In the US, National Grid teamed up with the city of Worcester in Massachusetts to inspire the community to start using ENERGY STAR® qualified compact fluorescent light bulbs (CFLs). We worked with local artists who painted their interpretation of energy efficiency on five larger than life seven foot CFL replicas, which then went on to be displayed at the local City Hall.

CFL light bulbs provide numerous benefits to our customers: they use 75% less energy than standard bulbs and can save around $40 (£25) per bulb in energy costs over the life of the bulb. They last longer and are environmentally friendly.

Studies show that if every home in the US replaced just one light bulb this would save enough energy to light more than 3 million homes for a year.