ghg-inventory-1990-2013

Figure
3.3.12 Splits
used for manufacturing industries and construction category
– Fuel oil (1990–2013)
Gaseous fuels
A review of national energy data was undertaken in 2011. As result, several
inconsistencies in
sector reporting weree found, along with a considerable
c
amount of
missing data for natural gas consumption. Where necessary, neww estimates were made
based
on consumer data. Where no consumer data was available, sales dataa was used,
followed by estimates based on regressionn against sub-sector GDP.
Method used in order of preference based on available
data:
actual consumer data
sales data
regression against sector GDP.
1.AA.2.A Iron and steel
Activity data for
coal used in i iron and steel production is reported to the Ministry of
Business, Innovation and Employment byy New Zealand Steel. A considerablee amount of
coal is used in the production of iron. The majority of the coal is used inn the direct
reduction processs to remove oxygen from
iron-sand. However, alll emissions from the use
of coal are included in the Industrial Processes sector
because thee primary purpose of the
coal is to produce
iron (IPCC, 2000). A small amount of gas is used in the production of
iron and steel to provide energy for the process and is reported under the Energy sector.
1.AA.2.C Chemicals
The chemicals subcategory includes estimates from the following sub-industries:
industrial gases and synthetic resin
organic industrial chemicals
68
New Zealand’s Greenhouse Gas Inventory 1990–2013