Solar Power

1
Solar Power

• Steve Smith
• Vivero de Las Casicas

2
What

• Solar Hot Water
• Solar Electricity

3
O Level Physics

• Volts
• Amps
• Watts Volts Amps
• Frequency
• AC
• DC
• Specific Gravity
• Photovoltaic

4
Once upon a time

• There was once a poor, ignorant peasant farmer
  who wanted to buy a farm

5
Once upon a time

• So, believing the assurances of the government he
  bought one without mains electricity

6
Once upon a time

• So, believing the assurances of the government he
  bought one without mains electricity
• (which just goes to show how stupid and ignorant
  he was)

7
Once upon a time

• And so for 3 years he got through a series of
  generators and a lot of money to provide
  electricity for just a few hours a day
• (blowing up several washing machines and
  uncountable light bulbs on the way)

8
Once upon a time

• This made him a very sad, poorer peasant but
  perhaps a little less ignorant (at least about
  generators)

9
Once upon a time

• Then one day along came simple, inexpensive,
  solar power system

10
Once upon a time

• From one day to the next he had a bountiful
  supply of clean, free, electricity 24 hours a day

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Once upon a time

• This made our simple peasant very, very happy,
  eventually a lot less poor, and with every
  expectation of living happily every after.

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Why

• 320 days of sunshine per year
• Ecologically friendly
• Reliable
• Clean
• Free energy
• Increasingly cheaper to install
• Low maintenance

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Why Not?

• Building Licence for Panels
• High cost of installation
• High cost of upgrade
• Space occupied
• Noise

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Components of a Solar System
15
Grid Tie System
16
Hybrid System
17
Sizing and Installation

• Electricity Usage
• Number of Panels
• Size of Battery Pack
• Capacity of Inverter/Charger
• Location and Aspect of Panels
• Security

18
Sizing and Installation

• Electricity Usage
• Number of Panels
• Size of Battery Pack
• Capacity of Inverter/Charger
• Location and Aspect of Panels
• Security

• 5kw/day 3kw max
• 8 _at_ 250v DC
• 8 _at_ 6v / 400 amp DC
• 4kw AC/ 60 amp DC
• South South East / 37 degrees

19
Back to O Level Physics

• Volts
• Amps
• Watts Volts Amps
• Frequency
• AC
• DC
• Specific Gravity
• Photovoltaic

20
More Information

• http//solarelectricityhandbook.com

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The Future

• Better Batteries
• Grid Tie Feed-in
• More sensitive Panels
• More low wattage appliances

22
Solar Power

• Questions?