The car port, introduced at Dobbies Peterborough in 2011, can generate enough electricity to power a three-bedroom house for a year and includes two electric vehicle charging posts to help customers recharge their car for free when visiting the garden centre.
The equipment includes photovoltaic solar panels on the roof that convert sunlight into electricity and generate around 6,000 kilo-watt hours of electricity a year which also supplements the energy usage of the centre.
Dobbies sustainability manager Richard Jardine, said:
"We chose Peterborough as our first store to launch our new concept Eco Living Centre, including electric car charging, because the city of Peterborough is aiming to be the UK’s environmental capital.
"Dobbies aims to inspire and educate its customer to reduce their carbon footprint through simple changes to their own home, garden or lifestyle.
"We are looking to roll out the concept of electric vehicle charging points to our other 30 garden centres throughout the UK and will make an official announcement in early January.
"Dobbies Eco-Living Centre aims to give our customers a variety of product choices to make informed decisions for important changes within their home.
"Our partnership with EDF Energy leverages expert knowledge to offer customers individually-tailored help and advice."