BBC News
watch One-Minute World News
Last Updated: Monday, 7 January 2008, 13:04 GMT
Hydro tunnel makes breakthrough
Tunnel at Glendoe
A network of nine miles of tunnels has been dug

A huge boring machine has completed a five mile tunnel for a 140m hydro-electric scheme it started digging 15 months ago.

The 220-metre long machine, called Eliza Jane, made its breakthrough at Glendoe, Fort Augustus, on Monday.

Scottish and Southern Energy's plant above Loch Ness will generate power for 250,000 homes. The scheme is expected to begin operating later this year.

It is the first large-scale hydro-electric project since 1957.

The project will turn rainfall into green energy through a nine-mile network of tunnels linking a dam above Loch Ness to a generating station 2,000 feet below.

Scottish and Southern Energy said the project would pay for itself over the next 10 years.

Its chief executive, Ian Marchant, said: "The completion of this phase of the Glendoe development is significant.

"It is a unique, large and complex project and I am delighted with the progress that is being made."

In 2006, a convoy of lorries carried the tunnelling machine in parts from Inverness to Fort Augustus down the A82.

Pupils at Kilchuimen Academy, Fort Augustus, dubbed it the Eliza Jane.

Prime Minister Tony Blair ignited an explosive charge to begin the creation of the five-mile tunnel in hills above Loch Ness.

The scheme involves the construction of a 1,000m dam at the head of Glen Tarff and the building of an underground power station inside Borlum Hill.

Tunnel graphic

Digging deep for hydro electric
10 Nov 06 |  Highlands and Islands
In pictures: Hydro power scheme
10 Nov 06 |  In Pictures
New village built for hydro staff
15 Sep 06 |  Highlands and Islands

The BBC is not responsible for the content of external internet sites

Has China's housing bubble burst?
How the world's oldest clove tree defied an empire
Why Royal Ballet principal Sergei Polunin quit


Americas Africa Europe Middle East South Asia Asia Pacific