Photovoltaic system for energy sustainability at La Libertad Municipal Palace
DOI:
https://doi.org/10.70577/cieninter.v4i4.159Keywords:
photovoltaics; public building; self-consumption; distributed generation; prefeasibility; energy sustainability.Abstract
Integrating photovoltaic generation into public buildings requires linking solar resources to electricity consumption, connection conditions, and the ability to use the energy generated. This study developed a prefeasibility proposal for La Libertad Municipal Palace through the reanalysis of six monthly records from March to August 2025, analytical sizing, and a complementary technical literature review. Total consumption was 23,393 kWh, with a monthly mean of 3,898.83 kWh and a sample coefficient of variation of 26.08%. Using the specific yield of 4.97 kWh/kWp/day reported in the initial information, supplying 60% of mean consumption requires at least 29 modules rated at 550 Wp. An alternative comprising 30 modules, 16.50 kWp, two equivalent strings, and a candidate 15 kW inverter was developed. Its reference generation would be 29.93 MWh/year, whereas supplying 60% of the highest-consumption month requires 36 modules and 19.80 kWp. Under hypothetical self-consumption fractions of 60–100%, the 16.50 kWp alternative would replace 17.96–29.93 MWh/year of grid electricity, corresponding to an operational reduction of 2.00–3.33 t CO₂eq/year using Ecuador’s official 2025 interconnected-grid emission factor. The proposal identifies favorable conditions for further assessment, but final selection requires verification of electricity bills, roof conditions, interval load data, and the connection point. Results are prefeasibility scenarios rather than measurements from an installed system.
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