Hi Shareem,
Thanks for the question. We've tried to cover this off in note 6 that accompanies the report under 'more information'. Market segments are not mutually exclusive. SME connections are just small commercial or industrial connections. This approach is consistent across all EMI reports. Note 6 also describes how we define SME connections in this electricity market context. The ANZSIC codes that are used are populated by traders in the registry. Traders are required to have reasonable processes in place to ensure these remain up to date so the figures should be fairly accurate.
I've copied note 6 below to assist you. When I get time, I will edit the note to make it clearer and hopefully avoid any confusion.
Market segment breakdowns are available from September 2013 when ANZSIC codes were introduced into the registry in a field maintained by the trader. No breakdown is available at NSP level. Market segments are not mutually exclusive. Residential connections have no ANZSIC code. Small and Medium Enterprise (SME) connections are defined as those assigned meter categories 1 and 2 (low voltage up to 500A) with an ANZSIC code excluding those relating to central or local government and other utility services. Industrial connections have ANZSIC code from A through E and commercial connections F through Z. More information on ANZSIC codes is available at www.stats.govt.nz.
Cheers,
Matthew
