Profits made by selling bulk electricity to the Scottish lowlands would be used to fund "the economic development and social improvement of the North of Scotland."

The deputy chairman and chief executive was Edward MacColl, an engineer with wide experience of hydro-electric projects and electrical distribution networks.

[5] It soon became clear that MacColl intended to push ahead with the aspirations of the Act at breakneck speeds.

From the dam, a tunnel and pipeline feeds the water to Finlarig power station, located on the shore of Loch Tay at its south-western end.

Additionally, headwaters from two tributaries of the River Lochay are fed directly into the tunnel supplying the power station.

[16] The Killin section consists of three power stations, Cashlie, Lubreoch and Lochay, with two major dams and a third smaller one.

Furthest west, Lubreoch dam was constructed at the eastern end of Loch Lyon by James Miller and Partners.

Its catchment has been increased by tunnels and aqueducts to the south and east, picking up tributaries of the River Lyon.

Compensation water to maintain the flow in the River Lyon passes through a generator set below the dam.

An intake gatehouse tower is located at the southern end of the dam, and controls the flow of water to Lochay power station.

A dispersal valve discharges compensation water through the dam to maintain the flow in the River Lednock.

There is an intake gatehouse around half way along the loch, which controls the flow of water to St Fillans power station.

[15] The North of Scotland Hydro-Electric Board were always looking for ways to improve their processes, and there is evidence of this at Breadalbane.

The rock fill dam at Breaclaich was built to reduce the amount of cement used, and this technique had previously been used at Quoich.

The potential disaster was dealt with relatively easily, by pumping out the tunnel and using cast-iron segments to line a diversion.

Most of the scheme was completed by late 1959, with only the Lednock station held up by issues with the Breaclaich section, resulting in it not being commissioned until March 1961.