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Technical, mitigation, and financial comparisons of 6kWe grid-connected and stand-alone wood gasifiers, versus mineral diesel and biodiesel generation for rural distributed generation

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  • McHenry, M.P.

Abstract

This research presents a technical simulation and economic model of three small-scale technical alternatives supplying a typical rural homestead electricity load: a 15kVA wood gasification unit coupled to a 6kWe modified grid-connected petrol generator; the same system operating as a stand-alone system, and; a 6kWe diesel generator, all modelled against the electricity network in the southwest (SW) of Western Australia (WA). The three technical alternatives are supplemented by a further four comparative scenarios, including zero woodgas fuel and labour costs, generous capital and feed-in-tariff subsidies, and also the displacement of mineral diesel with biodiesel. The results quantify technical outputs of the systems and also the associated financial and greenhouse gas emissions of each system and scenario. The results indicate that significant mitigation is possible from each regional household using woodgas technologies or biodiesel fuels, yet the associated costs of this mitigation is extremely high when compared to the electricity network. In light of the extremely high cost of electricity and mitigation using small-scale bioenergy systems, governments may consider re-allocation of small-scale grid-connected distributed energy support mechanisms towards larger regional bioenergy projects, or risk increasing the electricity prices for private entities and governments.

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  • McHenry, M.P., 2012. "Technical, mitigation, and financial comparisons of 6kWe grid-connected and stand-alone wood gasifiers, versus mineral diesel and biodiesel generation for rural distributed generation," Energy, Elsevier, vol. 40(1), pages 428-437.
  • Handle: RePEc:eee:energy:v:40:y:2012:i:1:p:428-437
    DOI: 10.1016/j.energy.2012.01.034
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    References listed on IDEAS

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    1. McHenry, Mark P., 2009. "Remote area power supply system technologies in Western Australia: New developments in 30 years of slow progress," Renewable Energy, Elsevier, vol. 34(5), pages 1348-1353.
    2. Haas, Reinhard & Resch, Gustav & Panzer, Christian & Busch, Sebastian & Ragwitz, Mario & Held, Anne, 2011. "Efficiency and effectiveness of promotion systems for electricity generation from renewable energy sources – Lessons from EU countries," Energy, Elsevier, vol. 36(4), pages 2186-2193.
    3. McHenry, Mark P., 2012. "A technical, economic, and greenhouse gas emission analysis of a homestead-scale grid-connected and stand-alone photovoltaic and diesel systems, against electricity network extension," Renewable Energy, Elsevier, vol. 38(1), pages 126-135.
    4. Alexander Ljungqvist & Matthew Richardson, 2003. "The cash flow, return and risk characteristics of private equity," NBER Working Papers 9454, National Bureau of Economic Research, Inc.
    5. McHenry, Mark P., 2012. "Small-scale (≤6 kWe) stand-alone and grid-connected photovoltaic, wind, hydroelectric, biodiesel, and wood gasification system’s simulated technical, economic, and mitigation analyses for rural region," Renewable Energy, Elsevier, vol. 38(1), pages 195-205.
    6. McHenry, Mark P., 2009. "Why are remote Western Australians installing renewable energy technologies in stand-alone power supply systems?," Renewable Energy, Elsevier, vol. 34(5), pages 1252-1256.
    7. Parker, Rh, 1968. "Discounted Cash Flow In Historical Perspective," Journal of Accounting Research, Wiley Blackwell, vol. 6(1), pages 58-71.
    8. Purohit, Pallav, 2009. "CO2 emissions mitigation potential of solar home systems under clean development mechanism in India," Energy, Elsevier, vol. 34(8), pages 1014-1023.
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    Cited by:

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    3. Auld, Trisha & McHenry, Mark P. & Whale, Jonathan, 2014. "Options to mitigate utility-scale wind turbine impacts on defence capability, air supremacy, and missile detection," Renewable Energy, Elsevier, vol. 63(C), pages 255-262.

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