*2.6. Case Study*

In this work, Camasusu Island, Masbate (12.2 ◦N; 123.2 ◦E) and Lubang Island, Occidental Mindoro (13.8 ◦N; 120.1 ◦E) in the Philippines are selected as case studies to represent small and big islands, respectively. The daily water demand profiles were estimated from the work of the California Public Utilities Commission [57], with monthly variations based on Griffin and Chang [58]. The resulting water demand profiles were scaled to meet the 20-L water requirement per day per capita estimate by the World Health Organization [56]. Camasusu and Lubang Island have a population of 532 and 18,556, respectively, which yields an annual water demand of 3.88 <sup>×</sup> <sup>10</sup><sup>3</sup> m3/y and 1.35 <sup>×</sup> <sup>10</sup><sup>5</sup> <sup>m</sup>3/y. This

estimate includes water for drinking and activities such as bathing and laundry [56]. The normalized water demand profile is shown in Figure 7. The details regarding demand and generation profiles of the energy components are given in Appendix E.

**Figure 7.** Normalized water demand profile. This is scaled up to match the annual demand. The left panel shows the daily average demand in hourly resolution, while the right panel shows the monthly variation over a year.
