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16-30 of 189 results
PLEXOS Study of the Italian Power System and Market in the Medium-Term: Realities and Expectations of Renewables Integration
| By Energy Exemplar
One of the main developments of the last few years on the Italian power market has been the significant increase of renewable capacity in the form of wind and solar power plants. Using a PLEXOS dataset based on data available from Terna and various utilities, we have modeled the Italian power market considering the six geographical zones and created the medium term expected scenarios from the Terna information available for 2012 and the published 2013 grid development plan.
Power Generation > Wind > White Papers
Adjustable Speed Pumped-Storage Hydro-Generator (PSH) Evaluation by PLEXOS
| By Energy Exemplar
Energy Exemplar is engaged in this project sponsored by the Department of Energy through Argonne National Laboratory to perform the power system operation simulation to evaluate the fixed-speed pumped-storage hydro-generators (FS PSH) and the adjustable-speed pumped-storage hydro-generators (AS PSH) in the areas of: quantifying the value of the FS and AS PSHs under different market conditions and for different levels of variable renewable generation (wind and solar) in the system; and providing information about the full range of benefits and value of PSH and CH plants and recommendations for appropriate business models for future PSH projects.
Power Generation > Wind > White Papers
North of Delta Off-Stream Storage (NODOS) Project Benefits Study
| By Energy Exemplar
The economic viability study of the proposed North-of-Delta Off-Stream storage (NODOS) pump storage project was originally completed by the United States Bureau of Reclamation (USBR) and the California Department of Water Resources (CDWR) in early 2013. This document summarizes an update to that study performed for USBR, by Energy Exemplar (EE) and Pinnacle Consulting (Pinnacle), consulting firms specializing in the evaluation of power generation assets in California and in the Western Electricity Coordinating Council (WECC) system, which includes the provinces of Alberta and British Columbia, the northern portion of Baja California, Mexico, and all or portions of 14 Western states in the United States including California.
Power Generation > Wind > White Papers
PLEXOS Integrated Energy Model Brochure
| By Energy Exemplar
PLEXOS® Integrated Energy Model (PLEXOS Desktop Edition) is a proven power market simulation software that uses cutting-edge mathematical programming and stochastic optimisation techniques, combined with the latest user-interface and data handling approaches to provide the most comprehensive, easy-to-use and robust analytical framework for power market modellers.
Power Generation > Wind > White Papers
Evaluation of the Impact of Including Start Costs in SEM 2020 Wind-Integration Scenarios
| By Energy Exemplar
Base load thermal unit start costs include energy (fuel and CO2) and non-energy (wear and tear, extra O&M) components. Most wind integration studies have ignored non-energy components. This research examines the effect of including non-energy start costs on scheduling.
Power Generation > Wind > White Papers
Irish and British Historical Electricity Prices and Implications for the Future
| By Energy Exemplar
This paper compares retail and wholesale electricity prices in SEM, the market of Ireland, and BETTA in Great Britain. Estimated wholesale costs are much lower in BETTA. We show that this is mostly because the wholesale price in BETTA is set too low to cover generation costs, although it is compensated by large retail margins. The substantial need for new investment in generation in Great Britain suggests that returns to generators will have to increase. Developing a market mechanism to compensate generators fairly while simultaneously reducing retail revenue will help in achieving this goal.
Power Generation > Wind > White Papers
A Methodology to Analyse the Impact of Offshore Wind Forecasting Error on Electricity Markets
| By Energy Exemplar
This paper presents a methodology to investigate the impacts of better offshore wind forecasting on the operation and management of the single wholesale electricity market in the Republic of Ireland and Northern Ireland using PLEXOS for Power Systems.
Power Generation > Wind > White Papers
An Assessment of the Impact of Irish Electric Vehicles Target on 2020 Wholesale Electricity Prices
| By Energy Exemplar
The Irish Government has set a target that 10% of all vehicles in its transport fleet are to be powered by electricity by 2020 as part of its strategy to deliver the 10% RES-T target. This paper investigates what impacts on the power system and electricity market in Ireland the electrification of 10% of the transport fleet will have.

