How , Why , What.

How determine how many solar energy I need ?

Calculate how many electric energy need use in per day . What components of the system will need the electricity away before it actually reaches the load.

The average sun hours per day can provide how many solar energy ?

Light bulb     60 watt

Exhaust Fan    ? watt 

Wheel & Wheel Lock

Wheels

 http://www.rubicon-trail.com/G-Class/wheels/img/wheels.jpg

Wheels be added to increase the movement of portable toilet that easily moving from place to place .

Wheel Lock

http://i01.i.aliimg.com/photo/v0/1903382137/three_legs_parking_locker_parking_locker_portable.jpg_220x220.jpg

Wheel lock  to holder the wheel .

Sketches

Sketches

Here part of the sketches that try to redesign the portable toilet .

Adjustable Leg

Adjustable Leg

http://www.allproducts.com/handtools/maghin-1/08-adjustable_leg.html

http://www.backyard-design-ideas.com/images/Outdoor_cabinets_adjustable_legs.jpg

Searching some adjustable leg series as the references for study. A stronger and stable adjustable that able support the portable toilet. According the observe , some of the surface floor unbalance especially at the hillside.

Waste Tank

Portable toilet waste tank mould

http://www.diytrade.com/china/pd/7538738/portable_toilet_moving_toilet_waste_tank_mould_OEM.html

Waste will storage in waste tank for few days then the responsibility company will clean the the waste and the portable toilet to make sure toilet system on function.

Geometric Shape

                                              Geometric shape

Using variety of geometric shape as the basic shape for the Portable toilet .

http://voiceofthemonkey.com/geometric-shapes-on-parade/

Rectangle shape for the portable toilet whole body. Triangle for the roof .

Circle for the wheels .

Big rectangle using in water tank and the container to storage the "waste".

Solar system

Solar system

    How solar system work ?

     Transfer the solar energy into electric current ?

    Solar >>>Photons >>>DC electron (batteries) >>>AC Power

http://www.solarpvillinois.com/Solar-PV-System/Solar-PV-Energy.html

PV System

Called as  photovoltaic system . The arrangement of the solar panels is to absorb solar energy change into electric current by transfer DC  to AC power to set up a working system.