The electricity bill can often add up to a substantial amount on dairy farms. Research from Teagasc has shown that electricity usage contributes on average, 0.60c/L to milk production costs. In terms of electricity consumption per dairy cow milked, the figures vary from 4 kWh/cow/week to 7.3 kWh/cow/week. This is equivalent to €0.60/cow/week to €1.10/cow/week.