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However, by changing user input you can cow operations on your farm or ranch. begin to evaluate options for simple, cost- The tool estimates savings from efﬁciency effective solutions that can cut input costs improvements to lighting, ventilation and and save money. For more information on heating systems for swine, poultry and how to increase energy efﬁciency on your dairy cow housing. The tool also estimates farm, see the following ATTRA publications: savings for more efﬁcient ways to heat water Eff icient Agricultural Buildings: An and cool and harvest milk. Overview, Energy Saving Tips for Irrigators, http://ahat.sc.egov.usda.gov Maintaining Irrigation Pumps, Motors and Engines and Conserving Fuel on the Farm. Farm Assessment Toolkit This online toolkit assesses your farm Farm energy calculators operation’s energy efficiency, identi- fies areas for improvement and sug- USDA-NRCS Energy Estimator: gests energy-efficient equipment and Nitrogen management options. The University of The Energy Estimator for Nitrogen, devel- Wisconsin-Extension and Wisconsin’s oped by the U.S. Department of Agricul- Focus on Energy, a group that works to ture’s Natural Resources ConservationRelated ATTRA install cost-effective, energy-efﬁciency and Service, enables you to calculate thepublications renewable energy projects, jointly devel- potential cost savings related to nitrogen oped the toolkit. Each assessment will takeEﬃcient Agricultural use on your farm or ranch. NRCS agron-Buildings: An about 10 to 20 minutes to complete. The omists developed this model to integrateOverview assessments collect general information general technical information on nitrogen about your operation to help determine ifEnergy Saving Tips use with farm-speciﬁc information on fer- you may be able to save energy. At the endfor Irrigators tilizer types, costs, timing and placement. of each assessment, you will get a reportMaintaining Irrigation http://nfat.sc.egov.usda.gov with your responses and any appropriatePumps, Motors and energy tips. After completing an assess-Engines USDA-NRCS Energy Estimator: ment, you can print out the report and useConserving Fuel on Tillage it to guide decisions you make to improvethe Farm This tool estimates diesel fuel use and costs the energy efﬁciency of your operation. in the production of key crops in your area You may also wish to contact a Focus and compares potential energy savings on Energy representative or partner for between conventional tillage and alterna- additional assistance. tive tillage systems. www.soils.wisc.edu/foe/login http://ecat.sc.egov.usda.gov Alliant Energy Farm Energy Audit USDA-NRCS Energy Estimator: This calculator, from Alliant Energy, a Irrigation public utility holding company in Madison, This tool enables you to estimate the energy Wisconsin, estimates the electric energy costs of pumping water for irrigation on use of equipment and appliances that your farm or ranch. The estimator is based you operate on your farm. The calculator on your speciﬁc crops, energy prices and recommends energy-saving alternatives pumping requirements. It estimates energy and estimates potential savings. Addi- savings from implementing a selection of tional calculators from Alliant Energy system improvements. analyze potential savings for electric http://ipat.sc.egov.usda.gov motors, grain dryers, heat reclaimers, irrigation systems, lighting equipment, USDA-NRCS Energy Estimator: milking equipment, scroll compressors Animal Housing and ventilation systems. This tool calculates energy use and costs http://alliantenergy.com/docs/groups/ associated with swine, poultry or dairy public/documents/pub/p010003.hcspPage 2 ATTRA Farm Energy Calculators: Tools for saving money on the farm
Oregon Tilth and Oregon State for water heating, milking systems, milkUniversity Organic Fertilizer Calculator chilling and lighting speciﬁc to dairy farms,This organic fertilizer calculator will help as well as case studies of cost savings andyou choose soil amendments based on cost payback time.effectiveness and soil and crop requirements. www.dairysavings.co.nzThe ﬁle download includes a Microsoft Excelcalculator and instructions. Note that there DLtech, Inc., Dairy Farm Energyare several worksheets within the calculator. Calculatorshttp://smallfarms.oregonstate.edu/ This page includes milk harvesting, milk cool-organic-fertilizer-calculator ing, lighting, ventilation and equipment calcu- lators. DLtech is a New York-based companyWisconsin Public Service Corporation that serves agriculture through engineeredSavings Calculators electro-technology that enables farmers toThese calculators estimate savings from produce a better product, conserve energyinstalling energy-efﬁcient equipment for and improve proﬁtability. These calculatorsthese speciﬁc applications: tractor engine complement DLtech’s Dairy Farm Energyblock heaters, vacuum pumps, ventilation Management Guide, which discusses how tosystems and milk pre-coolers. manage energy costs effectively.www.wisconsinpublicservice.com/farm/ www.dairyfarmenergy.com/Chapter_PDFs/calculators.aspx Calculators.docMontana State University Farm Nitrogen Management on Dairy FarmsEnergy Calculator This Web site, a partnership of Cornell Uni-This energy calculator helps you exam- versity, the University of Vermont and theine the costs and energy used in three dif- USDA, is designed to deliver backgroundferent tillage systems for a range of crops information and management guidelines forincluding winter wheat, spring wheat, bar- efﬁcient nitrogen use throughout the dairyley, canola, f lax, lentils and camelina. farm system. It covers crop and soil nitro-In addition to crop acres, the calculator gen management, feed storage nitrogenrequires some summer fallowed acres be management, herd nitrogen managementincluded in the crop mix. This calculator and manure storage nitrogen management.also helps you compare the costs of biodie- www.dairyn.cornell.edusel and ethanol to petroleum diesel.www.montana.edu/extensionecon/software/ Poultryhouse.com ElectronicCropMixTillageEnergyPriceBioD.swf Calculator for Broiler House Minimum Ventilation Fan Timer SettingsCentral Iowa Power Cooperative This PDF calculator is designed to helpAverage Farm Energy Calculator you do the best possible job of setting fanThis calculator allows you to input the types timers used in cold weather minimumof electrical equipment you use on your farm ventilation. Poultryhouse.com, a projectand provides your farm’s typical monthly of Auburn University, provides practical,electric use. The calculator lists ways to save up-to-date information on the design andenergy speciﬁc to your equipment. management of modern poultry environ-www.cipco.org/energyFarm.asp mental control systems and housing that is useful to poultry producers, ﬂock supervi-Genesis Energy Dairy Energy Calculator sors and industry managers.This tool, from Genesis Energy, an energy www.aces.edu/poultryventilation/retailer in New Zealand, provides calculators documents/MinVentTimerCalculator.pdfwww.attra.ncat.org ATTRA Page 3
General farm calculators California Agricultural Pumping Eﬃciency Program Pumping Alberta Agriculture Food and Rural Cost Analysis Development Crop Calculators This tool analyzes the potential cost This calculator offers you a large selection savings for retrofitted electric-powered of agricultural calculators including a fertil- water pumps. izer cost estimator and a farm machinery www.pumpeﬃciency.org/Pumptesting/ calculator, among many others. costanalysis.asp#assumed www.agric.gov.ab.ca/app19/calc/index. jsp?type=Crop C-Plan Carbon Footprint Calculator The C-Plan Carbon Calculator, created by NRCS Tools by Landuse farmers in central Scotland, allows you to This is a large list of planning tools and quickly and easily enter the data for the land spreadsheets including fuel-use estimators, you manage and obtain an estimate of the various irrigation systems cost tools and fenc- greenhouse gas emissions for your business. ing cost calculators, among many others. www.cplan.org.uk/calculator.asp www.economics.nrcs.usda.gov/technical/ tools/index.html#Irrigation Noble Foundation Agricultural Tools This page contains links to several agricul- Martindale’s Calculators Online ture-related tools including calculators for Center: Agriculture estimating fertilizer spread rates and costs, This Web site, developed by Martindale’s feeding rations and grazing carrying capac- Reference Desk, includes an extensive col- ities, among many other topics. The Noble Foundation is an Oklahoma-based nonproﬁt lection of online calculators and design organization conducting agricultural, forage tools, including many with relevance to improvement and plant biology research. farm energy usage. www.noble.org/Tools/index.html www.martindalecenter.com/Calculators1_ 2_A.html Renewable energy Iowa State University I-FARM calculators I-FARM is a database-driven farming sys- tems simulation model that predicts eco- National Renewable Energy Labora- nomic returns and ecosystem impacts of tory Wind Energy Finance Calculator farm operations, integrating both crop and This online tool allows you to enter wind livestock components. and power data to calculate a wind project’s capacity factor. The calculator provides http://i-farmtools.org a quick, detailed economic evaluation of potential utility-scale wind energy projects. Agriculture Cost Estimator http://analysis.nrel.gov/windﬁnance/ The Agriculture Cost Estimator, hosted by login.asp AgWeb.com, a division of Farm Journal Media, Inc., allows you to quickly compare Windustry Wind Project Calculator the cost of using propane gas to the cost of This spreadsheet assists you in evaluating using other energy sources for grain drying the economics of installing a wind turbine to and irrigation pumping in your operation. provide electricity for your farm and home. www.agweb.com/Propane_Calc.aspx The program estimates the cash ﬂows forPage 4 ATTRA Farm Energy Calculators: Tools for saving money on the farm
