Solar-powered irrigation system (SPIS) is a sustainable technology that utilizes renewable energy to pump water for agricultural production. Despite its environmental benefits, its adaptation is ...challenged by its high investment cost, particularly for small-scale farmers in most developing countries. This study aims to evaluate the attractiveness of shifting to SPIS from diesel-powered irrigation using the case of small-scale farmers in the Philippines. Considering the cost savings from adopting SPIS, this study analyzes the economic viability and optimal timing of investment under diesel price uncertainty. Results found that SPIS is economically attractive with USD 556.26/ha annual cost savings, USD 229.68/ha net present value, 12.49% internal rate of return, and a 5.58-year payback period. Considering the uncertainty in diesel prices, it is more optimal to invest immediately as waiting incurs losses. Investment decisions for SPIS are further favored by decreasing solar PV systems, multiple utilization, and cost-sharing among farmers. Findings provide recommendations for the widespread adoption of SPIS for more environment-friendly and sustainable production in agricultural countries. Received: 22 March 2024 Accepted: 26 April 2024 Published: 29 May 2024
Despite the significant contribution of buyer-driven knowledge transfer activities (BDKTAs) to innovation and operational performance, studies that analyze social sustainability in manufacturing ...(suppliers) firms are still scarce. This paper examines the mediation relationship of knowledge acquisition and investment in environmental management between BDKTAs and social performance improvements (SPIs). The paper contributes to the understanding of buyer knowledge transfer activities, with a focus on the knowledge acquisition capabilities and investments in environmental management, and the effect on SPIs. The hypotheses were examined with partial least squares structural equation modeling (PLS-SEM) with data collected from 239 firms. Buyer knowledge transfer activities are likely to increase the willingness of suppliers to make specific environmental investments into operations in waste reduction procedures, the recycling of materials, and pollution prevention training of employees. We proposed that buyer knowledge transfer activities are necessary to survive and grow and thus there is a need to acquire knowledge resources to achieve organizational sustainability. Buyer knowledge transfer activities are necessary to make investment decisions in environmental management programs. Firms that focus on buyer knowledge transfer activities and internal investments into environmental management can attain sustainability objectives.
Solar PV irrigation system (SPIS) has proven its potential to impact the agricultural sector. It is known for producing zero GHG emissions, and recent studies have proved its effectiveness compared ...to fuel-based pumps. However, some factors affecting its operations and economic viability that require further study. This study assessed the viability and sustainability of SPIS for providing rice irrigation in the province of Sorsogon, Philippines. Our objectives were to a) identify the optimal deployment locations, b) determine the most effective energy system configurations for rice irrigation, and c) assess the impact on achieving SDGs. Analysis showed that 17% of the province's total land area is suitable for SPIS deployment. A one-hectare land requires 3.302 kWh of energy per day and a water pump with a peak power of 1.1 kW. The optimal energy configuration provided an annual energy of 8,547 kWh from the Solar PV system and an additional 119 kWh delivered by the diesel generator. This setup demonstrates the lowest net present cost (NPC) of ₱ 1,079,642 and the lowest levelized cost of electricity (LCOE) of ₱ 17.79/kWh. A future SPIS project was assessed to have 27 possible synergies and 3 tradeoffs that impact achieving sustainable development goals (SDGs). The participation of stakeholders, along with local farmers, in discussions about adapting SPIS projects will help ensure the sustainability of the application and the acceptance of the technology. The findings of this study introduced new insights and understanding of the critical aspects of solar PV irrigation system applications.
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