Holmesdale Tunnel shines brighter

Written by kirsty

Located on the M25, the Holmesdale Tunnel (684m) has served North London since 1984. Its 2010 lighting upgrade used high-pressure sodium lamps, as LEDs weren’t viable then.

Fast forward to today and a new LED retrofit solution has now transformed the tunnel:

💰 Reduced capital costs
🌟 Improved visibility for drivers
💡 Projected annual energy savings of >60%
🌍 Reduced CO2
🛠️ Lower maintenance

This upgrade delivers operational savings, a greener footprint, and enhanced driver safety.

See the before and after photos of this transformation below!

For more information, please read the case study.