NPI+ is a net zero operation. This is achieved by minimising the carbon emissions associated with office and transport operations by relevant technological means, and by offsetting the remaining carbon emissions through the purchase of carbon offsets. The estimation of home and business Greenhouse Gas (GHG) emissions is shown below:

1. The Australian Greenhouse Calculator was used to estimate carbon emissions in 2019, and the estimate was adjusted for changes in 2026.
2. Since 2019, electric vehicle transportation has conservatively reduced the original 8.7 tonne vehicle transport emissions by 75%.
3. Since 2019, there has been minimal air travel, so the original 0.11 tonnes has been reduced to a third.
4. Since 2020, solar battery storage and electric heating have conservatively quartered this contribution from the original 0.36 tonnes.
5. More efficient appliances and the solar battery have reduced this impact by half since 2019.
6. Since 2018, buying less processed and carbon intensive food has conservatively halved this contribution from the original 10.4 tonnes.
7. Since 2021, food waste processed by composting has increased by 33%.
8. Emissions are adjusted upwards by 10% to account for calculation uncertainties, and then rounded to the nearest whole number.
9. The carbon emissions are offset using Greenfleet, a respected source of carbon offsets since 1997.
10. The cost of Greenfleet carbon offsets is $22 per tonne.
11. On 19 June 2026, 11 tonnes of carbon emissions were offset using carbon credits from Greenfleet.

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