Where there is no other source of electrical power available, or where the cost of installing mains electrical power is too high.
- Where other sources of electrical power are not reliable – i.e. when power cuts are an issue and a solar system can act as a cost effective contingency,
- When a solar power system is the most convenient and safest option – installing low voltage solar lighting in a garden, for instance.
- You can become entirely self sufficient with your own electrical power.
- Once installed, solar power provides virtually free power without damaging the environment.
- The power of the sun at your location at different times of the year
- How much energy you need to generate
- How good your site is for capturing sunlight.
To create a comparison with alternative power sources, you will often need to calculate a payback of costs over a period of a few years in order to justify the cost of a solar electric system.
On all but the most simplest of installations, you will need to carry out a survey on your site and carry out some of the design work before you can ascertain the total cost of installing photovoltaic systems. Don’t panic – this isn’t as frightening as it sounds. It isn’t difficult and it is covered in detail in later chapters.
We can then use this figure to put together a cost justification on your project that can then be compared to the alternatives. Learn how to build a solar panel today!
Useful information home solar power systems:
Useful information photovoltaic systems:
Learn how to build a solar panel: