CNN values your feedback

1. How relevant is this ad to you?
2. Did you encounter any technical issues?
Thank You!
Your effort and contribution in providing this feedback is much appreciated.
Close
Ad Feedback
World
Africa
Americas
Asia
Australia
China
Europe
India
Middle East
United Kingdom
More
Africa Americas Asia Australia China Europe India Middle East United Kingdom
Audio Live TV
My Account
  • Settings
  • Topics You Follow
  • Log Out
Your CNN account Log in to your CNN account
My Account
  • Settings
  • Topics You Follow
  • Log Out
Your CNN account Log in to your CNN account

Live TV Audio
Edition
US
International
Arabic
Español
Edition
  • US
  • International
  • Arabic
  • Español

Africa
Americas
Asia
Australia
China
Europe
India
Middle East
United Kingdom
Follow CNN

  • World
    • Africa
    • Americas
    • Asia
    • Australia
    • China
    • Europe
    • India
    • Middle East
    • United Kingdom
  • US Politics
    • The Biden Presidency
    • Facts First
    • 2024 Elections
  • Business
    • Tech
    • Media
    • Calculators
    • Videos
  • Markets
    • Pre-markets
    • After-Hours
    • Market Movers
    • Fear & Greed
    • World Markets
    • Investing
    • Markets Now
    • Before the Bell
    • Nightcap
  • Health
    • Life, But Better
    • Fitness
    • Food
    • Sleep
    • Mindfulness
    • Relationships
  • Entertainment
    • Movies
    • Television
    • Celebrity
  • Tech
    • Innovate
    • Gadget
    • Foreseeable Future
    • Mission: Ahead
    • Upstarts
    • Work Transformed
    • Innovative Cities
  • Style
    • Arts
    • Design
    • Fashion
    • Architecture
    • Luxury
    • Beauty
    • Video
  • Travel
    • Destinations
    • Food & Drink
    • Stay
    • News
    • Videos
  • Sports
    • Football
    • Tennis
    • Golf
    • Motorsport
    • US Sports
    • Olympics
    • Climbing
    • Esports
    • Hockey
  • Videos
    • Live TV
    • Digital Studios
    • CNN Films
    • HLN
    • TV Schedule
    • TV Shows A-Z
    • CNNVR
  • Features
    • As Equals
    • Call to Earth
    • Freedom Project
    • Impact Your World
    • Inside Africa
    • 2 Degrees
    • CNN Heroes
    • All Features
  • Weather
    • Climate
    • Wildfire Tracker
    • Video
  • More
    • Photos
    • Longform
    • Investigations
    • CNN Profiles
    • CNN Leadership
    • CNN Newsletters
    • Work for CNN

Famous buildings retrofit

Updated 5:20 AM EST, Thu February 9, 2012
Link Copied!
Ad Feedback
An artists impression of how Tower Bridge in London will look once it has been retrofitted with a new low-energy LED lighting system.
Tower Bridge —
An artists impression of how Tower Bridge in London will look once it has been retrofitted with a new low-energy LED lighting system.
Solar panels shimmer in the sunlight in front of St Peter's Basilica in the Vatican City. One thousand photovoltaic panels cover the roof of the Paul VI Audience Hall that generate enough electricity to meet all heating, lighting and cooling requirements of the 6,300 seat venue.
Vatican City —
Solar panels shimmer in the sunlight in front of St Peter's Basilica in the Vatican City. One thousand photovoltaic panels cover the roof of the Paul VI Audience Hall that generate enough electricity to meet all heating, lighting and cooling requirements of the 6,300 seat venue.
A project to retrofit the Empire State building in New York began in 2009.  All 6,500 windows of the skyscraper are being replaced while the building's air conditioning and lighting systems are also being upgraded. It's expected to reduce energy use by over 35%.
Empire State Building —
A project to retrofit the Empire State building in New York began in 2009. All 6,500 windows of the skyscraper are being replaced while the building's air conditioning and lighting systems are also being upgraded. It's expected to reduce energy use by over 35%.
The air conditioning system in the Sydney Opera House has been adapted to utilize sea water from the surrounding harbour.
Sydney Opera House —
The air conditioning system in the Sydney Opera House has been adapted to utilize sea water from the surrounding harbour.
The Eiffel Tower in Paris has reduced its energy consumption with a low energy LED lighting system. This artists impression however envisions further carbon reductions by growing 600,000 plants on the world famous structure. The company behind the project claims that 87 tons of CO2 could be removed from the Paris sky each year.
Eiffel Tower —
The Eiffel Tower in Paris has reduced its energy consumption with a low energy LED lighting system. This artists impression however envisions further carbon reductions by growing 600,000 plants on the world famous structure. The company behind the project claims that 87 tons of CO2 could be removed from the Paris sky each year.
My Account
  • Settings
  • Topics You Follow
  • Log Out
Your CNN account Log in to your CNN account

Live TV Audio
  • World
    • Africa
    • Americas
    • Asia
    • Australia
    • China
    • Europe
    • India
    • Middle East
    • United Kingdom
  • US Politics
    • The Biden Presidency
    • Facts First
    • 2024 Elections
  • Business
    • Markets
    • Tech
    • Media
    • Calculators
    • Videos
  • Health
    • Life, But Better
    • Fitness
    • Food
    • Sleep
    • Mindfulness
    • Relationships
  • Entertainment
    • Movies
    • Television
    • Celebrity
  • Tech
    • Innovate
    • Gadget
    • Foreseeable Future
    • Mission: Ahead
    • Upstarts
    • Work Transformed
    • Innovative Cities
  • Style
    • Arts
    • Design
    • Fashion
    • Architecture
    • Luxury
    • Beauty
    • Video
  • Travel
    • Destinations
    • Food & Drink
    • Stay
    • News
    • Videos
  • Sports
    • Football
    • Tennis
    • Golf
    • Motorsport
    • US Sports
    • Olympics
    • Climbing
    • Esports
    • Hockey
  • Videos
    • Live TV
    • Digital Studios
    • CNN Films
    • HLN
    • TV Schedule
    • TV Shows A-Z
    • CNNVR
  • Features
    • As Equals
    • Call to Earth
    • Freedom Project
    • Impact Your World
    • Inside Africa
    • 2 Degrees
    • CNN Heroes
    • All Features
  • Weather
    • Climate
    • Wildfire Tracker
    • Video
  • More
    • Photos
    • Longform
    • Investigations
    • CNN Profiles
    • CNN Leadership
    • CNN Newsletters
    • Work for CNN

World
Audio Live TV
Follow CNN
My Account
  • Settings
  • Topics You Follow
  • Log Out
Your CNN account Log in to your CNN account

Terms of Use Privacy Policy Ad Choices Accessibility & CC About Newsletters Transcripts

© 2023 Cable News Network. A Warner Bros. Discovery Company. All Rights Reserved.
CNN Sans ™ & © 2016 Cable News Network.