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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
Participants 170
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Geothermal (renewable or not??)
- A USA agency estimates total energy available to be ~15,000 x energy in all known oil and gas reserves in the world
- always be available when it is needed
- not always available where it is needed

Geothermal Power
- steam brought up from reservoir
- directed past turbines
- shaft of turbine turns generator
- spinning magnets of generator convert rotational energy into electricity
- depleted steam condensed and re injected

Direct heat energy: geothermal
- Where sufficient accessible geothermal energy is present it can be used for:
- heating buildings (individually or whole towns)
- raising plants in greenhouses
- drying crops
- heating water (ie fish farms)
- industrial processes (ie pasteurizing milk)
Geothermal heat pumps
- shallow ground (upper 3m) maintains a temperature between 10 -16°C
- in certain countries this is:
- warmer than the air above it in winter
- cooler than the air above it in summer
- heat exchange occurs via:
- a system of pipes buried in shallow ground
- a fluid (water and anti freeze) circulates through the pipes to absorb or relinquish heat within the ground
