1.6 Power considerations

Figure 1-7. ECOSAN toilet system ("Waterless toilet system product information; Ecosan dry sanitation toilet" , 2021)

1.5.3 Hand washing considerations

Hand washing system is stalled outside of the toilet. The functions of this outdoor hand washing system is shown in the pictures below (figure 1-8). Combined with the rainwater system, the water pipe will connect to the drinkable filtered water tank. Under the pool of hand washing has a grey water tank, which can collect the waste water used for hand washing to do the watering. The use of the grey water will be highlighted in the landscape part in the following as well.

Figure 1-8. Hand washing systems

1.6 Power considerations

In the day time, the house takes advantage of the passive design to provide the enough natural lights, which will be explained in the part of architecture. By considering other

demands for electricity, such as simple medical equipment and guest speaker mobile phone charging, solar panels will be suggested to be used in the “Women’s House” . An entire solar power system is incorporated into one compact package, which is efficient and easy to carry (figure 1-9).

Figure 1-9. Mobile Solar Panel Retrieved from https://www.latestbuy.com.au/powertech-12v-folding-solar-panel

For the simple cooking use, the solar cooker will be suggested (figure 1-10). The solar cooker works similar to a burning glass. Approximate parallel sun rays are reflected in the cooker’s focal point. Due to the high concentration of the sun ` s rays, the temperatures in the focal point are extremely high so that it allows to cook or fry a meal by placing a pot here. The pivoting frame makes it easy to point the solar cooker in any direction of the sun. Local women can use this solar cooker to make simple lunch and boiling water when they have a lecture at the “Women’s House” .

Figure 1-10. Solar cooker system Retrieved from https://brainly.in/question/2954002

At the night time, only the emergency lights will be provided due to all of the activities being held during the daytime. The solar lantern would be the best solution (image 1-1). It contains a solar cell, Ni-Cad rechargeable battery, LED light and photoresistor. The battery can be charged during the day through the sun rays and activated at night for emergency light use. The budgets for power systems will be estimated in the part of construction BOQ sections.

Image 1-1 Solar lantern (Herscowitz, 2021)