Incorporated in 1999, TLS Hydro set out to build and manage hydropower schemes to help provide clean energy to domestic and business sites across Scotland and the North of England.

TLS Hydro's first venture came in 2000 when it aquired a historic generating station on the River Leven at Balgonie Castle near Glenrothes. With a combined capacity of 650kWs the two turbines, originally installed in 1922 were renovated and returned to production.

In 2002, TLS Hydro renovated their second station on the site of an old mill called Stormontfield. This station has a single turbine with a total capacity of 110kW and is located on the River Tay near Perth.

In 2004, following two years of planning and design work, TLS Hydro commissioned the Nenthead hydro power station near Alston in Cumbria. The wider site was historically extensively mined for the lead. Water was stored in two reservours during the 300 year old mining operations, and TLS Hydro installed new buried pipe work and a new buidling housing two turbines, one for each of the reservoirs - Handsome Mea and Perry's Dam.

In 2006 TLS commissioned our Cleghorn Hydro Power Station on Mouse Water near Lanark in Scotland. The site had a long association with hydro power, with installations dating back to 1880 and pre WWII, although the infrastructure from those developments was completely derelict so the entire site was designed and built without being able to use any of the existing infrastructure.

After gaining experience in renovating and rebuilding stations, TLS Hydro ventured further north in search of new projects. In 2008 we constructed Roshven Hydro which was built on a site on the Moidart Peninsula in West Lochaber, a remote area which had no previous history of industrial hydro power. This 500kW turbine uses water sourced from the Irene Burn that flows into Loch Ailort.

When the Government introduced the Feed-In-Tariff, TLS Hydro took advantage of the favourable rates when they agreed a joint venture with Derwent Hydro to build a 330kW station called Greenholme Mill. This station was built on the River Wharfe, the fastest rising river in England, north of Leeds in Yorkshire.

In 2012, we decided to return to the Highlands when an opportunity became available to build a new project in Glenfinnan west of Fort William. When completed Slatach Hydro was our largest hydro project with two turbines that had a combined capacity of approximately 1MW. Since generating electricity in August 2013, the station has generated over 3,000 MWhs each year, enough to power approximately 1,000 homes.

A year later another opportunity near Roshven and Slatach arose for TLS Hydro. This station called Brunery Hydro is one of the 'highest head' schemes in the UK, which offered TLS Hydro some advantages but also came with many challenges. Water utilised by the site is stored in Loch nam Paitean at a height approximately 370m above sea level. The challenge that was presented whilst building the station came from the steep, exposed and rugged hillside which resulted in the need to build an access track taking 5 months to complete. The pipeline is 1.6km long and drops 340m over its entire length; the resulting high pressure meant most of the pipe had to be made out of ductile iron.

Our next project Carrongrove Hydro was commissioned in 2015 and is located on the River Carron in Denny, Stirlingshire. Historically the site utilised water in a paper mill for 150 years that closed in 2005. The new site has a capacity of 499kW from a single turbine. The site has utilised an exisitng weir from the original paper mill, but required an extensive rebuild to incorporate a fish pass that enables salmon and trout to access 30kms of previously inaccessible sections of the River Carron. The development also included a new 600m buried pipeline and Power House and substation facility.

Our most recently completed project was commissioned in April 2017 in the Loch Lomond & Trossachs National Park, near Aberfoyle. Bruach Caorainn Hydro is a 1.2MW station and our largest project to date as well as being the most ambitious construction project we have undertaken. Since commissioning Bruach Caorainn Hydro has exceeded its forecast expectations and has all the makings of another successful development.