The RO provides neutrality for SRF, which means that ROCs can still be claimed on an eligible biomass fuel stream being co-fired in a fossil fuelled power station even though it is being burnt alongside SRF. The renewable content of the SRF is not eligible for ROCs unless the combined energy content of the biomass fuel stream and the SRF is at least
90% derived from animal or plant matter which would mean the fuel stream as a whole could be treated as biomass.