Solid
Including wood, charcoal, coal, peat, grasses, animal dung, husks/shells, sawdust, stalks/leaves, Municipal Solid Waste and gel fuels
option_23
option_35
option_26
option_24
option_22
Liquid
Including fossil oils such as kerosene, diesel, petrol and paraffin as well as plant-based fuels including bioethanol and biodiesel
option_23
option_22
option_33
option_35
Gas
Including natural gas, gas synthesised from fossil fuels and gas derived from plant material or animal matter including biogas
option_23
option_22
option_24
option_26
Electricity
Including Alternating and Direct Current supply generated or converted from any renewable or non-renewable energy source, either used directly or via storage media such as batteries.
option_36
option_21
Direct Conversion
Where an energy supply is converted directly from a natural energy source such as light, or potential or kinetic energy of water, into the energy service required, such as hot or pumped water
option_36
option_23
option_26
option_24
Mechanical Power
Physical mechanical power typically in the form of torque on a rotating inertial mass which can be used for a variety of direct and indirect activities such as crushing, turning, pumping, generating etc
option_21
option_22
option_23
option_24
option_35
option_36
option_26