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Semestre Económico
Print version ISSN 0120-6346On-line version ISSN 2248-4345
Abstract
ARISTIZABAL, Carlos E. and GONZALEZ, José L.. Photovoltaic solar energy in educational institutions: case study ITM campus Robledo. Semest. Econ. [online]. 2021, vol.24, n.57, pp.30-57. Epub Jan 19, 2022. ISSN 0120-6346. https://doi.org/10.22395/seec.v24n57a2.
The work shows a technical, environmental and economic analysis of the integration of photovoltaic solar technology, with the interconnected network that currently supplies electricity to the Metropolitan Technological Institute, Robledo campus, for the 2015-2019 period , and considering three scenarios; 80,000, 100,000 and 120,000 kWh of monthly demand covered with this renewable source. The installation, using polycrystalline solar modules, avoids the emission of large amounts of CO2. For the 80,000 kWh / month system, a 75,79 % reduction in greenhouse gasses emissions associated with electricity consumption from the national interconnected system is achieved. With 100,000 kWh / month, a reduction of 95,41 % is achieved and with 120,000 kWh / month, a reduction of 95,58 %. In economic terms, the financial indicator IRR (internal rate of return) is calculated for a time horizon of 5 years and considering the savings in the purchase of electricity as income. The best scenario would be 100,000 kWh / month, since this presents the highest IRR, initial investment, lower installation and maintenance costs, while that of 120,000 kWh / month presents a lower IRR and higher operating costs.
JEL CLASSIFICATION:
I23, O13, Q42, Q56
CONTENTS:
Introduction; 1. Why photovoltaic solar energy (PV) ?; 1.1 Technologies available for PV systems; 2. Considerations on the design of a photovoltaic system without storage, for the generation of electrical energy; 3. Conditions for the design of a photovoltaic system for the generation of electrical energy at the ITM; 4. Electricity consumption in the ITM campus Robledo; 5. Conceptual design and technical, economic and environmental pre-feasibility analysis; Conclusions; References.
Keywords : Techno-economic analysis; renewable energy; photovoltaic system; carbon footprint; university.