1. 1) International Renewable Energy Agency (IRENA) : Avoided Emissions Calculator, https://www.irena.org/Data/View-data-by-topic/Climate-Change/Avoided-Emissions-Calculator
2. 2) 資源エネルギー庁 : “総合エネルギー統計”.
3. 3) Fraunhofer Institute for Solar Energy Systems, ISE : “Photovoltaics report” (2022).
4. 4) K. Toh, T. Saito and T. Suemasu : Jpn. J. Appl. Phys. 50, 068001 (2011).
5. 5) R. Vismara, O. Isabella and M. Zeman : “Photonics for Solar Energy Systems VI” (SPIE, 2016) Vol. 9898, p. 54.