Hydrogen Production Monitoring Checklist 5-EPA

Subpart P, Greenhouse Gas Reporting Program

United States
Environmental Protection
Agency

What Must Be Monitored for Each Hydrogen Production Unit?

If NOT using a CEMS, measure these parameters on a monthly basis

(unless otherwise noted)...

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Volume or mass of gaseous fuel or
feedstock used (standard cubic feet
[scf] or kg)

Carbon content of gaseous fuel or
feedstock (kilograms [kg] C per kg of fuel
or feedstock) (annually for standard
hydrocarbons, weekly for other non-
standard hydrocarbons)

Molecular weight of gaseous fuel or
feedstock (kg/kg-mole) (annually for
standard hydrocarbons, weekly for
other non-standard hydrocarbons)

Volume or mass of liquid fuel or
feedstock used (gallons or kg)

Carbon content of liquid fuel or
feedstock (kg C per gallon)

Mass of solid fuel or feedstock used (kg)

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Carbon content of solid fuel or
feedstock (kg C per kg of feedstock)

Quarterly quantity of carbon dioxide
collected and transferred off site in either
gas, liquid, or solid forms (kg)

Annual quantity of carbon other than
carbon dioxide collected and transferred
off site in either gas, liquid, or solid
forms (kg)

Annual quantity of hydrogen produced
(metric tons)

Annual quantity of ammonia produced, if
applicable (metric tons)

Annual quantity of methanol produced, if
applicable (metric tons)

If using a CEMS:

In addition to the monitoring requirements under 40 CFR subpart C for the
Tier 4 Calculation Methodology, measure these parameters...

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Annual quantity of hydrogen produced
(metric tons)

Quarterly quantity of carbon dioxide
collected and transferred off site in
either gas, liquid, or solid forms (kg)

Annual quantity of methanol
produced, if applicable (metric tons)

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Annual quantity of ammonia produced, if
applicable (metric tons)

Annual quantity of carbon other than
carbon dioxide collected and transferred
off site in either gas, liquid, or solid
forms (kg)

Hydrogen Production Monitoring Checklist
Greenhouse Gas Reporting Program

40 CFR 98, subpart P
April 2018

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See also the information sheet for Hydrogen Production at:

https://www.epa.gov/ghereporting/Information-Sheet-Sxibpart-P-Hvdrogen-Prodiiction

This document is provided solely for informational purposes. It does not provide legal advice,
have legally binding effect, or expressly or implicitly create, expand, or limit any legal rights,
obligations, responsibilities, expectations, or benefits in regard to any person. This information
is intended to assist reporting facilities owners in understanding key provisions of the
Greenhouse Gas Reporting Program.

Hydrogen Production Monitoring Checklist
Greenhouse Gas Reporting Program

Page 2 of 2

40 CFR 98, subpart P
April 2018


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