electricity grid Articles
-
Googlifying the electric grid
If you showed Alexander Graham Bell cell phone towers, he’d be stumped. But if you let Thomas Edison tinker with our electricity grid, he’d know just what to do — not because of his genius, but because electric transmission has changed little since Edison’s day. Telephone technology advanced; electricity did not. So says the Department of Energy. http://www.oe.energy.gov/1165.htmThus, we are now ...
-
White Paper: MicroGrids Contribution to the Smart Grid
It is now becoming clear that the fundamental architecture of today’s electricity grid, based on the idea of a top down radial transmission system with unidirectional energy flows from large centralized power plants, is not the most appropriate to meet the needs of the low carbon economy. Micro-generation and micro-grids need to be incorporated into the electrical supply system because ...
-
Modelling interdependent infrastructures using interacting dynamical models
We investigate the consequence of failures, occurring on the electrical grid, on a telecommunication network. We have focused on the Italian electrical transmission network and the backbone of the internet network for research (GARR). Electrical network has been simulated using the DC power flow method; data traffic on GARR by a model of the TCP/IP basic features. The status of GARR nodes has ...
-
Community-coupled microgrids for the implementation of a smart grid in Tunisia
Smart grids are based on the use of ICT in order to optimise the quality and the cost of electricity generation, transport and distribution. Developing countries try to upgrade their electric grids to meet the evolving needs of the end consumers and face the energy challenge. The study of smart grid instauration in such countries must consider the disparity in terms of ICT infrastructures across ...
-
Full Stream Ahead!
A REMARKABLE, MADE IN NEW BRUNSWICK, INVENTION PROVIDES HYDROPOWER IN SOME OF THE PLANET’S REMOTEST LOCATIONS, “FROM A SCHOOL IN FIJI TO AN OFF-GRID HOME IN SPAIN.” FOR SALMON CAMPS, IT OFFERS THE CHANCE TO UNHOOK GENERATORS AND GO GREEN. THE FIRST THING THAT STRIKES ME AS WE DISEMBARK FROM the helicopter are the sounds. Well, not so much the sounds—the peep of a wood ...
-
Increasing of the quality of energy from stochastic fluctuating sources using dynamic power conditioning
The stochastic fluctuating offer of wind energy limits the capacity of supply in electrical grids for technical and economical reasons. To increase the supply, a concept of dynamic conditioning with the objective of increasing the quality of supply was developed. The concept envisages supporting and managing the electrical grid, respectively by compensating of active and reactive power with ...
-
Integration of wind-generating units into the Corsican electrical grid: determination of the maximal integration rate from a reliability analysis based on a stochastic process
This paper investigates the potentiality of Wind Electric Conversion Systems (WECS) integrated into the islander electrical grid of Corsica. Probabilistic models for WECS and their use in the reliability studies of combined wind electric and conventional generation systems are discussed. The method, based on the evaluation of the Loss of Load Probability (LOLP), uses a Markov model applied to the ...
-
New Generation Small Wind Turbines for Remote Power Systems and Grid Connection
In this collaborative activity Partners will undertake research and develop economically viable, reliable small wind turbines for remote power systems located away from the electricity grid as well as for connection into the grid. This project will study small wind turbine operation in a wide range of situations, with the goals of improving design, developing safety methodologies and reducing ...
-
Intermittency of wind: the wider picture
This paper puts the discussion on intermittency of wind into its wider context: in the first part, it reviews the natural variability of all resources that power renewable energy technologies. This highlights how intermittency of wind influences the degree of variability relative to other renewable energy technologies, but does not change its kind. In the second part, management options for ...
-
Engineering, Procurement, Construction (EPC) Project - Case Study
We were awarded an Engineering, Procurement, Construction (EPC) contract for six(6) pre-owned Deutz Diesel Engine to a new power plant in Asia. The power plant generate and supply about 30MW of electricity to the national ...
