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Browsing by Subject "Renewable energy sources"

Now showing items 1-8 of 8

Design and development of a low-cost thermal response rig

Hemmingway, Phil ; Long, Michael (Michael M.) (Institution of Civil Engineers, 2012-08-01)

A thermal response test (TRT) is a controlled insitu test during which a known quantity of heat energy is injected into a closed loop heat-exchanger pipe while the heat dissipation rate into the surrounding ground is ...
Generation portfolio analysis for a carbon constrained and uncertain future

Doherty, Ronan ; Outhred, H. ; O'Malley, Mark (IEEE, 2005-11-18)

Many modern electricity systems are faced with the challenge of reducing green house gas emissions and dealing with increasing and more volatile fuel prices. Adequately dealing with these issues requires the evolution ...
Geothermal energy in small countries - laying the foundations for innovative development

Hemmingway, Phil ; Long, Michael (Michael M.) (World Federation of Engineering Organizations, 2011-09-04)

Creation of an environment in which shallow geothermal energy can thrive will require a coherent approach and a high level of collaboration with professionals from countries that have developed technical expertise in the ...
Impact of optimal charging of electric vehicles on future generation portfolios

Shortt, Aonghus ; O'Malley, Mark (IEEE, 2009-09)

Battery electric vehicles are considered by many to be part of a series of measures necessary to reduce global carbon dioxide emissions and dependence on fossil fuel resources. The extent to which this is possible depends ...
The role of power system flexibility in generation planning

Lannoye, Eamonn ; Flynn, Damian ; O'Malley, Mark (IEEE, 2011-07-24)

As the penetration of variable renewable generation increases in power systems worldwide, planning for the effects of variability will become more important. Traditional capacity adequacy planning techniques have been ...
Stochastic power system operation

Power, Michael (2010)

This paper outlines how to economically and reliably operate a power system with high levels of renewable generation which are stochastic in nature. It outlines the challenges for system operators, and suggests tools and ...
Thermal response testing of compromised borehole heat exchangers

Hemmingway, Phil ; Long, Michael (Michael M.) (Oxford University Press, 2012-03-19)

The results of five thermal response tests (TRTs) are presented. Three of the tests were carried out consecutively on the same borehole to illustrate the importance of allowing artificially imposed thermal gradients to ...
The viability of balancing wind generation with storage

Feeley, C. ; Bryans, A. G. ; Nyamdash, Batsaikhan ; Denny, Eleanor ; O'Malley, Mark (IEEE, 2008-07)

This paper studies the impact of balancing wind generation with storage on the thermal plant mix and load for different levels of installed wind and storage, and under different operational strategies. Moreover, the ...