Farm Carbon Footprint Calculator

Start
Stock
Production/Revenue
Farm Fuel
Contractors
Fertiliser/Feed
Results

Assessment Parameters

YearThis is used for electricity generation emissions (Scope 2). New Zealand electricity production is highly dependent on hydroelectricity and as such emissions from electricity are highly dependent on weather, which can vary heavily from year to year. The electricity emission factors for 2017 to 2020 are based on the latest available factor (2017).
Global Warming PotentialThis assessment parameter selects the desired global warming potential of methane and nitrous oxide, i.e. how much more global warming potential do these gases have compared to carbon dioxide. This has been revised several times by the IPCC.
Carbon Footprint assessmentThis assessment parameter is used to decide if diesel, petrol and electricity emissions are calculated for their combustion only, or for all emissions related to their generation, transport and usage over their life cycle.

This calculator is a simplified approximation of the greenhouse gas emissions from a farm.

For a more accurate estimate, programs such as Overseer should be used - as these take into account a far larger number of variables including soil, climate and animal performance.

This calculator is based on the averages and emission factors used in the New Zealand Greenhouse Gas Inventory (2016).

Farm Description

Area

Effective Area (Ha)

Do you have Overseer data for your farm? Yes No

Stock Type

Reporting method

	Number	Avg Weight (kg)
Dairy cows
Cattle
Sheep
Deer
Replacement Heifers

Overseer Estimates:

	kg CO₂ eq/ha
Methane
Nitrous oxide

Production and Revenue

	Total kg
Milk Solids
Beef Carcass Weight
Sheep Carcass Weight
Deer Carcass Weight
Greasy Wool
Other

Revenue	Share (%)
Milk
Beef meat
Sheep meat
Deer meat
Wool
Other

Energy and Activity Description

Fuel
Diesel	@ $	per litre
Petrol	@ $	per litre
Electricity	@ $	per kW hr

Contractors

	No. of Hectares
Full Cultivation
Direct Drilling
Hay Making
Silage Making
Fertiliser Ground Spreading
Fertiliser Aerial Spreading

	No. of Hours
Digger
Hedge Trimming
Helicopter
Mulching
Mowing
Spraying (Machine)

Fertiliser & Feed

Fertiliser	kg/ha
Nitrogen
Phosphorous
Potassium
Sulphur
Magnesium
Lime

Feed	Amount purchased (Tonnes dry matter)
Hay
Silage/Baleage
Grain

Results Please define Area on Stock tab

Type	Total kg CO₂ equivalent	per hectare	per kg of
Energy	-	-	-
Fert/Feed	-	-	-
Methane	-	-	-
Nitrous oxide	-	-	-
Total	-	-	-

Your emissions are equivalent to:
557,748	km driven in a medium sized car
33.0	flights from Auckland to London in economy class
The annual CO₂ sequestered by:
4.6	hectares of growing pinus radiata
21.6	hectares of "safe" pinus radiata (residual wood and roots)
20.1	hectares of permanently planted indigenous forest

By Revenue
Milk
Meat
Wool
Other

By Scope
Scope 1 (Direct emissions)
Scope 1 (%)
Scope 2 (Electricity indirect emissions)
Scope 2 (%)
Scope 3 (Other indirect emissions)
Scope 3 (%)
Learn about Scopes here