* Technical Challenges - ESKOM may have some risks associated with introduction of co-firing at power stations, and may elect to do so only at selected sites. The most feasible location is in Mpumalanga Highveld, but the availability of biomass is somewhat dependent on maize residues which may be highly variable. Western Cape option may not be feasible since power stations have been decommissioned. * Cost Challenges - Costs are acceptable comparable to current electricity...