The PNG Biomass Project is an integrated biomass energy project to provide a reliable, sustainable and competitive renewable energy solution for PNG.
The project involves the development of 18,000+ hectares of FSC certified forestry plantations, using underutilised Kunai grasslands in the Markham Valley, and the development of a 30 MW Biomass Power Plant to generate electricity for supply to the RAMU Grid.
Above: Diagram showing the integration of the components of the PNG Biomass Project from the land, plantations, power plant within the plantation area and the final generation of electricity into the Ramu regional power grid.
The forestry development will require the planting of more than 20 million trees and will be managed in an internationally sustainable manner. The plantations will provide a dedicated fibre source for the power plant, which will require the annual supply and harvesting of over 200,000 bone dry tonnes of wood to support the 30 MW power project. The trees will be harvested every 4-7 years.
The trees will be harvested in the plantation and then transported in large trucks to storage facilities at the power plant where they are dried and turned into wood chips for fuel. The chips will then be burned in the power plant to generate high pressure steam that drives a turbine. When the wood chips are burnt they release carbon dioxide (CO2) into the atmosphere. This CO2 is in turn consumed again by the trees in the surrounding plantations. This process is known as photosynthesis, the by product of which is oxygen. The electricity generated from the turbines will then be transferred directly into the nearby Erap substation to provide power into the Ramu Grid.
Schematic of the Biomass power cycle showing role of sunlight, photosynthesis and resultant power generated by a biomass power plant generating steam and electricity