By Mari Tamm.

Power Generation > Wind > White Papers
Reduced Network Modeling of WECC as a Market Design Prototype
| By Energy Exemplar
California’s administration, legislature, and energy regulators have adopted aggressive targets for renewable energy, which will result in profound changes in markets and system operations as the resource portfolio shifts from heavy reliance on natural gas as a fuel for electric generation to intermittent, often remote resources. As part of determining workable modeling approaches as changes in market design are considered, this paper examines the necessary level of detail for modeling unit commitment.
Power Generation > Wind > White Papers
Recognition of Extended Dispatch Horizons in California’s Energy Markets
| By Energy Exemplar
Effective in 2009, the California ISO launched a new market structure that combines advanced unit commitment and dispatch processes with recognition of physical characteristics of the transmission system and generation resources. California’s upcoming implementation of aggressive targets for renewable energy will result in new, profound changes in markets and system operations. The CAISO is responding by making additional improvements in its unit commitment processes.
Power Generation > Wind > White Papers
Power System Optimization by Increased Flexibility
| By Energy Exemplar
Great amounts of renewable energy are installed into power systems at state, regional and national level, often due to fulfill legislated mandates or renewable portfolio standards (RPS). While renewable energy is a means for reducing reliance on fossil fuels and decreasing greenhouse gas emissions, it is increasingly evident that there is need for flexible thermal fleet to help balance the renewables. The primary fuel considered for new builds is natural gas, and the default technology to meet capacity and flexibility needs is gas turbines in simple or combined cycle. In this work we show the substantial system benefits of increased flexibility and improved dynamic dispatch capability. This is achieved by exchanging traditional gas turbine based plants in the planning process to gas-fired combustion engine plants.
Power Generation > Wind > White Papers
Forcasting the Long-Term Emissions Intensity Factor for Electricity Markets: An Australian Case Study
| By Energy Exemplar
Improvements in emissions intensity via technological innovation will enable the pathway to reductions in greenhouse gas emissions, which in turn will enhance our chances of avoiding significant changes in the environment. To avoid massive structural changes to our economy and societal dislocation due to a significantly more variable and an even hostile climate, a methodological framework for establishing the true emissions intensity of electricity production is required.
Power Generation > Wind > White Papers
Modeling and Simulation of Advanced Pumped-Storage Hydropower Technologies and their Contributions to the Power System
| By Energy Exemplar
With the larger penetration of variable renewable energy resources, the role of energy storage in the power system is becoming increasingly important. The flexibility of operation of hydro and pumped-storage power plants and the variety of ancillary services that they provide to the grid enable better utilization of variable renewable resources and more efficient and reliable operation of the entire power system. The US Department of Energy’s Water Power Program has funded a recent study to enhance the modeling and simulation of advanced pumped-storage hydropower (PSH) technologies and examine the value of different services and contributions that they can provide to the power system.
Power Generation > Wind > White Papers
Incorporating Flexibility in Utility Resource Planning
| By Energy Exemplar
The trend of increasingly variable net load is characteristic of all power systems with increasing penetration of wind and solar energy. As the amount of renewable energy increases, decreasing minimum net loads and increasing net load ramps require more frequent starts and stops, ramps and cycling, all of which impose costs and stress on the dispatchable generation fleet. Operational flexibility is needed to cope with varying net load.
Power Generation > Wind > White Papers
Feasibility of Small Modular Nuclear Reactors for Ireland
| By Energy Exemplar
Electricity generation in Ireland contributes to almost a quarter of Ireland's overall greenhouse gas emissions and at the moment Ireland is the most import dependent country in Europe. In future markets Ireland's electricity generation will consist of a large supply coming from renewable sources. However, these sources are variable and still require a base load supply from a power plant to meet demand for the entire year.
Power Generation > Wind > White Papers
16-30 of 189 results