Working Paper Article Version 2 This version is not peer-reviewed

Exploring the Benefits of Photovoltaic Non-Optimal Orientations in Buildings

Version 1 : Received: 30 April 2021 / Approved: 5 May 2021 / Online: 5 May 2021 (12:18:11 CEST)
Version 2 : Received: 22 May 2021 / Approved: 24 May 2021 / Online: 24 May 2021 (10:14:20 CEST)
Version 3 : Received: 30 May 2021 / Approved: 31 May 2021 / Online: 31 May 2021 (10:47:40 CEST)

How to cite: Sánchez, E.; Ordóñez, Á.J.; Sánchez, A.; García Ovejero, R.; Parra-Domínguez, J. Exploring the Benefits of Photovoltaic Non-Optimal Orientations in Buildings. Preprints 2021, 2021050043 Sánchez, E.; Ordóñez, Á.J.; Sánchez, A.; García Ovejero, R.; Parra-Domínguez, J. Exploring the Benefits of Photovoltaic Non-Optimal Orientations in Buildings. Preprints 2021, 2021050043

Abstract

AAs Solar Photovoltaics in buildings reaches maturity, grid integration and economic yield are topics of greater interest. The price reduction of photovoltaics has driven a shift in support policies of PV installations in buildings from the feed-in-tariff model, to net-metering and net-billing schemes. The traditional design of photovoltaic installations has considered the optimal orientation of photovoltaic modules to be that which yields the maximum annual energy production. The influence of the consumption patterns and the hourly-variable electricity prices implies that this traditional optimal design might not be the most profitable. Using a full-year dataset for a residential installation, alternative installations using canopies and modules attached to the façades are simulated. Evaluating these alternative installations against a traditional optimal installation, under the Spanish regulation, it is found that the canopy and façade installations offer comparable economic performance despite having a 23% and 39% lower energy yield respectively. The economic evaluation under the new electricity tariffs in Spain shows a better profit for PV self-consumption, reducing by more than 2 years the time of return on investment. The analysis of different alternatives for an industrial PV during the design stage, has allowed us to identify several benefits for these orientations.

Subject Areas

Solar Photovoltaics, PV Self-consumption, Building-integrated photovoltaics (BIPV), Build-ing-applied photovoltaics (BAPV), PV orientations, PV Grid-integration

Comments (1)

Comment 1
Received: 24 May 2021
Commenter: Esteban Sánchez Hernández
Commenter's Conflict of Interests: Author
Comment: Revised version after peer review round 1
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