# Lemonthyme Power Station

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Lemonthyme_Power_Station
> Markdown URL: https://mediated.wiki/source/Lemonthyme_Power_Station.md
> Source: https://en.wikipedia.org/wiki/Lemonthyme_Power_Station
> Source revision: 1353976160
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

Dam in North-western Tasmania

Parangana Dam Interactive map of Parangana Dam Country Australia Location North-western Tasmania Coordinates 41°37′48″S 146°13′12″E / 41.63000°S 146.22000°E / -41.63000; 146.22000 Purpose Power Status Operational Opening date 1968 (1968) Owner Hydro Tasmania Dam and spillways Type of dam Embankment dam Impounds Mersey River Height 53 metres (174 ft) Length 189 metres (620 ft) Dam volume 382 thousand cubic metres (13.5×10^6 cu ft) Spillways 1 Spillway type Uncontrolled Spillway capacity 2,093 cubic metres per second (73,900 cu ft/s) Reservoir Creates Lake Parangana Total capacity 14,820 megalitres (523×10^6 cu ft) Catchment area 715 square kilometres (276 sq mi) Surface area 11.4 hectares (28 acres) Lemonthyme Power Station Coordinates 41°36′14″S 146°08′19″E / 41.60389°S 146.13861°E / -41.60389; 146.13861 Operator Hydro Tasmania Commission date 1969 (1969) Type Run-of-the-river Hydraulic head 139 metres (456 ft) Turbines 1 x 54 MW (72,000 hp) Fuji Francis turbine Installed capacity 54 megawatts (72,000 hp) Annual generation 313 gigawatt-hours (1,130 TJ) Website hydro.com.au/energy/our-power-stations/mersey-forth [1]

The **Lemonthyme Power Station** is a [run-of-the-river](/source/Run-of-the-river_hydroelectricity) [hydroelectric](/source/Hydroelectric) [power station](/source/Power_station) located in north-western [Tasmania](/source/Tasmania), Australia. It is the fourth station in the [Mersey](/source/Mersey_River_(Tasmania))–[Forth](/source/Forth_River_(Tasmania)) run-of-river scheme that comprises seven hydroelectric power stations and one [mini-hydro](/source/Mini-hydro) station.

## Technical details

The Parangana Dam forms Lake Parangana by damming the [Mersey River](/source/Mersey_River_(Tasmania)). Water from the lake is diverted west to Lemonthyme Power Station via a 6.5-kilometre (4.0 mi)-long tunnel, followed by a 1.6-kilometre (0.99 mi) single surface [penstock](/source/Penstock).[2] The water then runs through the power station, and is discharged into the River Forth, then down to Lake Cethana.

The power station was commissioned in 1969 by the [Hydro Electric Corporation (TAS)](/source/Hydro_Tasmania). It has one [Fuji](/source/Fuji_Heavy_Industries) [Francis](/source/Francis_turbine) [turbine](/source/Water_turbine), with a generating capacity of 54 megawatts (72,000 hp) of electricity. The station output, estimated to be 313 gigawatt-hours (1,130 TJ) annually,[*[citation needed](https://en.wikipedia.org/wiki/Wikipedia:Citation_needed)*] is fed to [TasNetworks](/source/TasNetworks)' transmission grid via two 3-phase 11 k[V](/source/Voltage)/220 kV [Siemens](/source/Siemens) generator transformers to the outdoor switchyard.[3]

Although much of the water from Lake Parangana travels the approximately 8 km to the Lemonthyme Power Station (which discharges into the River Forth), some water is allowed to continue down the Mersey River for environmental reasons, after running through the [Parangana mini hydro station](/source/Parangana_Power_Station).

