Glastonbury Festival is undergoing an "enormous project" to create a site-wide ban on plastic water bottles when it returns in 2019.
The festival has taken steps in the past to reduce plastic bottle use.
In 2014, environmentally-friendly stainless-steel bottles and water kiosks were introduced, providing festival goers with free refills.
However, estimates suggest that around one million plastic bottles are used annually at Glastonbury.
“We want to reduce plastic bottle waste on the festival site but also in people’s daily lives,” the website reads.
A 40-person Pee Power urinal has been powering lights and charging mobile phones at Worthy Farm for the past two years.
The technology is just one of a number of sustainable features at Glastonbury.
Plastic pledge Glastonbury’s announcement is the latest in a long line of recent pledges vowing to reduce the use of single-use plastics.
Last week, the Church of England provided worshippers with a calendar of tips to avoid using single-use plastic during Lent, with MPs and environmental law firm ClientEarth also agreeing to the pledge.
The BBC announced it will launch a new "three-step plan" to remove single-use plastics from its operations by 2020, while caterers to the Royal Family will only be allowed to use china plates and glasses, or recyclable paper cups for events.