Development of a Computer-Assisted Personal Interviewing (CAPI) Methodology to Assist the Photovoltaic Design Process

Samuel Roberto Moraes, João Murta-Pina, Miguel Santos, Tiago C. Pereira, Fernando Monteiro, Ricardo Matos, Filipe Matos, Diogo Pinto, Francisco Oliveira, Sofia Correia, André Teixeira Bento Damas Mora

Research output: Contribution to journalConference articlepeer-review

22 Downloads (Pure)


Computer-Assisted Personal Interviewing (CAPI) is a well-known methodology in the development of social surveys. In this work, CAPI is used to guide the flow of a questionnaire aiming for the acquisition of data and information fundamental to optimise a photovoltaic (PV) design. The questionnaire is implemented in an app, developed in the frame of the PV SPREAD project, which is aimed to support the supplier/designer of PV plants during all the stages of its development. To demonstrate how different choices of a client, specified during the interview with the designer, will have distinct economic results, two configurations are presented. In the first, the system is_allowed to determine and use the optimum inclination angle of the modules, while in the second a low angle is selected by the client, to comply with aesthetic restrictions. The first configuration improves naturally the internal rate of return of the investment, as this is the optimising cost function, but the system allows comparing both ones. The CAPI methodology and its use in the context of PV design show to be a relevant tool to support designers and to provide more informed investments to clients.

Original languageEnglish
Article number00021
JournalE3S Web of Conferences
Publication statusPublished - 10 Feb 2021
Event2020 International Conference on Renewable Energy, ICREN 2020 - Virtual, Online, Italy
Duration: 25 Nov 202027 Nov 2020


Dive into the research topics of 'Development of a Computer-Assisted Personal Interviewing (CAPI) Methodology to Assist the Photovoltaic Design Process'. Together they form a unique fingerprint.

Cite this