investing in a wind turbine and the rate of The Solar Estimatorreturn on cash investments. This is a Micro- This resource, offered by the U.S. Depart-soft Excel spreadsheet that uses macros. ment of Energy, the American Solar Energywww.windustry.com/calculator/default.htm Society and the Solar Electric Power Asso- ciation, provides an idea of price, savingsRETScreen International Wind Energy and system size speciﬁc to your geographicProject Model location.The RETScreen Clean Energy Project www.ﬁndsolar.com/index.Analysis Software is a unique decision sup- php?page=rightformeport tool developed with the contribution ofnumerous experts from government, indus-try and academia. The software, provided Texas State Energy Conservation Oﬃcefree of charge, can be used worldwide to Energy Calculators and Softwareevaluate the energy production and savings, This site includes a photovoltaic systemcosts, emission reductions, ﬁnancial viabil- economics calculator, a solar water heatingity and risk for various types of renewable- calculator and two greenhouse gas pollutionenergy and energy-efﬁcient technologies, calculators.or RETs. The RETScreen Wind Energy www.inﬁnitepower.org/calculators.htmProject Model can be used worldwide toeasily evaluate the energy production, life-cycle costs and greenhouse gas emissions Biofuels and biomassreduction for central-grid, isolated-grid and calculatorsoff-grid wind energy projects ranging in sizefrom large-scale, multi-turbine wind farms Biodiesel Cash Flow/Incometo small-scale, single-turbine wind and Statement Worksheetdiesel hybrid systems. This worksheet, developed by the Montanawww.retscreen.net/ang/g_win.php State University Agricultural Marketing Pol- icy Center, allows you to compare small-scaleBergey Windpower Small Wind oilseed processing and biodiesel productionProject Calculator options based on their speciﬁc situation.This cash ﬂow spreadsheet model, from www.ampc.montana.edu/Bergey Windpower, a supplier of small energyinformation.htmlwind turbines, can be used for both resi-dential and commercial applications. It is West Midlands Biodiesel Economica useful tool for determining payback andrate of return. Evaluation Calculator This calculator helps you assess the potentialwww.bergey.com/Technical.htm economic viability of producing biodiesel and oilseed rape oil in farm operations.National Renewable Energy Bioenergy West Midlands aims to promoteLaboratory PV WattsResearchers at the National Renewable activity in, and markets for, bioenergy inEnergy Laboratory developed PVWATTS the West Midlands area of the United King-to help non-experts quickly obtain perfor- dom. BioenergyWM encompasses threemance estimates for grid-connected photo- main market areas, namely biomass, biogasvoltaic systems. and biofuel (bioethanol and biodiesel).http://rredc.nrel.gov/solar/calculators/ www.bioenergywm.org/documents/PVWATTS/version2/#directions Biofuels%20Calculator.xlswww.attra.ncat.org ATTRA Page 5
EERE Theoretical Ethanol Yield EERE Energy Cost Calculators Calculator These calculators, developed by the U.S. This tool, from the U.S. Department of Department of Energy’s Federal Energy Energy’s Federal Energy Management Pro- Management Program, allows you to gram, approximates the theoretical ethanol enter your own input values, such as util- yield in gallons per dry ton of feedstock ity rates and hours of use, to estimate the based on the dry mass percentage of the energy cost savings from buying a more material that is sugar components. efﬁcient product. www1.eere.energy.gov/biomass/ethanol_ www1.eere.energy.gov/femp/procurement/ yield_calculator.html eep_eccalculators.html California Biomass Collaborative Cost of Energy Calculator USDA Fuel Value Calculator The Cost of Energy Calculator computes the The Fuel Value Calculator is a tool in PDF annual cost of energy in both current and format that can be used to compare typical constant dollars for a generic biomass power unit costs of various fuels including wood, plant using a revenue-requirements meth- natural gas, electricity, switchgrass and pro- odology. The calculator includes spread- pane, among others. sheet models for combined heat and power www.fpl.fs.fed.us/documnts/techline/fuel_ operations, biomass gasiﬁcation operations value_calculator.pdf and biogas operations. http://faculty.engineering.ucdavis.edu/ jenkins/CBC/Calculator/index.html Penn State University Energy Cost Calculator The Energy Cost Calculator is an Excel Energy eﬃciency calculators spreadsheet with two worksheets. By Alliant Energy Energy Eﬃciency entering the unit price for various fuels, Calculators you can determine the cost per million This Web page provides a list of energy efﬁ- British thermal units. It also provides ciency calculators for residential, small busi- the energy content and heat conversion ness, commercial and industrial equipment efﬁciency information for varying fuels. that includes air conditioning and lighting. http://energy.cas.psu.edu/ www.alliantenergy.com/docs/groups/public/ costcomparator.html documents/pub/p013446.hcspPage 6 ATTRA Farm Energy Calculators: Tools for saving money on the farm