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)
Version 4
: Received: 21 September 2021 / Approved: 22 September 2021 / Online: 22 September 2021 (10:14:35 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. Preprints2021, 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
Sánchez, E.; Ordóñez, Á.J.; Sánchez, A.; García Ovejero, R.; Parra-Domínguez, J. Exploring the Benefits of Photovoltaic Non-Optimal Orientations in Buildings. Preprints2021, 2021050043
APA Style
Sánchez, E., Ordóñez, Á.J., Sánchez, A., García Ovejero, R., & Parra-Domínguez, J. (2021). Exploring the Benefits of Photovoltaic Non-Optimal Orientations in Buildings. Preprints. https://doi.org/
Chicago/Turabian Style
Sánchez, E., Raúl García Ovejero and Javier Parra-Domínguez. 2021 "Exploring the Benefits of Photovoltaic Non-Optimal Orientations in Buildings" Preprints. https://doi.org/
Abstract
As Solar Photovoltaics in buildings reaches maturity, grid integration and economic yield are topics of greater interest. 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. Simulating the energy balances for different annual consumptions, it is found that the canopy and façade installations offer better self-consumption of the PV produced energy, reflected in a 9% higher self-consumption degree using modules on façades and a 5% using canopies. 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 has allowed us to identify several benefits for these orientations, such as an increase in annual energy production of up to 59% over the optimal-producing orientation, that are confirmed after several months of operation.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Received:
22 September 2021
Commenter:
Esteban Sánchez Hernández
Commenter's Conflict of Interests:
Author
Comment:
For a more comprehensive comparison between the alternative PV installations, the energy and economic balances are done between PV installations producing the same annual energy. The study covers an annual range of energy production between 5 MWh and 15 MWh. In addition, the period under study has been shifted to august 2020 – July 2021, comprising electricity prices more representative that the previous version of the paper. The costs have been updated to year 2021 costs.
Commenter: Esteban Sánchez Hernández
Commenter's Conflict of Interests: Author