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Results - Selection Process
In order to select the best combination of renewable systems, we have so far been focusing on match rate. However, as described in various sections of this report we can also consider grid interaction (which may either be maximised or minimised depending on incentives available, such as feed in tariffs) and of course the capital cost of the system, which will be a key factor dependant on the funds available.
The following graph displays the match rate, grid interaction and capital cost of the renewables for each of the combinations of hybrid renewable systems explored in the present scenario. The regular pattern occurring in each line of the graph is due to the sizing procedure, in which a single wind turbine was combined with various combinations of PV supply, which was repeated for various sizes of wind turbines each combined with the same PV supplies.
We can see from this graph that there is a section in which the maximum match rate and minimum grid interaction overlap, and this is the section which we would recommend using to select a renewable system, also using the cost of the renewables to influence such a decision. This is for the case in which feed in tariffs are unavailable in the future, as if they were available it may be advantageous for the community to invest in an oversized renewable system to gain a larger profit.
All of our matching results are available as a spreadsheet download.