Solar energy

• Advantages

  • once constructed, running costs are very low
  • produce no waste or pollution
  • energy is usually generated near where it will be used, keeping distribution costs low
• Disadvantages

  • can’t function at night
  • photovoltic (PV) cells are very expensive but they are getting cheaper
• Potential to contribute to energy security

  Each minute of the day, it delivers enough energy to meet global demand for a whole year