utility power Articles
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Genetic algorithm-based simulated annealing method for solving unit commitment problem in utility system
This paper presents a new approach to solve the short-term unit commitment problem using genetic algorithm-based simulated annealing method for utility system. The objective of this paper is to find the generation scheduling such that the total operating cost can be minimised when subjected to a variety of constraints. This also means that it is desirable to find the optimal generating unit ...
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The management of technology in a South African power utility
In a changing South Africa, there is increasing competition for scarce resources for social reconstruction, economic development and environmental benefaction. It is therefore critical that resources are optimally allocated through good management practices. Technology management is seen to play a major role in this regard. This is particularly so for a capital and technology intensive industry ...
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15MWe modular power plant utility power - City and Borough of Sitka - Case Study
OWNER: City and Borough of Sitka, Alaska PRODUCT: Titan 130 Modular Power Plant APPLICATION: Standby and Peaking Power CUSTOMER VALUE: Stability in Island Mode Operation Efficient Environmentally Friendly Power The City and Borough of Sitka is located in the center of the Tongass National Forest, the largest temperate rain forest in the world. Partly because of this environment, Sitka is ...
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Neural-based Tabu Search method for solving unit commitment problem for utility system
This paper presents a new approach to solving short-term Unit Commitment Problem (UCP) using Neural-Based Tabu Search (NBTS) for utility system. The objective of this paper is to find the generation scheduling such that the total operating cost can be minimised, when subjected to a variety of constraints. This also means that it is desirable to find the optimal generating unit commitment in the ...
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21 MWE Microgrid Controller Remote Gas Processing Plant - Arc Resources, Ltd. - Case Study
OWNER ARC Resources. Ltd. LOCATION Dawson Creek, British Columbia, Canada PRODUCT Microgrid Controller CUSTOMER VALUE Grid Independence in Remote Areas ARC Resources needed a new natural gas processing plant in British Columbia, but utility power was not available in this remote area. The solution was to install a microgrid consisting of a microgrid controller and two Mars5100 gas turbine ...
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Developments in power supply for the Southern Africa Power Pool 2011
The Southern African Region has been experiencing power shortages due to increased demand with static power supply as a result of limited investment in both generation and transmission infrastructure across the region. This paper discusses how the power utilities in the region plan to cope with the power challenges and the measures that are planned for the future. Keywords: power generation, ...
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Classification and comparison of interfacing schemes for connecting fuel cells to a single-phase utility line
Based on a systematic classification of dc source to utility interfacing schemes, this paper presents six major interfacing schemes for connecting fuel cells to a single-phase utility line using high-frequency transformer isolated power converters. The operation, advantages and disadvantages are discussed for each scheme with examples and operating waveforms. Several features e.g., utility line ...
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Power quality issues and power electronics
Harmonics in the distribution network have become an area of keen interest for utilities, power consumers and academic researchers due to its potentially disruptive impact on economy. This interest has lead to the development of a large number of standards that contain the problems as well as technological solutions to meet the specifications of the standards. In this paper, we discuss the ...
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Why the IBEW supports expanding nuclear power generation in the USA
The International Brotherhood of Electrical Workers (IBEW) represents workers, many who work in the utility and power generation industries. The IBEW has been and continues to be a vocal supporter of the expansion of nuclear power generation in the USA. Five years ago, there was a general expectation that nuclear capacity would expand greatly. It did not, and in part the absence of more new ...
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Developments in power supply for the Southern Africa Power Pool 2011
Abstract: The Southern African Region has been experiencing power shortages due to increased demand with static power supply as a result of limited investment in both generation and transmission infrastructure across the region. This paper discusses how the power utilities in the region plan to cope with the power challenges and the measures that are planned for the future. Keywords: power ...
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Georgia Power to expand solar project
Thursday, the Public Service Commission of Georgia approve a plan to expand solar energy share through the utility Georgia Power. The company will have to buy solar energy from energy farm to reeach a 525MW production by 2016. Moreover, Georgia Power has many challenges to come. As two proposals of the company will have to face the Public Service Commission's vote first. Opponents of Georgia ...
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Regenerative snubber for UPS inverter
An uninterrupted power supply (UPS) is used to provide electrical power to a load during an emergency situation in which the main utility power is not available. UPS topologies are well known. The inverter plays the most important role as an element in the UPS system. Usually, pulse width modulated inverters with voltage control and waveform shaping are used in UPS. This paper proposes an ...
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Lower energy prices: Now you see them, now you don’t
When combined with efficiency, solar homes can achieve ‘net zero’ – they consume no more energy than they produce. It is likely we will see a growing number of net zero homes built as more states reach what is called ‘grid parity’ – the cost of solar energy becomes no higher than the power we buy from our utility. Industry insiders say that about a dozen states already have reached this goal.This ...
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Exploring the possibility of change in the US utilities' market orientation towards more renewable energy
This research examines the possibility of the US electric utilities' transition from closed to open systems, while taking steps towards new market orientation. By employing an inductive approach, it observes recent developments in two fronts: first, it observes that more renewable energy sources have been added to the power generation mix, and that utilities advertise their renewable energy ...
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Bankable Data and Interoperability Standards
Solar generation looks to be a promising energy sector for the future. However, prior to fully embracing solar production utility companies, independent power producers and developers are confronting several critical concerns regarding the reliability and economy of this technology that will shape the stability of widespread solar deployment. Decisions influencing investors will be based on ...
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A frequency control method for isolated photovoltaic-diesel hybrid power system without smoothing renewable power variations
In this paper, a frequency control method is introduced for photovoltaic-diesel hybrid system by using a load estimator and an energy storage system. The proposed method is compared with an energy storage based conventional control method and with a fuzzy based frequency control method. Simulation results show that the proposed method is feasible to reduce the frequency deviations of the isolated ...
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800 kW Rooftop PV System Install St. Maarten Case Study
The Westin Hotel, located in beautiful Sint Maarten has decided to install the islands largest rooftop PV system to help offset the expensive energy provided by the utility. The 900 kW system was installed by SXW Wind Power and utilizes Sollega’s FR5 ballasted hybrid racking system. The project was finish quickly and under budget. Sollega_Case Studies_Westin Hotel St 171025ER ...
By Sollega, Inc
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Off Grid Solar Power Systems Design:The Beginner’s Guide in 2018
The off-grid solar system is an array of solar power components meant to run daily operations of electrical devices in absence of electricity. A similar array of solar power is the use of grid-tie solar systems; systems that are required to run electric appliances whenever utility grid is not supplying power. The grid-tie system is connected to the utility power source and works interchangeably ...
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Kennel Club Utility Solar Power Production Management Project - Case Study
Challenge Kennel Club wanted to generate revenue from unused property. Solution Florida Power & Light approached Power Production Management to maximize unused property space and install a 354 kilowatt solar energy system with strict deadlines and unique project specifications. Benefit The solar array feeds directly into the utility grid and Kennel Club generates substantial revenue ...
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The role of government in privatisation: an economic model from Denmark
As industrialised countries go through an economic conversion from public sector industries or government managed companies to privately owned companies, leaders and decision makers are seeking new models. There are very few, if any, economic models that provide a "bridge" or transition from the public or government to the private sector, let alone that have been successful. The issue ...
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