## Instructions

Step 1 Assign an ID number to each engine at your facility Step 2 For each**Non-Emergency (Prime) Engine**, identify the Engine ID, Engine Type (select from drop down box), and Engine Size in Step 3 For each**Emergency Engine**, identify the Engine ID, Engine Type (select from dropdown box), and Engine Size in Step 4 For each**Auxiliary Heater**, identify the maximum rating and fuel type in**Table 3**below. Step 5 Click on the "Output" tab below to review your facility's Potential to Emit



### Table 1 **Engine Information - Non Emergency (Prime) Engines - ONLY**
**Engine ID (1,2, 3....) Engine Type** 

Select Select Select Select Select Select Select Select Select Select



### Table 2 **Engine Information - Emergency Engines - ONLY**
**Engine ID (1,2, 3....) Engine Type** 

Select Select Select Select Select Select Select Select Select Select



### Table 3 

## Potential to Emit Calculator for Engines (Spark Ignition Engines)

This spreadsheet helps estimate a facility's potential to emit. It is provided for the convenience of the permitted community. Emission factor sources are subject to revision or correction. It is the permittee's

responsibility to determine their emissions. The permittee should consult with the reviewing authority to determine the appropriateness of this calculator for its source.**Auxiliary Heaters**

**Unit ID Maximum Rating (MMBtu/hr)** 

Total MMBtu/hr 0, identify the Engine ID, Engine Type (select from drop down box), and Engine Size in**Table 1**below. , identify the Engine ID, Engine Type (select from dropdown box), and Engine Size in**Table 2**below. below.

Convert maximum power in kW to HP: kW 0HP Convert maximum power in HP to kW: 1000HP 745.7kW ***This does not convert eletrical output in kW to mechanical output in HP. Please contact your reviewing authority for assitance.

**Engine size (bhp - mechanical)**

0 0 0 0 0 0 0 0 0

**Engine Size (bhp - mechanical)** 0 0 0 0 0 0 0 0**Note: For generator sets, the engine size is not the electrical output of the engine. Input the maximum power of the engine. 

## Potential to Emit Calculator for Engines (Spark Ignition Engines) 7/2/2014 

### This spreadsheet helps estimate a facility's potential to emit. It is provided for the convenience of the permitted community. Emission factor sources are subject to revision or correction. It is the permittee's

responsibility to determine their emissions. The permittee should consult with the reviewing authority to determine the appropriateness of this calculator for its source.**Fuel Type*****This does not convert eletrical output in kW to mechanical output in HP. Please contact your reviewing authority for assitance. 

### This spreadsheet helps estimate a facility's potential to emit. It is provided for the convenience of the permitted community. Emission factor sources are subject to revision or correction. It is the permittee's***This does not convert eletrical output in kW to mechanical output in HP. Please contact your reviewing authority for assitance.Attainment/Unclassifiable

Moderate Nonattainment Serious NonattainmentAttainment/Unclassifiable Attainment/Unclassifiable

Moderate Nonattainment Marginal Nonattainment Serious Nonattainment Moderate Nonattainment Serious Nonattainment Severe Nonattainment Extreme NonattainmentCO NOX SO2 VOC PM PM10 PM2.5

0 0 0 0 0 0 0

**Potential to Emit - TPY** 

## Potential to Emit Calculator for Engines (Spark Ignition Engines) 7/2/2014**Emissions Factors (g/kw-hr) CO**  **NOX**

Select 0 0 Diesel - Non Emergency (Prime), Model Year 2014 or later, Rating <75HP 5 4.7 Diesel - Non Emergency (Prime), Model Year 2014 or later, Rating 75<HP≤751HP 3.5 0.4 Diesel - Non Emergency (Prime), Model Year 2014 or later, Rating >751 HP, generator set 3.5 0.67 Diesel - Non Emergency (Prime), Model Year 2014 or later, Rating >751 HP, non-generator set 3.5 3.5 Diesel - Non Emergency (Prime), Model Year 2007-2013, Rating <50 HP 5.5 9.2 Diesel - Non Emergency (Prime), Model Year 2007-2013, Rating 50≤HP<100 5 7.5 Diesel - Non Emergency (Prime), Model Year 2007-2013, Rating≤100HP<175 5 4 Diesel - Non Emergency (Prime), Model Year 2007-2013, Rating 175≤HP=<751HP 3.5 4 Diesel - Non Emergency (Prime), Model Year 2007-2013,Rating >751 HP 3.5 6.4 Diesel - Emergency 4.063289 18.85658 Rich Burn LPG, Emergency 15.83953 9.665518 Lean Burn LPG, Emergency 23.71671 17.37239 Rich Burn Natural Gas - Emergency 15.83953 9.665518 Lean Burn Natural Gas - Emergency 23.71671 17.37239 Gasoline - Emergency 4.233606 6.691045 Rich Burn LPG, Non-Emergency (Prime) 6.5 3.8 Lean Burn LPG, Non- Emergency (Prime) 2.682044 1.341022 Natural Gas, Non-Emergency (Prime) 2.682044 1.341022 Gasoline, Non Emergency (Prime) 6.5 3.8 Landfill/Digester Gas, Non Emergency (Prime) 6.705109 2.682044 Rich Burn LPG 2006 or earlier 15.83953 9.665518 Lean Burn LPG pre-2008 23.71671 17.37239 Lean Burn LPG Emergency <130 HP 518.9755 13.41022 Lean Burn LPG Emergency >=130HP 5.364087 2.682044 Natural Gas pre-2008, rich burn 15.83953 9.665518 Natural Gas pre-2008, lean burn 23.71671 17.37239 Natural Gas Emergency <130 HP 518.9755 13.41022 Natural Gas Emergency >=130 HP 5.364087 2.682044
Emission Factors are taken from the NSPS standards and AP-42. These factors are intended to be conservative. Actual emissions may be lowered depending on the exact model year and power rating for an individual engine.Owner/operators may use a lower EF if the specific NSPS standard for their engine is lower than the EF used here. Where needed, the following conversions were used: 1 hp = 0.7457 kW, 1 lb = 453.592 g, average BSFC = 7000 Btu/hphr. 

