Main grid
Save the most challenging worksite for last
Antti Puuska, who began working at Fingrid’s predecessor, Imatran Voima, in 1976, discusses how substation construction has changed over the last decades.
17.3.2022
Antti Puuska, who began working at Fingrid’s predecessor, Imatran Voima, in 1976, discusses how substation construction has changed over the last decades.
Hoar frost sticks to the earth wires of transmission lines and presses them onto the phase conductors. The consequence is an earth fault, which de-energises the transmission line. If there is a very large amount of ice load, the tower structures or earth wires could break.
The key personnel in charge of contingency planning in Finland and Sweden attended a course Hanaholmen to consider and practise effective ways of combatting and resolving civil crises.
The energy revolution requires the main grid and the entire energy system to be prepared for the fluctuations in generation output caused by renewable forms of energy. Batteries offer the possibility of the quick and accurate balancing of generation and consumption.
According to Fingrid’s annual customer satisfaction survey, customers continue to consider our work to be good, and, in the main, the results have remained largely the same as in the preceding year.
One of the most important substations in the electricity system of Finland – Fingrid’s Rauma substation – will be refurbished.
Fingrid is raising the fee for electricity transmission in the main grid by an average of two per cent in 2022.
Big changes are ahead for the processes and information systems in the Main Grid Control Centre, but system security must be maintained. To address this challenge, a situational awareness system was put into trial operation in the summer. The system means Fingrid’s customers will receive even better service and a faster response in the event of problems.
Google’s data centre in Hamina celebrated its 10th birthday in September. In ten years, Google has become a significant business partner and an active player that employs and trains top experts while revitalising the business structure in the Kymenlaakso region through its presence, thereby boosting the gross domestic product of Finland as a whole.
Fingrid is building a platform for the clean electricity system, which contributes to Finland’s carbon neutrality goals and creates opportunities for new consumption investments. This development is built upon Fingrid’s long-term grid planning work, which includes preparing a network vision, the main grid development programme for the next ten years, and an investment programme that results in the construction of the physical network.