These numbers are the sort of things I use all the time to calculate the impact of different activities.Contents: - Energy consumption - CO2 emissions - Fuel density and carbon intensity - Passenger travel emission factors - Freight emission factors - UK population - Water energy properties - Greenhouse gases GWP
|World primary energy||141||20.9||57||2.4||6.8 billion|
|UK primary energy||2.47||39.6||109||4.5||62.3 million|
|UK final energy||1.85||29.7||81||3.4|
Primary energy consumption counts fuel used to generate and transmit electricity rather than the electricity itself. The final energy consumption is what is actually delivered.
This data is unadjusted for the weather - In 2010 the UK was rather cold.
Emissions due to energy
From IEA Key World Energy Statistics (data for 2009)
Total CO2 emissions
|Electricity*||462||gCO2/kWh (for 2015)|
|Electricity** (DUKES)||332||gCO2/kWh (for 2015)|
|Electricity (DUKES)||400||gCO2/kWh (for 2014)|
|Heating oil (HHV)||268||gCO2/kWh|
|Petrol (biofuel blend)||2194||gCO2/litre|
|Diesel (biofuel blend)||2584||gCO2/litre|
* CO2 emissions due to electricity vary from year to year depending on which power stations are used.
|Average diesel car||182|
|Average petrol car||191|
|Average hybrid car||129|
|Airline domestic||298||Includes non-CO2 radiative forcing|
|Airline short haul (economy)||166|
|Airline long haul (economy)||152|
Souce as above. This data varies from year to year, for example as vehicles become more efficient.
Your car may be more efficient than the average:
|mpg||l/100km||petrol gCO2/mile||diesel gCO2/mile|
NB These are UK gallons
To convert between l/100km and mpg - use 283/x
Freight by tonnage (100% laden)
|Air short haul||2313|
|Air long haul||1279|
Freight by distance
From DeFRA as above
|latent heat vaporisation||2260||kJ/kg|
|latent heat vaporisation||0.628||kWh/kg|
|20 year||100 year|
The GWP is a measure of the global warming impact of a gas relative to CO2 (by mass, comparing 1 kg of the gas with 1 kg of CO2). This depends on the timescale as well because different gases have different lifetimes in the atmosphere. For example methane has a half life of about 12 years and over a longer timescale it has less effect.