Links to Online Energy Calculators

A Performance Calculator For Grid-Connected Pv Systems V1:   
A Performance Calculator For  Grid-Connected Pv Systems V2:   / (added 09/2005)
BTU Calculator:  Version 1 is the original PVWATTS. The user chooses a state from a map or a text list, and then the city of interest. The calculations may be done using the default system parameters, or the user may specify the PV system size, local electric costs, whether a fixed or tracking PV array, and the PV array tilt and azimuth angles. PVWATTS calculates monthly and annual energy production in kWh and monthly savings in dollars. The user may also choose to output hourly AC power data, which can saved to a text file. Version 1 can be run for Guam or Puerto Rico as well as the 50 states. 
Business Energy Analyzer :   
Calculate Your Solar Energy Needs:  How big of a stove do you need?
Calenergy.Org:  The Business Energy Analzyer is designed to provide a comprehensive analysis of energy use in your business along with customized energy efficiency improvement recommendations. The calculator prepares a report, based on information submitted by the user, showing investments with greatest savings and those with the fastest payback on investment. Information on multiple buildings may be stored and updated for use in future analyses.
Canadian Small Wind Energy Calculator:  Solar Mike’s Web Site SolarScript© PV System Design On-Line Calculator v2.4
Carbon Dioxide Calculator:  Many state electrical utilities have implemented programs where operators of photovoltaic systems connected to the electrical power grid can sell power to the utility operator. PVWATTS calculates electrical energy produced by a grid-connected photovoltaic system.
Carbon Dioxide Calculator :   is a Web site developed to help you determine the cost and benefits of installing solar or wind energy on your home or building. The Web site also features a database of contractors to help you select an experienced building professional. Developed under funding from the California Energy Commission’s Renewable Energy Consumer Education grant program.
Carboncounter :  is a Web-based calculator developed for the Canadian Wind Energy Association (CANWEA). This online wind calculator helps consumers determine the cost and benefits of installing small wind energy systems for their home, farm or building.
Climate Change Calculator – American Forests:  This CO2 calculator, based on the ChoCO2 studies of GEIC (the Global Environment Information Centre in Tokyo), calculates CO2 emissions from everyday Japanese electrical appliances and automobiles based on energy consumption figures. By marking the appliances you use and filling out the required information, you can get a quick idea of how you can impact on the environment through your lifestyle.
Co2 Calculator :  Carboncounter.org is an individual carbon dioxide emissions calculator generated by The Climate Trust, a pioneering non-profit organization that invests in high-quality projects that reduce or avoid greenhouse gas emissions, and Mercy Corps, an international relief and development agency.
Co2 Reduction Calculator:  This tool prepared for the Canadian government calculates personal greenhouse gas emissions and lists mitigation strategies. Using a graphical example of a Canadian community, the user answers a series of questions on home heating and cooling, appliances, transportation and recreation activities. The calculator estimates personal CO2 emissions, offers suggestions for reducing emissions, and shows reductions achieved for those actions. The reporting function provides a graphical emissions breakdown for each feature. Available online or as a downloadable file.
Co2 Reduction Calculator :  Calculates tons of carbon dioxide emitted by your household this year, and number of trees that would need to be planted to offset those emissions.  / (added 09/2005)
Energy Advisor / Home Energy Saver :  This calculator estimates the time and cost required to phase out CO2 production with a range of renewable energy technologies and carbon sinks. / (added 09/2005)
Energy Conversion Calculator:  This calculator estimates the time and cost required to phase out CO2 production with a range of renewable energy technologies and carbon sinks. / (added 09/2005)
Energy To Carbon Dioxide Converter :  The emissions calculator tabulates a user’s aggregate monthly emissions of seven air pollutants (in pounds) from electricity and natural gas consumption, airplane trips, and vehicle miles traveled (auto or sport utility vehicle/truck) and compare them with average national emissions. Emissions profiles may be saved and updated monthly to track performance. The site also offers suggestions on reducing emissions. / (added 09/2005)
Energy To Carbon Dioxide Converter From National Energy Foundation:  new link — The Home Energy Saver is designed to help you identify the best ways to save energy in your home, and find the resources to make the savings happen. The Home Energy Saver asks for a detailed description of your home, and then quickly computes energy use on-line. Results are provided in dollars, kilowatt-hours and CO2 emissions for your house and the most energy efficient house. By changing one or more features, you can estimate how much energy and money you can save and how much pollution you can prevent by improving your home’s energy efficiency. In addition, the Home Energy Saver’s "Making it Happen" and Energy Librarian" modules connect users to an expanding array of "how-to" information resources throughout the Internet.
