2.3

2.3

**Embodied Energy**

The total energy required to produce a product.

**Energy utilization**

The method with which energy is used

* Total energy consumed in production (cradle to \[factory\] gate) and throughout the lifecycle of a product (cradle to grave)
* It is the sum of all energy needed to produce a product or service.
* It is highly useful to calculate how successful/effective a product or service produces or saves energy.

Distributing Energy: National and International Grid Systems

*An electrical supply distribution network that can be national or international. International grids allow electricity generated in one* country to be used in another.

Energy Distribution

The method with which energy is transported from a source to where it is used.

Local Combined Heat and Power (CHP)

 *A system that simultaneously generates heat and electricity from either the combustion of fuel, or a solar heat collector.*

**Individual energy generation**

*The ability of an individual to use devices to create small amounts of energy to run low-energy products.*

**Quantification of carbon emission**

Defining numerically the carbon emissions generated by a particular product