Electricity consumption thresholds for apartments and the required PV roof-surface under constraint conditions in Lima

Valdivia-Sisniegas R.H.; Buleje-Orihuela M.D.P.; Quispe-Lerma K.N. · Informes de la Construccion (2026) · DOI: 10.3989/ic.7236

Resumen

This study aims to estimate the photovoltaic rooftop area required for apartments in the city of Lima, Peru; applying the annual yield formula from the International Energy Agency (IEA). A key challenge identified is the lack of standardized electricity consumption data by housing typologies. Using data from the Residential Energy Consumption and Usage Survey (ERCUE, 2009-2021) and the thresholds of the Social Electric Compensation Fund (FOSE, 2001/2022), standard consumption levels for 1-, 2-, and 3-bedroom apartments were determined. The results indicate that apartments with 1 or 2 bedrooms and lower consumption thresholds are suitable for single-panel PV solutions due to reduced space requirements, whereas 3-bedroom apartments with higher energy demand pose design challenges for rooftop installations. Under constraint conditions, PV rooftop areas may consider a tolerance range of -15.83 to 11.46 compared to specific panel sizes. These findings support the early-stage architectural design of energy-efficient multifamily buildings.

Instituciones: Universidad Tecnológica del Perú