## See also

- [Australia portal](https://en.wikipedia.org/wiki/Portal:Australia)
- [Renewable energy portal](https://en.wikipedia.org/wiki/Portal:Renewable_energy)
- [Water portal](https://en.wikipedia.org/wiki/Portal:Water)

- [List of power stations in Tasmania](/source/List_of_power_stations_in_Tasmania)

- [List of run-of-the-river hydroelectric power stations](/source/List_of_run-of-the-river_hydroelectric_power_stations)

## References

1. **[^](#cite_ref-ancold_1-0)** ["Register of Large Dams in Australia"](https://web.archive.org/web/20131212120804/http://www.ancold.org.au/wp-content/uploads/2012/10/Dams-Australia-2010-v1-for-website.xls). *Dams information*. [Australian National Committee on Large Dams](/source/Australian_National_Committee_on_Large_Dams). 2010. Archived from [the original](http://www.ancold.org.au/wp-content/uploads/2012/10/Dams-Australia-2010-v1-for-website.xls) (Excel (requires download)) on 12 December 2013. Retrieved 23 June 2015.

1. **[^](#cite_ref-2)** ["Mersey - Forth"](https://www.hydro.com.au/energy/our-power-stations/mersey-forth). *Energy*. [Hydro Tasmania](/source/Hydro_Tasmania). Retrieved 3 July 2015.

1. **[^](#cite_ref-3)** ["Lemonthyme Power Station: Technical fact sheet"](https://www.hydro.com.au/docs/default-source/clean-energy/our-power-stations/power-station-fact-sheets/lemonthyme-power-station-fact-sheet.pdf?sfvrsn=9dcc9b28_2) (PDF). *Mersey-Forth Catchment*. [Hydro Tasmania](/source/Hydro_Tasmania). [Archived](https://web.archive.org/web/20230617200338/https://www.hydro.com.au/docs/default-source/clean-energy/our-power-stations/power-station-fact-sheets/lemonthyme-power-station-fact-sheet.pdf?sfvrsn=9dcc9b28_2) (PDF) from the original on 17 June 2023. Retrieved 18 June 2023.

v t e Energy in Tasmania Hydroelectric Derwent Butlers Gorge Catagunya Cluny Lake Echo Liapootah Meadowbank Nieterana Repulse Tarraleah Tungatinah Wayatinah Gordon-Pedder Gordon Franklin Dam controversy Mersey-Forth Cethana Devils Gate Fisher Lemonthyme Paloona Parangana Rowallan Wilmot West Coast King John Butters Lake Margaret Pieman / Anthony Bastyan Mackintosh Reece Tribute Yingina / Great Lake Poatina Tods Corner Trevallyn Others Huntsman Decommissioned Duck Reach Moorina Waddamana Waddamana B Wind farms Granville Harbour Musselroe Woolnorth Cattle Hill Huxley Hill (King Island) Natural gas Tamar Valley Decommissioned Bell Bay Organisations Alinta Aurora Powerco Hydro Tasmania Roaring 40s TasNetworks Former Transend Networks Interconnectors Basslink Planned Marinus Link Other Office of the Tasmanian Economic Regulator 2016 Tasmanian energy crisis List of power stations in Tasmania

This article about a hydroelectric power plant is a stub. You can help Wikipedia by adding missing information.

- [v](https://en.wikipedia.org/wiki/Template:Hydroelectric-power-plant-stub)
- [t](/source/Template_talk%3AHydroelectric-power-plant-stub)
- [e](https://en.wikipedia.org/wiki/Special:EditPage/Template:Hydroelectric-power-plant-stub)

This article about an Australian power station is a stub. You can help Wikipedia by adding missing information.

- [v](https://en.wikipedia.org/wiki/Template:Australia-powerstation-stub)
- [t](/source/Template_talk%3AAustralia-powerstation-stub)
- [e](https://en.wikipedia.org/wiki/Special:EditPage/Template:Australia-powerstation-stub)

---
Adapted from the Wikipedia article [Lemonthyme Power Station](https://en.wikipedia.org/wiki/Lemonthyme_Power_Station) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Lemonthyme_Power_Station?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.