As part of the Environmental and Social Impact Assessment of the PNG Biomass project, comprehensive independent emission modelling has been carried out. An estimated 170,000 – 180,000 tonnes CO2 will be saved per year as fuel switch credits (compared to diesel or heavy fuel oil – HFO) from sustainable biomass power. This means that over the 25-year project life, emissions of over 4 million tonnes of CO2 will be saved — compared to diesel and HFO power alternatives. In addition, by substituting biomass for diesel in power generation, a 30 MWe biomass project will avoid the importation of approximately 10 million barrels of diesel over a 25‑year contract period.
Biomass power generation has negligible emissions of sulphur and nitrous oxide.