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Energy and the Environment
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Introduction
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Transport Fuels5 Topics
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Energy Sources: Fossil Fuels8 Topics
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Energy Sources: Renewables10 Topics
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Electricity10 Topics
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Energy Sources: Nuclear6 Topics
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Demand Response6 Topics
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Energy/Emissions Policy15 Topics
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What is Policy ?
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Policy Development
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Energy Policy
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Energy Priorities
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What is a Carbon Price ?
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Emissions Trading
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Carbon Tax
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Carbon Tax Vs Carbon Trading
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Saudi Arabia National Renewable Energy Program
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Large scale Renewable Energy Target
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Small scale Renewable Energy Scheme
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Global Warming Potential (GWP)
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Saudi Arabia Emissions Profile
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Methods for Measurement
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Carbon Pricing Mechanism
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What is Policy ?
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Energy Economics2 Topics|1 Quiz
Lesson Progress
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415 V distribution lines
Voltage | 415 V |
Number of conductors | 4 |
Type and number of insulators | Small pin insulators |
Height of powerline | Commonly 6 to 7 metres (can be as low as 4.5 metres) |
11 kV lines
Voltage | 11,000 V (11 kV) |
Number of conductors | 3 bare conductors |
Type and number of insulators | Single disc insulator or a pin insulator made of 3 smaller discs |
Height of powerline | 8 to 9 metres above ground (11 kV lines are usually mounted 2 metres above 415 V lines) |
19 kV SWER (single wire earth return) lines
Voltage | 19,000 V (19kV) |
Number of conductors | Single bare wire conductor |
33 kV lines
Voltage | 33,000 V (33kV) |
Number of conductors | 3 bare wires |
Type and number of insulators | 3 disc insulators or pin insulators made of 3 smaller discs |
Height of powerline | 10 to 20 metres |
66 kV lines
Voltage | 66,000 V (66 kV) |
Number of conductors | 3 bare active wires |
Type and number of insulators | 5 or 6 disc insulators or a post insulator made of a stack of 12 smaller discs |
Height of powerline | 10 to 20 metres |