The UK 's energy sector shows the most concern about the risk of cyber attacks on power generation and transmission infrastructure , according to Steve Holliday , the former CEO of National Power . He said the danger posed to energy systems was coming to the fore now because of the trend away from well-protected, centralised large power stations and towards decentralised power, such as lots of small, flexible gas power plants and solar panels on homes. Holliday told The Guardian that perceived threats were coming to the fore as the country has stopped relying on large centralised power stations and started deploying smaller gas - fired plants and home - generation technologies , such as solar panels . Some 40 % of UK firms are " significantly concerned " over potential attacks on energy infrastructure , according to a survey of 500 businesses by PwC.
The UK 's energy sector shows the most concern about the risk of cyber attacks on power generation and transmission infrastructure , according to Steve Holliday , the former CEO of National Power . Holliday told The Guardian that perceived threats were coming to the fore as the country has stopped relying on large centralised power stations and started deploying smaller gas - fired plants and home - generation technologies , such as solar panels . Some 40 % of UK firms are " significantly concerned " over potential attacks on energy infrastructure , according to a survey of 500 businesses by PwC.