-
An Action Plan to Integrate Plug-in Electric Vehicles with the U.S. Electrical Grid
Executive Summary: Americans purchased almost 18,000 plug-in electric vehicles (PEVs) in 2011, a strong first year for these transformative vehicles. Recently, private industry and government have invested valuable resources in developing, promoting, and deploying PEVs. These vehicles offer an uncommon opportunity to address energy security, air quality, climate change, and economic growth. ...
-
Heating Electrification: Policies to Drive Ground-Source Heat Pump Adoption
Executive Summary Ground-source heat pumps (GSHPs) are typically the most efficient form of heating and cooling for buildings. For every unit of electricity a GSHP system consumes, it produces roughly 3-4 units of equivalent heat (or cooling), thanks to the solar energy naturally stored underground. Because of these efficiencies, GSHPs can provide significant cost savings in the effort to ...
-
Economics of large-scale intermittent RES-E integration into the European grids: analyses based on the simulation software GreenNet
Market integration of Renewable Energy Technologies for Electricity (RES-E) generation is one of the core topics in the energy policy agenda of the European Commission (EC). However, legislation in this context still faces a variety of lacks (e.g. ignoring unbundling principles) in almost all countries of the European Union (EU). The recently finished EC-Project GreenNet addresses these existing ...
-
Designing a sustainable hydrogen energy economy
A general vision of a sustainable energy economy relying substantially on hydrogen produced from renewables is sketched as a potential solution to the twin global crises of climate change and depleting oil reserves. Core differences between this 'sustainable hydrogen economy' (SHE) and the original hydrogen economy (HE) proposed in the early 1970s are discussed. In transport, rather than posing a ...
-
Residential Heat and Power - Case Study
A wide variety of technologies are available to provide heating and electricity to our homes. In countries with a stable electricity grid, lighting and heating are taken for granted; but the desire for cleaner energy is highlighting how dirty grid electricity is around the world, and concerns over the future of nuclear power are adding to the debate. Many countries also have a network that ...
-
A novel discrete multi-objective particle swarm optimisation (MOPSO) technique for optimal hybrid power filter compensator schemes
This paper presents a novel algorithm for a discrete search optimisation and an approach to solve the problem of the hybrid power filter compensator with the design of C-type filter and fixed capacitor bank using discrete multi-objective particle swarm optimisation (MOPSO) method. This novel optimisation approach, a multi-objective particle swarm optimisation (MOPSO) method is implemented to ...
-
Repair strategies for minimising the risk of cascading failures in electricity networks
In this work, we develop repair strategies for simplified models of electric power grids. The goal is to gain insight into the combinatorial properties of repair problems in order to improve maintenance and restoration planning. Firstly, we consider a seriously damaged grid and try to find the set of lines that should be repaired first in order to resupply the customers as fast as possible. We ...
-
Prospects for nuclear energy in West Asia and North Africa
Population and economic growth in West Asia and North Africa (WANA) continue to drive upward the demand for energy services and freshwater. Currently, oil and gas are the principal fuels for electricity generation and desalination, but this is expected to change in the future. Demand expectations, high oil and gas prices, export revenue maximisation, energy supply security considerations and ...
-
Is today`s intereste in efficiency a blip
Political leaders push energy efficiency when electricity rates spike, then drop it like a hot potato when prices fall. So how long will the current interest last? Three reports out this week indicate power prices will not ease any time soon. Indeed, forces are in place to only push costs higher. One force is the renewable portfolio standard, according to Standard & Poor’s Ratings ...
-
Rural electrification through renewable energy in Nepal
Nepal is rich in hydropower. However, due to various constraints the rural sector of Nepal is still deprived of a national electrical grid. Renewable energy resources are the most viable and accessible sources to electrify these rural sectors. Micro-hydro and solar photovoltaics (PV) are widely used renewable energies for rural electrification. Presently, this source provides electricity to only ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you