The installation of LED lighting is one of the most effective ways of cutting electricity consumption. With the legislative phasing out of traditional filament bulbs and halogen bulbs it is also now increasingly urgent. Already we are finding that certain bulbs for existing fittings (which in the case of the Cathedral date back to 1991) are increasingly difficult to source.
In 2016 we commenced the roll out of LED fittings in Cathedral House. Over 3 phases, the most recent in 2018, old 'CAT2' style recessed louvre fittings in Becket Hall, the CIC offices, corridors and toilets have been replaced with LED panels, which typically consume 60% less energy. We have also added motion sensors in the toilets. We have had positive feedback on improved light quality from user groups and future phases will include the music/song rooms and kitchen, and the 1F administrative offices.
The Cathedral presents a greater cost challenge for LED lighting because many existing fittings have dimming programmes, thus any replacement will also involve infrastructure costs. We have initially re-lamped the non-dimmed areas, including the shop, reception area, Nave and ambulatories. This has had a marked effect on electricity consumption – falling immediately by c15% and thus paying back the bulb costs in around 4-6months. Upgrading the remaining areas of the Cathedral is something that we hope to do within the next 2 years.
Externally the old floodlights have not been used since the 2008 recession. New LED lighting was however added to the tower in 2017. This consumes little power and has a variety of colour options – recently we lit the tower green at the end of March to mark Earth Hour as part of our social awareness activities.