New Zealand Gazette – 2010 – No. 50

Page 1372

✨ Emissions Rules

1372 NEW ZEALAND GAZETTE, No. 50 30 APRIL 2010

Emissions Rules

Data must be supplied for each financial year from only the following emissions sources, expressed in tonnes of CO2 equivalent:

(a) the direct oxidation or use as feedstock of any coal, natural gas, used oil, or waste oil as part of the activity;

(b) the direct oxidation or use as feedstock of any coal, natural gas, used oil, or waste oil to generate steam that is used as part of the activity;

(c) the direct use of geothermal fluid as part of the activity, including the direct use of geothermal fluid to generate steam that is used as part of the activity;

(d) any of the activities listed in Part 4 of Schedule 3 of the Act carried out as part of the activity; and

(e) the use of electricity used as part of the activity.

Emissions must be calculated using the applicable formulae and emission factors specified in these data collection rules and in the specified template. Direct measures cannot be used as a substitute.
Emissions from the direct use of natural gas/coal as a feedstock must be calculated as zero when either (1) the feedstock is used to produce an obligation fuel defined in the Climate Change (Liquid Fossil Fuels) Regulations 2008, or (2) the production of the output is eligible to earn emission units under the Climate Change (Other Removal Activities) Regulations 2009.
Emissions for which no obligation exists under the Act due to an exemption made by Order in Council under section 60 of the Act must be calculated as zero.
Total emissions from a heat/steam plant must be allocated to an activity in proportion to its use of the output of the plant. Total emissions from a co-generation plant must be split between heat/steam and electricity emissions on the basis of relative efficiencies of production, using efficiency rates of 80% for steam and 35% for electricity, then the heat/steam emissions must be allocated to the activity in proportion to its use of the output of heat from the plant.

Emissions allocated to heat/steam production must be estimated using the following formula:

EH = (H / (H/eH + P/ep)) * ET and Ep = ET - EH

Where:
EH = emissions allocated to steam production
H = steam output (energy)
eH = assumed efficiency of steam production
P = delivered electricity generation (energy)
ep = assumed efficiency of electricity generation
ET = total direct emissions of the CHP system
Ep = emissions allocated to electricity production

Next Page →