What Are Electricity Substations?

Australia generates electricity from several energy sources. Coal fired power stations, oil, natural gas, hydro power and solar power among other renewables are all used to produce electricity. This is called the energy mix. But once generated in a power station, this electricity isn’t ready to be sent to homes and businesses. The appliances and devices that we use require a given voltage of electricity to run or charge safely. Enter the electricity substation.

In Australia, there are countless substations that are all connected to at least one power station across the country. At some point, the electricity flowing from these substations is connected with energy flowing from other substations. This is known as the grid. Historically, substations were connected to only one power station so it was easy to track where electricity in a given area had been produced. With today’s system it is impossible to track electricity sourced from renewable energy from electricity generated by non-renewable sources. A flow of electrons, once in the grid, become anonymous, so to speak.

A substation’s main purpose is to convert the voltage of an electric current from high to low, or from low to high, using a device called a transformer. Equipment that is commonly found is substations includes switching, protection, control equipment, transformers, and often power factor correctors and voltage regulators. An electricity substation may be located indoors or outdoors, above ground or below ground and varies greatly in size or capacity.

Skyscrapers may host several indoor substations (typically in the basement) while other substations may take up whole buildings for themselves. Electricity may flow through several substations before it reaches an end consumer.

The Author

I took an interest in the Australian energy sector close to ten years ago and since then have monitored the trends, technologies and direction of the Australian Energy Market. I was drawn to the Australian solar market in 2008 and since then have worked heavily in the field. I am partnered with national and international solar energy companies, from manufacturers of solar panel and inverter technology, online software developers that introduce tools to quote, monitor and manage solar power systems and media organisations who like myself, closely monitor the solar and renewable energy sector.

×

Mel from North Ryde, New South Wales asked for 3 quotes for solar 2 months ago!

Paul from Doolandella, Queensland asked for 3 quotes for solar 2 months ago!

Stephanie from Footscray, Victoria asked for 3 quotes for solar 2 months ago!

Peter from Dawesville, Western Australia asked for 3 quotes for solar 2 months ago!

Helen from Boynewood, Queensland asked for 3 quotes for solar 2 months ago!

michael from Moorebank, New South Wales asked for 3 quotes for solar 2 months ago!

v from Jerrabomberra, New South Wales asked for 3 quotes for solar 2 months ago!

Jim from Ranelagh, Tasmania asked for 3 quotes for solar 2 months ago!

Jann from Ashmore, Queensland asked for 3 quotes for solar 2 months ago!

Bryn from Keperra, Queensland asked for 3 quotes for solar 2 months ago!

Tracey from Aspley, Queensland asked for 3 quotes for solar 2 months ago!

Nancy from Reservoir, Victoria asked for 3 quotes for solar 2 months ago!

George from Ingle Farm, South Australia asked for 3 quotes for solar 2 months ago!

Greg from Taree, New South Wales asked for 3 quotes for solar 2 months ago!

Shane Keeffe from Birkdale, Queensland asked for 3 quotes for solar 2 months ago!

Haroon from Pemulwuy, New South Wales asked for 3 quotes for solar 2 months ago!

Herry from Pagewood, New South Wales asked for 3 quotes for solar 2 months ago!

Michelle from Aspendale, Victoria asked for 3 quotes for solar 2 months ago!

Donna from Cranbourne, Victoria asked for 3 quotes for solar 2 months ago!

George from Cairnlea, Victoria asked for 3 quotes for solar 2 months ago!