The project which includes 4,500 individual solar panels started in 2022 and was completed last month.
The group say the panels will provide a quarter of the electricity needed at the site, increasing to 100 per cent during the summer months.
300 people are employed at the Carrigaline site which opened 20 years ago.
Tánaiste Micheál Martin welcomed the company's sustainability efforts:
“Climate change is the biggest global challenge facing us and sustainability is very much to the fore of public consciousness. This is why it is great to see companies like PepsiCo leading by example, by utilising sustainable sources of energy in order to protect our planet. The food and beverage sector is a vital part of the Irish economy and I would like to acknowledge PepsiCo’s ongoing commitment to investing significantly in its Irish operations, supporting high quality manufacturing and jobs, as it marks the 20th anniversary of this facility here in Carrigaline”.
