Keywords: bioenergy, energy balance, energy ratio, sugar–based ethanol, fuel savings, sustainability, green economy, clean development mechanism, CDM, Mauritius, sustainable development, biofuels, climate policy, island economies, renewable energy, bioethanol production, green supply chains, fertiliser production, feedstock transport, sustainability, organic fertilisers, sustainable transport, land use, clean technology
An assessment of energy balance from sugar–based ethanol for fuel–saving and climate policy - the case of an island economy
The study assesses the efficiency of sugar–based ethanol production in Mauritius using the net energy balance and energy ratio. The findings indicate a positive net energy balance. For every one unit of fossil fuel used, the system returns more than six times in terms of renewable energy from ethanol. The fuel savings and other economic benefits which may be accrued to Mauritius are discussed. The sensitivity analysis shows that the fossil energy consumed in the production of fertilisers and in the transportation of feedstock to factory represents the main components which influence efficiency indicators. Greening the supply chain may enhance the efficiency and sustainability of bio–ethanol production systems. Green strategies may include the use of organic fertilisers, clean technology, and sustainable transportation and land use. The efficiency indicators can also be used to guide the CDM for sugar–based ethanol project.