HIAL invests over £9 million in energy efficient runway lighting
Highlands and Islands Airports Limited (HIAL) is to invest £9 million in new energy efficient Aeronautical Ground Lighting (AGL) systems at Kirkwall and Inverness airports.
Source: HIAL invests over £9 million in energy efficient runway lighting (https://www.hial.co.uk/news/article/157/hial-invests-over-9-million-in-energy-efficient-runway-lighting)