1863-First electric light displayed 1888-Tamworth first to have street

lighting, Penrith, Moss Vale, Broken Hill and Redfern soon followed

1894-Melbourne first city to operate via a power station

1904-Pyrmont power station built generating power for people of Sydney

1923 Northern Territory supplied with power

1927-34% households wired

Generation in power stations (primary)↓

High voltage transmission lines transfer electricity from generators to metropolitan/regional areas

(secondary)↓

Retailers purchase electricity & distribute it to consumers (tertiary)

9.68 million electricity connections 2 million gas connections Transmission & distribution comprises

884 000 circuit km Annual electricity generation of

226 600 GWh annually....enough to power...

18 333 000, 2 storey homes

Total Hydro-electric generation in NSW is 30.2 GW annually, which

equates to....

Enough energy to power 2.56 million 2 storey households or...

The city of Perth

On average, a household within Sydney consumes 8 250 kw hours of electricity annually

On average, households of New South Wales (excluding Sydney), consume 7 790 kw hours of electricity annually

=

10% variation in consumption habits

12 144 square km 4 284 379 people 352 people per square km

Compared to Los Angeles.... 10 518 square km 10.1 million people 962 people per square km

Outdated: underground power cables now used rather than power poles; however existing power poles are not being replaced by underground cabling

Power poles: 1 branch can knock out thousands of homes- Inner west 2008 (4000 homes)

Emissions created in generation, especially from 18 067 500 tonnes of coal burned for electricity annually

Sydney’s population as of yesterday was 4,284,379

Sydney’s projected population increase within 25 years: 1.1 million....

= 640 000 new homes, 500 000 new jobs 7 500Ha of new industrial land, 6.8

million sq m of commercial floor space, 3.7 million sq m retail floor space

Housing, commercial and industrial demand

↓Decreased area

↓Expansion of city

↓The need for new power sources

Solar Power generation: 1 square km (1 million square m)

=138 football fields

= 146 000 000 kw hours per annum

= (12 167, 2 storey homes)