Field analysis of solar PV-based collective systems for rural electrification.

This article analyses the long-term performance of collective off-grid photovoltaic (PV) systems in rural areas. The use of collective PV systems for the electrification of small medium-size villages in developing countries has increased in the recent years. They are basically set up as stand-alone installations (diesel hybrid or pure PV) with no connection with other electrical grids. Their particular conditions (isolated) and usual installation places (far from commercial/industrial centers) require an autonomous and reliable technology. Different but related factors affect their performance and the energy supply; some of them are strictly technical but others depend on external issues like the solar energy resource and users’ energy and power consumption. The work presented is based on field operation of twelve collective PV installations supplying the electricity to off-grid villages located in the province of Jujuy, Argentina. Five of them have PV generators as unique power source while other seven include the support of diesel groups. Load demand evolution, energy productivity and fuel consumption are analyzed. Besides, energy generation strategies (PV/diesel) are also discussed

Decolonising ethics frameworks for research in Africa

Ethical review processes are integral to critical and morally grounded research. But when research is conducted outside of Western contexts, what is the effect of imposing localised and alien frameworks? Keeyaa Chaurey recounts her issues in preparation for field research in South Africa and says to ensure quality data the ethical review should be decolonised

Location-Based Tax Incentives: Evidence from India

While policies targeting particular geographic regions are widely used by governments, there have been few rigorous evaluations of their causal impacts. In this paper, I study the impact of a location-based tax incentive scheme in India. Using aggregated and firm-level panel data, I find large increases in employment, total output, fixed capital, and the number of firms as a result of the program. These increases are due to both the growth of existing firms as well as the entry of new firms. There is supporting evidence that the new firms entering the treated regions are larger and more productive. I find no evidence for relocation of firms or spillovers in industrial activity between treatment and control areas. Finally, using data from household surveys, I show that wages of workers rise but find no changes in housing rents or migration across the treated and control regions. My results therefore suggest that the policy increased welfare, and I also conclude that the policy was cost-effective. This provides support for “place-based” policies to correct for regional economic disparities, especially in settings with low labor mobility

Creditors’ Rights, Threat of Liquidation, and the Labor and Capital Choices of Firms

In 2002, India introduced a legal reform that allowed secured creditors to seize and liquidate a defaulter’s assets, thereby strengthening creditors’ rights. We study the impact of the legal change on firms’ real decisions regarding their capital and labor, exploiting variation in their prepolicy proportion of collateralizable assets. We find that firms increased employment and reduced their capital investments. These effects are especially strong for firms in regions with less-efficient courts. Our results are consistent with an increased threat of liquidation for firms following the passage of the law

Essays on Firm Behavior In India

The private sector in developing countries plays a key role in job-creation and is central to economic development and poverty alleviation. Governments around the world use various policies and regulations targeting firms in an attempt to foster growth. This dissertation focuses on the interplay between government policies, firm behavior, and labor markets in India. In Chapter 1, I study the impact of a location-based tax incentive scheme in India. Location-based policies that target particular geographic regions are widely used by governments, but there have been few rigorous evaluations of their causal impacts especially in the context of developing countries. Using aggregated and firm-level panel data, I find large increases in employment, total output, fixed capital, and the number of firms as a result of the program. These increases are due to both the growth of existing firms as well as the entry of new firms. There is supporting evidence that the new firms entering the treated regions are larger and more productive. I find no evidence for relocation of firms or spillovers in industrial activity between treatment and control areas. Finally, using data from household surveys, I show that wages of workers rise but find no changes in housing rents or migration across the treated and control regions. My results therefore suggest that the policy increased welfare, and I also conclude that the policy was cost-effective. This provides support for place-based policies to correct for regional economic disparities, especially in settings with low labor mobility. In the next chapter, I focus on the effects of a place-based policy on informal firms. The informal sector in India is a major component of economic activity covering more than 80% of the workforce. More often than not, the informal sector is beyond the ambit of tax authorities, hurting public finances in India. In Chapter 2, I study the impact of the federally financed location-based tax incentive scheme (studied in Chapter 1) on informal firms in India. Using a difference-in-differences approach with bordering districts, neighboring states, and major states as control groups, I find no evidence for increases in employment, total output, gross value added, and registration status for informal firms on average. However, separating informal firms into those that do not hire regular workers (Own Account Manufacturing Enterprises) and those that hire workers (Non-directory manufacturing enterprises/Directory Manufacturing Enterprises) reveals heterogeneous effects. I find that the policy change led to a higher likelihood of registration by NDME/DMEs but no effect on OAMEs. The policy change did not impact the size of these different kinds of firms. This chapter provides suggestive evidence that tax-exemption schemes can be a useful policy tool to incentivize informal firms to register. In Chapter 3, I revisit the contentious labor laws in India and their effects on hiring decisions of firms faced with demand shocks. Labor regulations in India differ by states and apply differently across types of laborers. The most restrictive laws make it harder to fire permanent workers for firms. However, these laws do not apply to workers hired through contractors (contract workers). Using firm-level data from India, I find that compared to firms in flexible labor regulations, those in more restrictive labor regimes hire more contract workers as a response to transitory local demand shocks. I find no differential response in hiring of permanent workers by firms faced with these shocks. This suggests that firms circumvent labor laws by hiring workers indirectly through contractors in the face of economic fluctuations

