Maentwrog Power Station

Maentwrog Power Station

Maentwrog Power Station

Date

8 December 2012
Location

Maentwrog, Vale of Ffestiniog

SH 65365 39561; 52.93650°N, 4.00473°W

Information

The hydroelectric power station at Maentwrog in the Vale of Ffestiniog was built by Sir Alexander Gibb and Partners for the North Wales Power Company and opened in 1928. It is fed with water via the two-mile-long pipeline from Maentwrog Dam at Llyn Trawsfynydd. Originally equipped with three turbines, its combined output of 18 MW was at the time more than sufficient to meet the electricity needs of North Wales. An additional turbine was installed in 1934 and when the new dam was being built in 1991 the power station was re-equipped bringing its output capacity up to 30 MW.

The remarkably wet summer of 2012 proved to be something of a boon for the power station, with its generators able to run for up to 14 hours a day, compared to as little as 2 hours a day in dry summers. This June — the wettest one for most of the UK since records started in 1910 — Maentwrog was able to generate an extra 1,000 MWh of electricity. And that is enough to make around 40 million cups of tea.

Maentwrog Power Station is operated by Magnox on behalf of the Nuclear Decommissioning Authority, with profits made by the latter being offset against the costs of decommissioning the UK’s legacy nuclear power installations.

Maentwrog Power Station.  Site owned by the Nuclear Decommissioning Authority.

Maentwrog Power Station. Site owned by the Nuclear Decommissioning Authority.

Maentwrog Power Station, with the pipeline to the left

Maentwrog Power Station, with the high-pressure pipes to the left

Advertisements

4 thoughts on “Maentwrog Power Station

  1. Pingback: Maentwrog Dam « GeoTopoi

  2. As a structure, it has a lot more going for it than Llyn Ystradau, although I think you have been kind to the rather indelicate shade of corporate purple/blue that Magnox have used to paint the doors! Thank goodness they left the window frames white. It’s very nice to see this Ffestiniog series..more, more!

  3. Pingback: Maentwrog Pipeline « GeoTopoi

Share your thoughts...

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s