About us

AS Augstsprieguma tikls (AST) is an independent transmission system operator in the Republic of Latvia, engaged in providing electric power transmission network services and ensuring the balancing and stability within the transmission network.

The electric power transmission network consists of interconnected networks and equipment, including cross-border connections with voltages of and above 110kV, which are used to transmit electric power from the producers of electric power to the relevant distribution network or end-users.


+Figures and facts


+Membership in public organizations

AST is a member of the following public organizations:



The participation of AST in ENTSOe – (the European Network of Transmission System Operators for Electricity) provides an opportunity to participate in the development of legislation and policy documents at the European level. 36 countries and 43 operators of transmission systems are represented in the association. Its goal is to work towards liberalising the gas and electricity market in the European Union.

AST has been a member of the “Latvian Association of Personnel Management” since 2010. The association was founded in order to promote the popularity of personnel management in Latvia, to increase the competence of the personnel specialists and managers, as well as the prestige of this position in the labour market, in order to demonstrate the positive impact of effective personnel management on the successful operation of companies.



The participation of AST in the “Latvian Association of Power Engineers and Energy Constructors” (LEEA) provides an opportunity to participate in the evaluation and development of electricity and energy legislation, policy documents and standards, in the organisation of personnel certification and training programmes, in conducting research related to power energy and in the organisation of scientific and technical events, as well as to cooperate with educational institutions in the field of power engineering. The representatives of AST regularly attend LEEA meetings to provide an exchange of views on current issues in the power industry, including energy security.


AST has been a corporative member of the “Institute of Corporate Sustainability and Responsibility” since 2016 and is involved in its activities by participating in the annual evaluation of the Sustainability Index, improving its performance year by year, and by participating in the activities of good practice exchange organised by the Institute (seminars, training, Responsible Business Week).



AST has been a member of the “National Committee of the World Energy Council” (PEP LNK) since 2016. Participation in PEP LNK provides information on the exploration, extraction, transport, transformation and efficient use of energy resources, both nationally and internationally.

In order to maintain quality, competence and compliance with the requirements of international standards of the accredited AST chemistry laboratory, in May 2015 AST became a member of the “Latvian Association of Testing Laboratories”.