Meeting impact calculation

Provided in real time by Brighter Planet at 07:56AM UTC on Wednesday, May 24, 2017 for timeframe beginning 2017-01-01 and ending 2018-01-01.

Characteristics

Brighter Planet is performing this calculation based on the following characteristics of this meeting as provided in the request:

Characteristic Input Interpretation
Area 1150 1,150.0 m²
Zip code 43240 43240
Duration 15.5 15.5 s

Calculation

This calculation uses version of Brighter Planet's meeting carbon model. The meeting emission estimate is the anthropogenic emissions from meeting building energy use. It includes CO2 emissions from direct fuel combustion and indirect fuel combustion to generate purchased electricity.

Calculations are performed adaptively, so methodology will vary depending on meeting characteristics. Impact values, listed below, are based on a number of input factors, which in turn are based on others, and so forth. In each case, the methodology used in the calculation is specified, and, wherever possible, the source code of the method is displayed.

  1. Carbon

    Conclusion: 0.8 kg

    Method: from fuel uses, electricity emission factor, date, and timeframe.

    date = if date.is_a?(Date) then
      date
    else
      Date.parse(date.to_s)
    end
    if timeframe.include?(date) then
      ((((natural_gas_use * Fuel.find("Pipeline Natural Gas").co2_emission_factor) + (fuel_oil_use * Fuel.find("Distillate Fuel Oil No. 2").co2_emission_factor)) + (electricity_use * electricity_emission_factor)) + (district_heat_use * Fuel.find("District Heat").co2_emission_factor))
    else
      0
    end
    
  2. Electricity emission factor

    Conclusion: 0.7361958239353155

    Method: from egrid subregion.

    (egrid_subregion.electricity_emission_factor / (1 - egrid_subregion.egrid_region.loss_factor))
    
  3. Natural gas use

    Conclusion: 0.24072018819444446

    Method: from census division, area, and duration.

    (((census_division.meeting_building_natural_gas_intensity * area) * duration) / 3600.0)
    
  4. Fuel oil use

    Conclusion: 0.0056489405555555545

    Method: from census division, area, and duration.

    (((census_division.meeting_building_fuel_oil_intensity * area) * duration) / 3600.0)
    
  5. Electricity use

    Conclusion: 0.4020156423611111

    Method: from census division, area, and duration.

    (((census_division.meeting_building_electricity_intensity * area) * duration) / 3600.0)
    
  6. District heat use

    Conclusion: 0.0

    Method: from census division, area, and duration.

    (((census_division.meeting_building_district_heat_intensity * area) * duration) / 3600.0)
    
  7. Egrid subregion

    Conclusion: RFCW

    Method: from zip code.

    zip_code.egrid_subregion
    
  8. Census division

    Conclusion: 3

    Method: from state.

    state.census_division
    
  9. Date

    Conclusion: 2017-01-01

    Method: from timeframe.

    timeframe.from
    

Estimate provided by Brighter Planet CM1. Calculations are performed using data from a variety of public sources. To cite this estimate, credit Brighter Planet, "Meeting impact calculation." <http://impact.brighterplanet.com/meetings?area=1150&duration=15.5&timeframe=2017-01-01%2F2018-01-01&zip_code=43240>, retrieved 2017-05-24T07:56:15Z.