A record year in energy generation
Electricity generation was successful in 2017 and surpassed 14 Twh.
Generation levels reached record levels in the Fljótsdal, Sigalda, Búðarháls, Sultartanga and Steingrímsstöð Power Stations.
Hydropower: 13,459 GWh
The total energy generation of Landsvirkjun’s hydropower stations was approx. 13,459 GWh in 2017.
Landsvirkjun operates 14 hydropower stations all over Iceland, divided into four areas of operation. There are six power stations in the Þjórsá area, with a total of 18 generating units and a number of waterway structures. The area spans from the Hofsjökull Glacier and down to the Búrfell Hydropower Station. There are three power stations in the Sog area with a total of eight generating units and several waterway structures by the Þingvallavatn Lake and Úlfljótsvatn Lake.
The Laxá Power Stations are located in the Blanda area. There are three stations in the area, with five turbines and the waterway at the Blanda Hydropower Station spans a length of 25 km, from the Reftjarnarbungu and down to the Gilsá River
The fourth operational area is the Fljótsdalur Hydropower station, the largest hydropower station in the country, with six generating units and extensive waterway structures including tunnels 70 km in length. The Station generated 5,000 GWh this year or approximately 37% of Landsvirkjun's total generation.
Operation of power stations
The operation of Landsvirkjun’s power stations was successful throughout the year. There were 82 unforeseen interruptions in 2017 which is comparable to that of 2016. Landsvirkjun's goal is to ensure that generating units in the power stations are available 99% of the year, not accounting for routine maintenance periods. This goal was achieved this year as units were available 99.8% of the time which is the same availability as the previous year.
Landsvirkjun operates in accordance with an integrated, certified Quality Management and Environmental Safety Management System, based on ISO 9001, ISO 14001, OHSAS 18001 and the Internal Electrical Safety Operation System (RÖSK), which fulfils the criteria set out by the Iceland Construction Authority on electrical safety issues. Landsvirkjun has been certified as a producer of green electricity by the German company TÜV SÜD who specialise in the certification of green electricity. In addition, the Company’s IT division’s safety management system is certified in accordance with ISO 27001.
29,000 structures registered in the maintenance support system
Landsvirkjun has always been at the forefront with regard to the organisation and execution of maintenance and renewal.
A number of support systems have been set up throughout the years to assist employees in improving efficiency and ensuring success. An example of this was the first computer generated maintenance system which was taken into use nearly 30 years ago, only a few years after the first PCs hit the market
The maintenance system includes 17 stations with 43 units which are then divided into a number of systems and equipment. There are 29,000 registered structures within the system and approx. 5000 work orders are released on an annual basis including inspection and maintenance. Approximately 50 overhaul projects are carried out each year.
The cost of supervision, inspection, maintenance and improvements is approx. 5.5 billion ISK per year.
A new asset management system was taken into use in 2013 and is based on the ISO 55000 standard. Specialised software was also introduced in connection with this. Renewal projects are prioritised based on benefits and based on a value- model. The value model is based on factors that may cause a loss of income for the Company, as well as positive factors that generate increased income or benefits of other kinds.
The value model for assessing the benefits of renewal projects
International award for sustainable utilisation
The Blanda Hydropower Station received the IHA Blue Planet Prize in 2017, which is awarded by the International Hydropower Association, IHA to hydropower projects that demonstrate excellence in sustainable development.
The prize is awarded on the basis of an assessment using the Hydropower Sustainability Assessment Protocol, a tool that measures the sustainability of a hydropower project across a range of social, environmental, technical and economic aspects. The assessment was conducted at Blanda in 2013 and many of the working procedures at the station were found to be of the highest quality.