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Item type:Publication, On the Viability of Reused Vehicle Li-Ion Batteries as PV Storage for High-Altitude Rural Areas: Case Study in Cusco-Peru(Institute of Electrical and Electronics Engineers Inc., 2026-01-01)Recent public interest in sustainability, particularly in energy generation and utilization, has led to a significant rise in the amount of large batteries used day to day. The automotive sector has been notably impacted by this energetic transition toward cleaner energy and the growing demand for batteries, as electric vehicles (EVs) gain increasing market share. A direct consequence of this shift to electromobility is the growing number of batteries that are no longer suitable for high-power or fast-response applications. Instead of disposing of these batteries or relying on an expensive recovery process, this study explores an alternative use to second-life batteries in order to benefit rural communities. In the Andean regions of Peru, rural populations seasonally experience extremely low temperatures and high humidity levels, which can cause health issues. These communities often have inconsistent access to electricity from the national electricity grid, if there is a connection at all. Within this context, the present work proposes the implementation of repurposed battery backed photovoltaic systems, where the energy collected during the day is used to provide indoor heating in rural homes. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Yield and performance analysis of PERC, HIT, and CIGS photovoltaic systems in five Peruvian city-climates(Elsevier, 2026)Latin American cities face challenges in designing and maintaining distributed photovoltaics (PV), with limited multi-year, cross-climate evidence to guide procurement and policy. We present a three-year outdoor evaluation of 1.5 kWp grid-connected PV systems based on Passivated Emitter Rear Cell (PERC), Heterojunction with Intrinsic Thin Layer (HIT), and Copper Indium Gallium Selenide (CIGS) modules installed in five Peruvian cities: Lima (coastal desert), Chachapoyas (tropical montane forest), Arequipa (arid highlands), Tacna (hot desert), and Juliaca (high-altitude Andes). Monitoring followed IEC-61724–1 at one-minute resolution, delivering reference, array, and final yields, capture and system losses, and performance ratio (PR). Diagnostics included electroluminescence (EL) and infrared (IR) thermography. Across all climates, system losses were low and stable (∼0.14–0.31 kWh/kWp/day), highlighting capture losses as the main performance differentiator. HIT modules achieved the most consistent results (PR ≈ 0.83–0.87), sustaining high yields in humid and high-irradiance sites. PERC modules performed reliably in humid/temperate climates but underperformed in arid highlands, where EL/IR revealed early degradation and hotspot formation. CIGS modules remained stable only in the dry desert of Tacna (PR ≈ 0.81); in humid or thermally variable climates, accelerated degradation likely linked to moisture ingress and shading stress reduced PR to ≤ 0.72. The dataset demonstrates how harmonized monitoring and diagnostics can inform technology–climate suitability, O&M standards, and procurement strategies. Results support climate-class specifications—prioritizing HIT in humid/coastal and high-altitude cities, enforcing acceptance tests for PERC in moderate climates, and restricting CIGS to arid sites—thus strengthening reliability assessment and performance-based planning for distributed PV.