If we wish to use renewable energy for our home then it would be a good idea to know what our current energy usage is. Basically carry out an audit of your energy usage in order to establish a base point from which to calculate your load requirement for your solar panels and wind power.

The use of passive solar energy in housing involves the placement of the building for optimum benefit, the building design and position of suitable building components to make full use of sunlight for day lighting, passive heating, and/or passive cooling. Apart from saving energy, the primary benefit of a passive solar home is the improved comfort of its occupants.