1. Asociación de Empresas de Energías Renovables (APPA). (2016). El resultado de la subasta eléctrica añade más incertidumbre al sector removable (15 Jan.). Retrieved from https://www.appa.es/el-resultado-de-la-subasta-electrica-anade-mas-incertidumbre-al-sector-renovable
2. Bellini, E. (2017). Spanish PV could go merchant but market must change. PV Magazine (3 Nov.). Retrieved from https://www.pv-magazine.com/2017/11/03/spanish-pv-could-go-merchant-but-market-must-change
3. British Petroleum. (2018). Statistical Review of World Energy. Retrieved from https://www.bp.com/en/global/corporate/energy-economics/statistical-review-of-world-energy.html
4. Carvalho Figueriredo, N., and Pereira da Silva, P. (2018). The price of wind power generation in Iberia and the merit-order effect. International Journal of Sustainable Energy Planning and Management 15: 21–30.
5. Ciarreta, A., Paz Espinosa, M., and Pisarro-Irizar, C. (2014). Is green energy expensive? Empirical evidence from the Spanish electricity market. Energy Policy 69: 205-215. https://doi.org/10.1016/j.enpol.2014.02.025