The biggest solar energy farm in the country has been opened near Kinsale in Co Cork.

The €5 million facility is located on a 16-acre site at Dunderrow.

It will produce up to 5.6 megawatts of electricity for US pharmaceutical manufacturer, Lilly.

The company is one of the longest-established pharmaceutical manufacturers in Ireland.

It is based on a 50-hectare site near Kinsale since 1978 and has been manufacturing there since 1981.

Lilly has a workforce of almost 2,000 directly and another 500 indirectly in Ireland, and continues to grow.

Its latest development is a solar energy farm - the biggest in the Republic - capable of producing up to 5.6 megawatts of electricity.

That is enough to the supply electricity needs of every house in Kinsale, or to more than 1,000 households.

The facility will reduce Lilly's carbon footprint by 2,350 tonnes per year at its Dunderrow plant.

It was opened by Taoiseach Micheál Martin and Lilly Chairman and Chief Executive Dave Ricks.