Clip description Keywords
Antarctica opens green polar base
Antarctica opens green polar base

Duration: 01:43

The effect of carbon emissions on global warming has prompted governments to look for alternative, cleaner energy sources instead of fossil fuels. Now the world's first zero-emission polar research station has opened in Antarctica.

 
Britain is world leader in offshore wind power
Britain is world leader in offshore wind power

Duration: 01:56

Blustery Britain is the world's biggest producer of electricity from wind power out at sea, with the largest wind farm site off Skegness.

 
Decommissioning a nuclear power station
Decommissioning a nuclear power station

Duration: 01:39

The process of decommissioning the Dungeness 'A' nuclear power station is discussed.

 
Domestic wind turbines may use more power than they generate
Domestic wind turbines may use more power than they generate

Duration: 01:15

Domestic wind turbines have been found to produce only fractional amounts of power.

 
Electricity generation and transmission
Electricity generation and transmission

Duration: 00:34

An explanation of the process by which electricity is generated and transmitted to our homes, including a discussion about efficient transmission.

 
Generating high voltages using a Wimshurst machine
Generating high voltages using a Wimshurst machine

Duration: 06:11

A practical demonstration of a Wimshurst machine being used to generate high voltages.

 
How lightning is formed
How lightning is formed

Duration: 04:58

A laboratory demonstration shows how static charges can be built up and discharged through lightning.

 
Hydrogen fuel cells
Hydrogen fuel cells

Duration: 02:04

An explanation of hydrogen fuel cells and their advantages over fossil fuels.

 
Infrared
Infrared

Duration: 03:14

An infrared antenna array that can convert infrared energy to electricity, even on cloudy days and at night.

 
Lack of government subsidies threatens renewable resources
Lack of government subsidies threatens renewable resources

Duration: 02:28

A survey of renewable energy projects in Northern Ireland. A lack of government subsidies is hindering wind power and tidal power has so far been neglected.

 
Lightning and the Wimshurst machine
Lightning and the Wimshurst machine

Duration: 03:20

Jim Al-Khalili explains how both lightning and the aurora are formed by using a Wimshurst machine to conduct three quarters of a million volts through his body.

 
Nikola Tesla's alternating current demonstration
Nikola Tesla's alternating current demonstration

Duration: 01:56

Jim Al Khalili explains how in 1891, Nikola Tesla used a Tesla coil to pass three quarters of a million volts at high frequency through his own body.

 
Pope installs solar panels
Pope installs solar panels

Duration: 00:49

Solar panels are being installed on top of the papal audience hall at Vatican City. This will provide power to light, heat and cool the building.

 
Recycling organic waste into electricity
Recycling organic waste into electricity

Duration: 01:32

Methane gas from organic waste can be used to generate electricity.

 
Schools aim to run on renewable energy
Schools aim to run on renewable energy

Duration: 01:34

A dozen schools in Okehampton have secured £250,000 for a project to generate their power from renewable sources.

 
Wind farms (pt 1/3)
Wind farms (pt 1/3)

Duration: 01:28

The proportions of the UK's electrical energy provided by different sources and focuses on the capacity for wind to provide 20%.

 
Wind farms (pt 2/3)
Wind farms (pt 2/3)

Duration: 05:00

The limitations of wind turbines to generate a large proportion of the UK's electricity.

 
Wind farms (pt 3/3)
Wind farms (pt 3/3)

Duration: 03:46

How sites for onshore wind farms are selected showing how the RSPB work to minimise their impact.

 
Wind turbine blades collapse
Wind turbine blades collapse

Duration: 02:01

Residents near Lincolnshire's newest wind farm have been reassured by manufacturers that it is safe following unexplained damage to a wind turbine.

 

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