Impact of government subsidies on household biogas use in rural China

In this paper, we evaluate empirically the impact of biogas subsidies on household biogas energy use in rural China. Special attention was given to the problem of sample selection bias in assessing the impact of subsidies on biogas energy use because biogas subsidies often change the propensity for installing biogas digesters. Using data from a large-scale household survey, the results indicate that biogas subsidies did promote the construction of biogas digesters. The results suggest that a 10 percentage point increase in subsidy-cost ratio would lead to a 3% increase in digester installations. We also found that biogas subsidies correlated negatively with average time of digester use. A 10 percentage point increase in the subsidy-cost ratio would result in a 4.3% reduction in the average working time of digesters. These results suggest that the net effect of the current subsidy policy on rural household biogas use was near-negligible. Indeed, a 10 percentage point increase in the subsidy-cost ratio resulted in a mere 1.15% increase in biogas use. These findings indicate that biogas subsidies have possibly not been targeted effectively at households that would actually prefer to use biogas energy.

[1]  Sang-Hyeon Jin,et al.  The effectiveness of energy efficiency improvement in a developing country: Rebound effect of residential electricity use in South Korea , 2007 .

[2]  Yi-Ming Wei,et al.  Regional total factor energy efficiency: An empirical analysis of industrial sector in China , 2012 .

[3]  S. Paul,et al.  CO2 emission from energy use in India: a decomposition analysis , 2004 .

[4]  Boqiang Lin,et al.  Estimates of energy subsidies in China and impact of energy subsidy reform , 2011 .

[5]  Gerald Leach,et al.  The energy transition , 1992 .

[6]  Wei Liu,et al.  Improving energy consumption structure: A comprehensive assessment of fossil energy subsidies reform in China , 2011 .

[7]  Gaihe Yang,et al.  Household Biogas Use in Rural China: A Study of Opportunities and Constraints , 2018, Renewable Energy.

[8]  Changshan Ren,et al.  The progress and prospects of rural biogas production in China. , 2012 .

[9]  Jeffrey M. Wooldridge,et al.  Solutions Manual and Supplementary Materials for Econometric Analysis of Cross Section and Panel Data , 2003 .

[10]  Knud Villy Christensen,et al.  A review of the biogas industry in China , 2011 .

[11]  Wang Xiaohua,et al.  Influence of using household biogas digesters on household energy consumption in rural areas--a case study in Lianshui County in China , 2005 .

[12]  Guizhen He,et al.  Sustainability effects of household-scale biogas in rural China , 2013 .

[13]  Zhongmin Yang,et al.  Energy technology patents–CO2 emissions nexus: An empirical analysis from China , 2012 .

[14]  W. Qu,et al.  Which factors are effective for farmers’ biogas use?–Evidence from a large-scale survey in China , 2013 .

[15]  Douglas F. Barnes,et al.  Rural Energy in Developing Countries: A Challenge for Economic Development , 1996 .

[16]  M. O. Ilori,et al.  Engineering design and economic evaluation of a family-sized biogas project in Nigeria , 2000 .

[17]  Anne E. Sartori.  An Estimator for Some Binary-Outcome Selection Models Without Exclusion Restrictions , 2003, Political Analysis.

[18]  Yixiang Zhang,et al.  Determinants of public acceptance of tiered electricity price reform in China: Evidence from four urban cities , 2012 .

[19]  Yixiang Zhang,et al.  Determinants and policy implications for household electricity-saving behaviour: Evidence from Beijing, China , 2011 .

[20]  Brian C. O'Neill,et al.  The energy transition in rural China , 2004 .

[21]  R. Heltberg,et al.  Fuel switching: evidence from eight developing countries , 2004 .

[22]  Jan Bentzen,et al.  Estimating the rebound effect in US manufacturing energy consumption , 2004 .

[23]  L. Lee.  Household energy mix in Uganda , 2013 .

[24]  J. Mugisha,et al.  Biogas energy from family-sized digesters in Uganda: Critical factors and policy implications , 2009 .

[25]  J. Heckman.  Sample selection bias as a specification error , 1979 .

[26]  Jingyi Han,et al.  Small-scale bioenergy projects in rural China: Lessons to be learnt , 2008 .

[27]  Eric Martinot,et al.  A study of the role played by renewable energies in China's sustainable energy supply , 2010 .

[28]  Marrit van den Berg,et al.  Energy consumption in rural China: A household model for three villages in Jiangxi Province , 2006 .