Estudio por GC-MS del aceite de la hoja de Artabotrys odoratissimus

GC-MS study of two fatty oil fractions from Artabotrys odoratissimus (leaves) indicated the presence of fifteen compounds namely, nonanoic acid; methyl phenyl propanoate; decanoic acid; diethyl phthalate; dibutyl phthalate; 2-amino-3-ethyl biphenyl; 5-methyl-9-phenylnonan-3-ol; hexadeca-2,7,11-triene; 2,6-dimethyl-1-phenylhepta-1-one; 2,5-dimethyltetradecahydrophenenthrene; 1-phenylundecane; 1-isopropyl-4,6-dimethyl naphthalene; 5-(2-butyl phenyl)pent-3-en-2-ol; 1-phenyldeca-1-one and 1-phenylundecan-1-one. Some of the compounds are rare occurring and biologically activeEl estudio por GC-MS de dos fracciones del aceite de la hoja de Artabotrys odoratissimus indicó la presencia de quince compuestos tales como: ácido nonanoico; fenil propanoato de metilo; ácido decanoico; ftalato de dietilo; ftalato de dibutilo; 2-amino-3-etil bifenilo; 5-metil-9-fenilnonan-3-ol; hexadeca-2,7,11-trieno; 2,6-dimetil-1-fenilheptan-1-ona; 2,5-dimetiltetradecahidrofenantreno; 1-fenilundecano; 1-isopropil-4,6-dimetil naftaleno; 5-(2-butilfenil)-3-penten-2-ol; 1-fenildecan-1-ona y 1-fenilundecan-1-ona. Algunos de estos compuestos son poco frecuentes y activos biológicamente

Imagining renewable energy: towards a Social Energy Systems approach to community renewable energy projects in the Global South

Rural community energy projects in the Global South have too frequently been framed within a top-down technologically-driven framework that limits their ability to provide sustainable solutions to energy poverty and improving livelihoods. This framing is linked to how energy interventions are being imagined and constructed by key actors in the sector, via particular sociotechnical imaginaries through which a set of increasingly universalised energy futures for rural communities is prescribed. Projects are too frequently reverse-engineered through the lens of particular combinations of technologies, financial models and delivery mechanisms, rather than by attending to the particular energy needs/aspirations of individual communities. Assumptions over the association between energy access and livelihood enhancement have also reinforced a technocratic determination of appropriate system scale and a search for universalised ‘scaleable’ delivery models. There is, however, no necessary causation between scaleability and outcomes – appropriate implementation scales are not purely determined by technical or financial considerations, rather it is the social scale via which optimum forms of local participation and ownership can be achieved. To operationalise this concern for social space we propose a Social Energy Systems (SES) approach that is advanced via exploration of the interactions between three distinct but mutually edifying variants of energy literacy – energy systems literacy, project community literacy and political literacy

A new integral management model and evaluation method to enhance sustainability of renewable energy projects for energy and sanitation services

Autonomous systems based on the use of renewable energy (RE) have proven suitable for providing energy and sanitation services to isolated communities. However, most of these projects fail due to managerial weaknesses. Designing an appropriate management model is a key issue for sustainability and it is especially complex when includes different RE technologies. This paper is aimed at developing a novel management model for RE projects to provide energy and sanitation services with any kind of technology. Moreover, a new method to evaluate the sustainability is proposed regarding technical, economic, social/ethical, environmental and institutional/organisational dimensions. The case study of Pucara (Peru) is presented, in which a RE project with six different technologies was implemented and the integral community management model was designed in 2011. The project sustainability was evaluated in 2013 and results showed that the management model has succeeded to strengthen sustainability, especially in the institutional/organisational aspects.The authors would like to thank the anonymous reviewers for their valuable comments, which have helped to enhance this paper. The authors are grateful for all the assistance and support provided by Practical Action-ITDG from Peru.Lillo Rodrigo, P.; Ferrer-Martí, L.; Fernández-Baldor, Á.; Ramírez, B. (2015). A new integral management model and evaluation method to enhance sustainability of renewable energy projects for energy and sanitation services. Energy for Sustainable Development. 29:1-12. doi:10.1016/j.esd.2015.08.003S1122