PhD Thesis - Energy Systems Research Unit - University of Strathclyde

When all timesteps have been considered, if one or more of the fuel supplies is
seasonal, any remaining fuel is added to the fuel availability for the first
timestep, the process is repeated, and the second year’s results are used for the
graphs. The supply and demand graphs, residual and excess graphs, fuel storage
graphs, and load following supply profile of use graphs are then drawn.
4.3.6 Outputs of the Matching Process
Through the matching process the user is able to assess a number of important
criteria, in order to allow the comparison of different supply scenarios.
• Graphs are available to show the residual demand and supply, so that
decisions can be taken about any demand and supply changes that may
be made, and what type of load following or storage technologies might
be appropriate.
• A statistical analysis is made to show how well profiles match [1], and
the user is able to analyse each energy carrier individually, or get an
overall rating. This overall rating only considers energy carriers for
which there is either a demand or supply, as there will not always be a
need for all four of the demand types.
• A graph showing the profile of use of the load following supplies (e.g.
percentage load of the engine over time, state of charge of the battery,
vehicle tank contents) is given in order to ensure that the equipment is
not being used in a way which would be damaging to it, and that the
rated capacity or other parameters chosen are appropriate for this
particular application. Other useful information is also given about the
performance of these supplies in the box above the graph.
• The overall fuel use for each fuel type (and estimated annual fuel use if
seasonal representative periods are being analysed) is calculated, and
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