## Potential to Emit Calculator for Engines (Spark Ignition Engines) 7/2/2014**SO2 VOC**  **PM PM10**  **PM2.5**

0 0 0 0 0 0.007381 0.19 0.03 0.03 0.03 0.007381 0.19 0.02 0.02 0.02 0.007381 0.19 0.03 0.03 0.03 0.007381 0.19 0.04 0.04 0.04 0.007381 1.502444 0.8 0.8 0.8 0.007381 1.502444 0.4 0.4 0.4 0.007381 1.502444 0.3 0.3 0.3 0.007381 1.3 0.2 0.2 0.2 0.007381 1.3 0.2 0.2 0.2 0.007381 1.502444 1.338209 1.338209 1.338209 0.0025040.126035 0.082647 0.082647 0.082647 0.0025040.502437 0.039076 0.0390760.039076 0.0025040.126035 0.082647 0.082647 0.082647 0.0025040.502437 0.039076 0.0390760.039076 0.359492 9.124152 0.438568 0.438568 0.438568 0.0025040.126035 0.082647 0.082647 0.082647 6.5 0.0025040.938715 0.039076 0.0390760.039076 0.0025040.938715 0.039076 0.0390760.039076 0.359492 9.124152 0.438568 0.438568 0.438568 6.5 0.002504 1.341022 0.082647 0.082647 0.082647 0.0025040.126035 0.082647 0.082647 0.082647 0.0025040.502437 0.039076 0.0390760.039076 0.0025040.502437 0.082647 0.082647 0.082647 0.002504 1.341022 0.082647 0.082647 0.082647 0.0025040.126035 0.082647 0.082647 0.082647 0.0025040.502437 0.039076 0.0390760.039076 0.0025040.502437 0.082647 0.082647 0.082647 0.002504 1.341022 0.082647 0.082647 0.082647
Emission Factors are taken from the NSPS standards and AP-42. These factors are intended to be conservative. Actual emissions may be lowered depending on the exact model year and power rating for an individual engine.Owner/operators may use a lower EF if the specific NSPS standard for their engine is lower than the EF used here. Where needed, the following conversions were used: 1 hp = 0.7457 kW, 1 lb = 453.592 g, average BSFC = 7000 Btu/hp

## Potential to Emit Calculator for Engines (Spark Ignition Engines)Emission Factors are taken from the NSPS standards and AP-42. These factors are intended to be conservative. Actual emissions may be lowered depending on the exact model year and power rating for an individual engine. Owner/operators may use a lower EF if the specific NSPS standard for their engine is lower than the EF used here. Where needed, the following conversions were used: 1 hp = 0.7457 kW, 1 lb = 453.592 g, average BSFC = 7000 Btu/hp-Non Emergency Diesel Engines

Engine ID Engine Size (BHP) Convert to KW

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Emergency Engines Engine ID Engine Size (BHP) Convert to KW

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0VLOOkUP CO NOX

Select 0 0 Select 0 0 Select 0 0 Select 0 0 Select 0 0 Select 0 0 Select 0 0 Select 0 0 Select 0 0 Select 0 0 **Total Emissions from Prime Engines 0**  **0**

Select 0 0 Select 0 0 Select 0 0 Select 0 0 Select 0 0 Select 0 0 Select 0 0 Select 0 0 Select 0 0 Total Emissions from Emergency Engines 0 0

Natural Gas Boiler 0 0 0 

## Potential to Emit Calculator for Engines (Spark Ignition Engines) 7/2/2014SO2 VOC PM PM10 PM2.5

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 **0 0**  **0 0**  **0**

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 **TPY**