FAF (Fuel Adjustment Factor)

The last six+ months of applicable FAF rates are summarised below.  Note that FAF rates do not get lower than 0%.  This is partly related to the historical relationship between fuel prices and exchange rates and non-fuel inflationary pressures.  If fuel costs fall below base rates for a sustained period, not offset by corresponding non-fuel costs, then rates can be adjusted accordingly.

We also provide a link here to access the MBIE fuel cost data.  This is the rate used in calculating FAF.  The formula is partly historic, and partly looks at the gradient and momentum of change to build in an expectation level for the next four week period.  If the cost of fuel dramatically rises or falls during a month we may adjust it within the period.

From Date

From Date To Date FAF Rate
1st May 2016 31st May 2016  1.00%
1st June 2016 30th June 2016

 2.00%

1st July 2016 31st July 2016

 3.50%

1st Aug 2016 31st Aug 2016  3.50%
1st Sept 2016 30th Sept 2016  3.50%
1st Oct 2016 31st Oct 2016 3.50%
1st Nov 2016 31st Jan 2017 4.50%
1st Feb 2017  31st Mar 2017 5.25%
1st April 2017  30th April 2017 4.90%
1st May 2017  31st May 2017 4.50%
1st June 2017  30th June 2017 4.00%
1st July 2017  31st Aug 2017 3.00%
1st Sept 2017  31st Oct 2017 4.50%
1st Nov 2017  21st Nov 2017 5.50%
22 Nov 2017  31st Mar 2018 7.00%
1st Apr 2018  13th May 2018 6.00%
14th May 2018 26th May 2018  7.00%
27th May 2018  31st Aug 2018 8.5%
1st Sept 2018  30th Sep 2018 9.5%
1st Oct 2018  31st Oct 2018 10.00%
1st Nov 2018   9.5%

 

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