Tipperary Energy Agency recognised that without making significant changes to the trading structure and introducing a renewable energy feed-in tariff, it would not be economically viable to export renewable electricity from its buildings. Therefore, it was deemed appropriate that an installation, at its maximum output, would meet the minimum daytime energy consumption of the building, without any excess energy consumption being produced. In Ireland, it is currently not economically viable to feed this excess back into the grid. A well-sized PV base load reduction project will seek to eliminate 5% – 10% of the total annual units of a building and 7-12% of the cost of the bill for the buildings.