energy Modelling, Gas Modelling, Distributed Computing Solutions, Consulting, Training, Datasets, Customisation and more.

Power Generation > Wind > White Papers
Energy Exemplar - Leading the Field in Energy Market Modelling
| By Energy Exemplar
PLEXOS® Integrated Energy Model (PLEXOS) is proven simulation software that uses cutting-edge mathematical programming and stochastic optimisation techniques combined with the latest data handling techniques, to provide a robust analytical framework for power market-modellers. PLEXOS meets the demands of market participants, planners, investors, regulators and analysts with a comprehensive range of features delivered through an easy-to-use interface and powerful simulation engine.
Power Generation > Wind > White Papers
Bridging the Power Gap in Africa: Testing Options to Manage Constrained Short to Medium Term System Operations
| By Energy Exemplar
Jarrad G. Wright PrEng MScEng Senior Consultant Energy Exemplar Africa (Pty) Ltd South Africa.
Power Generation > Wind > White Papers
Natural Gas and Power Systems/Markets Combined Modelling and Co-Optimisation in PLEXOS
| By Energy Exemplar
With the incorporation of the fully integrated Gas Modelling Classes in PLEXOS, complex layouts and mixed gas and electricity system topologies, of a large scale, can be modelled.
Power Generation > Wind > White Papers
Electrical Energy Storage to Make Wind and Solar PV Resources Disptatchable
| By Energy Exemplar
The transitioning to a lower carbon emissions path in most regions of the world has driven significant investments in alternative renewable sources of electrical energy with particular focus on solar photovoltaic (PV) and wind technologies. The typical argument against these technologies are issues related to their variability and unpredictability and management thereof. This paper attempts to show the value that electrical energy storage could add to a power system that includes a share of solar PV and wind. More specifically, the ability of energy storage to make these intermittent resources dispatchable.
Power Generation > Wind > White Papers
Renewable Generation Integration Study by PLEXOS
| By Energy Exemplar
This article first reviews the uncertainty and variability of the renewable generation; then briefly describes the approach to prepare the system for the renewable generation; third, the EIM is presented for the ramp capacity sharing between the Balancing Authority Areas (BAA) to improve the system readiness for the greater renewable generation penetration.
Power Generation > Wind > White Papers
Reliability Analysis using PLEXOS®
| By Energy Exemplar
The PLEXOS® simulator is a powerful tool for performing reliability studies on electric power systems. The simulator can calculate the standard metrics of LOLP, LOLE, EDNS and EENS from the PASA simulation phase using convolution. However, PLEXOS can also use the detailed chronological simulation of ST Schedule to produce the same metrics via Monte Carlo.
Power Generation > Wind > White Papers
Modelling and Quantifying the Benefit of Gas and Electric System Coordination
| By Energy Exemplar
The trend of the future electricity supply is going towards a direction with higher penetration of renewables. For the traditional fossil fuel fired generating resources, we will see the generation greatly shift from coal fired generating resources to gas fired, due to the apparently harsh environmental regulations put onto the coal plants. This trend makes the entire electricity supply more environmentally friendly, but it is also creating more pressure on the gas supply. While shale gas development solved the puzzle on the gas production side, gas fired generators still rely on the gas pipeline infrastructure and system awareness between gas and electric systems to ensure the gas supply whenever needed. That is especially true in an extreme event like Polar Vortex, when gas demands are extremely high in all sectors. Currently, the total gas consumption from the electric generators is around one third of the total gas consumption in the US, as shown in Fig. 1. With the electric power industry moving towards more gas fired generators, this percentage will keep going up, which means more interdependent gas and the electricity markets and therefore a strong need for studying both systems together. Words by Nan Zhang and Yuan Gao.
Power Generation > Wind > White Papers
Portfolio Optimisation by PLEXOS
| By Energy Exemplar
PLEXOS solves Portfolio Optimisation problem using the Security Constrained Unit Commitment (SCUC) and Economic Dispatch (ED) algorithm. This algorithm makes use of Mixed Integer Programming (MIP) to minimize a cost function subject to all operational constraints.
Power Generation > Wind > White Papers
Addressing the Challenges of US Electricity and Gas Sector using PLEXOS® Integrated Energy Model
| By Energy Exemplar
In the past, the US electricity markets were charactersied by vertically integrated and monopolistic electric utilities. These utility companies owned the generation, transmission and distribution networks and electric rates were reviewed and approved by public utility comissions or public boards. However, in the past couple of decades, these vertically integrated structures have been replaced by regional wholesale markets.
Power Generation > Wind > White Papers
Hydro Optimisation in PLEXOS
| By Energy Exemplar
Power systems having both hydro-electric and thermal generation require a systematic and coordinated approach in order to determine an optimal policy for dam operations. The goal of a hydro-thermal planning tool is to minimise the expected thermal costs along the simulation period. These types of problems generally require stochastic analysis to deal with inflow uncertainty. This can increase the mathematical size of the problem and can easily become cumbersome to solve.
Power Generation > Wind > White Papers
Assessing Electrical Transmission Constraints for the Southern African Power Pool (SAPP) in PLEXOS
| By Energy Exemplar
The Southern African Power Pool (SAPP) was formed in 1995 to promote trading of electricity between nations in the Southern African Development Community (SADC). Initially, the national utilities of each SADC country were included as SAPP members to co-operatively trade electricity (via bilateral contracts and a Short Term Energy market (STEM)). The STEM was replaced in 2009 with a competitive trading market (the Day Ahead Market (DAM)) and inclusion of Independent Power Producers (IPPs) and Independent Transmission Companies (ITCs) was late allowed.
Power Generation > Wind > White Papers
46-60 of 189 results