HEC Derwent scheme - Tarraleah Power Station Tasmania, Australia
By
Budgietas on 09-Jul-21. Waypoint GA22702
Cache Details
| Difficulty: | |
| Terrain: | |
| Type: | Traditional |
| Container: | Small |
| Coordinates: | S42° 17.978' E146° 27.452' (WGS 84) |
| 55G 455285E 5316812N (UTM) | |
| Elevation: | 358 m |
| Local Government Area: | Central Highlands |
/146.457533,-42.299633,14/400x200?access_token=pk.eyJ1IjoiY2F1Z2h0YXR3b3JrIiwiYSI6ImNqa2l4ZzNzMDE5bjgzdm1sZGpuODF1Mm0ifQ.q8YMzVyzDJJlJHHV8EMjwQ)
Description
HEC Derwent Scheme
Construction of the Derwent hydropower scheme began in 1934 and the last power station was commissioned in 1968.
There are two sections in the Derwent hydropower scheme – the upper and lower. This is because of the difference in how the water is stored in the sections. Visually the scheme resembles a Y shape.
The upper section of the scheme uses larger, deeper lakes for water storage than the lower section. The four main power stations in the upper section release water when it is needed to generate electricity. The upper section is formed from the Nive River system in the east and the Derwent River system in the west, making up the top of the Y.
The lower section is called run-of-river, which means water flows to power stations directly from a river, and cascades through a series of power stations. This means the same water is used to generate energy multiple times. There are six power stations in the lower section and they use water from the Derwent River multiple times. The lower section forms the ‘tail’ of the Y.
Tarraleah Power Station
Water flows from Butlers Gorge Power Station via a series of tunnels and canals to Tarraleah. The water drops 290 metres through penstocks to the power station.
Date commissioned 1938-51
Generating capacity 93.6 MW
Number of turbines 6
Type of turbines Pelton hydropower
Hints
Thneq Envy |
|
Decode |
Logs
Found this cache after going to Apple Isle Moot on my post tour.
I’ll be in Tassie till the 29th of January
I’ve may have added one of my moot pathtags for the next person to find
The stars finally aligned to tackle your HEC Derwent Scheme caches.
Left home at 7am and arrived back at 7pm after driving some 560km and finding 33 caches.
This is a great series of caches, which took me to many places I've never seen with quite spectacular scenery and HEC engineering.
This cache was found easily with log being dry near the Tarraleah power station.
Many thanks for an awesome series
....thoroughly enjoyed....cheers ST.
Accurate coordinates and the hint led to a quick find. The cache and contents were in good condition. Thanks Budgietas for the cache.
A road trip today to find plastic
Continuing up the road - an area I visited many times and travelled past a lot while working at Bronte Chalet
A good place for a pit stop
After walking across the bidge, I spent some time dodging the workers trying to fix the gates to the nearby station
Sainted the cache at 1441 hours with a quick, easy find
Made 27 finds during a drive of 427 kilometres
That's 1 cache every 15.8km driven
The total distance walked finding the caches was 9.98km using 12968 steps while expending 1895 calories
That's 1 cache found in every 370 metres walked or 1 cache every 480 steps taken
Every cache found cost me 70 calories
TFTC and cheers
OldSaint
This is one impressive HEC scheme and we appreciate the time and effort gone into highlighting these locations.
Many thanks Budgietas for bringing us here. We shared a joint *FTF* with whitewebbs.
I spent the first years of my childhood in Tarraleah, and can vividly remember visiting butlers gorge power station and being driving under the spillway.
I hope you enjoy the series as much as I have enjoyed placing it