Energy To Carbon Dioxide Converter From National Energy Foundation :  energy converter
Energy Usage Worksheet:  Converts emissions from electricity consumption and transportation activities to equivalent amounts and provides information on ways U.K. households can reduce their energy consumption.
Findsolar.Org:  A Worksheet to help you figure out what you energy needs are.
Greenhouse Gas Equivalencies Calculator – US Ctc Gateway :  Calculates the emissions savings from using Australian energy star equipment. Results list savings in kilowatt-hours, coal needed to provide this energy, kilograms CO2, and equivalent car travel. 
Home Analyzer :  This site provided by the US Environmental Projection Agency can be used to calculate a household’s greenhouse gas emissions, as well as the impact of measures implemented to reduce these.
How Much Does Your Vehicle Pollute? :  new link — Determines your auto’s carbon dioxide, sulfur dioxide, and nitrogen oxide emissions. Will calculate values specific to your mileage, or typical for the year and make of your auto. Includes additional information explaining the significance of the result and what can be done to lower emissions.
Hydrogen Equivilant Calculator:  This utility will assist you in referencing Hydrogen equivalents at standard temperature and pressure. 
Iowa Solar Calculator:   
Kerychip – Photovoltaic Software :  Free Download – photovoltaic sizing calculations programs -Device construction, development of analogue and digitals circuits, print and schematic design -Development of micro controller solutions -Data acquisitions – analog and digital signal 
Lishines.Org:  is a Web site developed for Long Island, NY to help you determine the cost and benefits of installing solar on your home or building. The Web site also features a database of contractors to help you select an experienced building professional. This Web site was initially developed in 2003 under funding from RELI & the DOE Million Solar Roofs grant program. In July, 2005 Energy Matters LLC licensed content to RELI, who now administers and maintains the site / (added 09/2005)
Lmno Engineering :  new link — Have calculators for fluid flow and formula information, good for hydro calculations or water pumping applications (things like friction loss through pipes, etc.). 
Personal Co2 Calculation:  A worksheet to determine yearly direct personal carbon dioxide emissions. Results include yearly personal carbon dioxide emissions and a per capita comparison chart to other industrialized countries. Suggestions on reducing emissions while saving money are also provided. / (added 09/2005)
Power Profiler :  The Power Profiler helps users determine the specific air emissions impacts of electricity used to power their home or business using actual monthly energy use information (provided by the user), average monthly use, or default values for monthly residential and commercial electricity use.
Safe Climate’s Calculator:  The SafeClimate carbon footprint calculator allows you to determine carbon dioxide emissions from major sources: home energy consumption and transportation by car and plane.
See The Safeclimate Carbon Dioxide Footprint Calculator Description In The Individuals Section, Above :   
The Co2 Calculator :  Calculates CO2 emissions from everyday Japanese electrical appliances and automobiles based on energy consumption figures. / (added 09/2005)
Travel Matters Emissions Calculators :  TravelMatters! is a new website from the Center for Neighborhood Technology that provides a trio of resources – interactive emissions calculators, online emissions maps, and a wealth of educational content – that emphasize the relationship between more efficient transit systems and lower greenhouse gas emissions. TM’s Emissions Calculator allows users to conceptualize how much carbon dioxide they emit due to their travel decisions. The site also offers transportation emissions by county for all contiguous states.
Units Units Units:  How to convert them / (added 09/2005)
Water Consumption Calculator:   

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