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Sunday, 22.05.2022
eGovernment Forschung seit 2001 | eGovernment Research since 2001

Since the end of 2018, the Scottish capital has upgraded more than 55,000 lanterns with energy-efficient LED lights, which it is estimated will generate savings of £54m over 20 years.

A three-year citywide project to upgrade Edinburgh’s streetlights is nearing completion.

In that time, the City of Edinburgh Council has replaced more than 55,000 outdated lanterns with energy-efficient LED lights. These use around 60 per cent less energy than previous lamps and as a result it is estimated they will generate savings of £54m over 20 years. The council reports the street lighting energy bill had already dropped by 55 per cent in November 2021 compared to the same month in 2018.

Carbon footprint

According to the council, the changes will have a significant impact on the city’s carbon footprint, helping Scotland’s capital achieve its net zero 2030 goal.

Council emissions dropped by 11 per cent between 2020 and 2021, which has been mainly attributed to a fall in energy consumption, with new LED lights accounting for a third of this reduction. Carbon emissions attributed to street lighting alone were two-thirds lower in November compared to November 2018.

In addition, the new lamps use “white light” technology giving off a clearer, crisper light, enhancing community safety by making CCTV images clearer and by allowing light levels to be varied. They also last for more than 20 years compared to previous lights’ life span of between two- and four years.

There are currently around 65,000 streetlights in Edinburgh of which 10,000 of these were already energy-efficient before the improvement project began so were excluded from the project.

“This has been a huge project spanning more than three years and I know the team has worked extremely hard to deliver the changes despite the challenges posed by the pandemic,” said councillor Karen Doran, transport and environment vice convener.

“What’s fantastic is that we’re already beginning to feel the benefits of new, energy-efficient street lighting. Not only are we saving on costs, but we’ve seen carbon emissions drop thanks to lower energy use. These are exactly the kind of changes we need to make to become a resilient, net zero city.”

In addition to saving energy, benefits of the new lighting include:

  • new light fittings will be close to 100 per cent recyclable and won’t contain the hazardous substances (sodium and mercury) that existing lamps do
  • light output is more controlled and concentrated on the roads and footways. The orange sky glow that is seen on cloudy nights is also reduced
  • Surrounding areas away from direct light will be returned to their natural state benefiting nocturnal animals
  • LED streetlights don’t like high temperatures, making Scotland the ideal country to use them (the cooler the temperature the better the light works).

Prudential borrowing of £24.5m for the project was approved by council on 19 November 2015. It is anticipated to deliver revenue savings of £3.6m and avoid costs of more than £54m associated with increasing energy prices over the next 20 years.

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Quelle/Source: Smart Cities World, 22.12.2021

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