how this affects the transmission of the energy.

The way that energy changes into different forms and

ENERGY TRANSFORMATIONS IN BUILDINGS

We know we must feed our own body with food, essentially a source of chemical energy. This energy is transformed into numerous other forms

• chemical, when we store fat
• electricity, when our nerves send messages either to or from the brain
• heat, noticeable when we perspire
• sound, when we speak
• mechanical, when muscles contract causing movement of our bodies

With a building we can have multiple energy feeds

• chemical in the form of fuels such as coal, oil, gas, wood, paper
• electricity, which may in turn have come from a variety of primary energy sources such as chemical sources, nuclear, hydro, wind, tidal,

We can have even more transformations of these feeds into other forms

• chemical, when we charge batteries
• electricity, transformed to other voltages for communication and control systems
• heat, for central heating and hot water systems
• light, for illumination when night falls
• sound, from radios, TVs etc
• mechanical, from motors driving dishwashers, tumble dryers, hovers etc