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dc.contributor.authorUpton, John
dc.contributor.authorHumphreys, James
dc.contributor.authorGroot Koerkamp, Peter W. G.
dc.contributor.authorFrench, Padraig
dc.contributor.authorDillon, Pat
dc.contributor.authorde Boer, Imke J. M.
dc.creatorJ., Upton
dc.identifier.citationUpton, J., Humphreys, J., Groot Koerkamp, P., French, P., Dillon, P. and De Boer, I. Energy demand on dairy farms in Ireland. Journal of Dairy Science, 2013, 96(10), 6489-6498. DOI:
dc.description.abstractReducing electricity consumption in Irish milk production is a topical issue for 2 reasons. First, the introduction of a dynamic electricity pricing system, with peak and off-peak prices, will be a reality for 80% of electricity consumers by 2020. The proposed pricing schedule intends to discourage energy consumption during peak periods (i.e., when electricity demand on the national grid is high) and to incentivize energy consumption during off-peak periods. If farmers, for example, carry out their evening milking during the peak period, energy costs may increase, which would affect farm profitability. Second, electricity consumption is identified in contributing to about 25% of energy use along the life cycle of pasture-based milk. The objectives of this study, therefore, were to document electricity use per kilogram of milk sold and to identify strategies that reduce its overall use while maximizing its use in off-peak periods (currently from 0000 to 0900h). We assessed, therefore, average daily and seasonal trends in electricity consumption on 22 Irish dairy farms, through detailed auditing of electricity-consuming processes. To determine the potential of identified strategies to save energy, we also assessed total energy use of Irish milk, which is the sum of the direct (i.e., energy use on farm) and indirect energy use (i.e., energy needed to produce farm inputs). On average, a total of 31.73 MJ was required to produce 1kg of milk solids, of which 20% was direct and 80% was indirect energy use. Electricity accounted for 60% of the direct energy use, and mainly resulted from milk cooling (31%), water heating (23%), and milking (20%). Analysis of trends in electricity consumption revealed that 62% of daily electricity was used at peak periods. Electricity use on Irish dairy farms, therefore, is substantial and centered around milk harvesting. To improve the competitiveness of milk production in a dynamic electricity pricing environment, therefore, management changes and technologies are required that decouple energy use during milking processes from peak periods.en_US
dc.relation.ispartofJournal of Dairy Science
dc.relation.ispartofseriesJournal of Dairy Science;Vol. 96 (10)
dc.rights© 2013 American Dairy Science Association®.
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 United States*
dc.subjectenergy useen_US
dc.subjectmilk productionen_US
dc.subjectsmart meteringen_US
dc.titleEnergy demand on dairy farms in Irelanden_US
dc.contributor.sponsorINTERREG IVB North-West Europeen_US

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    Teagasc LIvestock Systems Department includes Dairy, Cattle and Sheep research.

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© 2013 American Dairy Science Association®.
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