ASHRAE Journal - November 2022 - 34
FEATURE
FIGURE 1. Current CHP installations in the U.S. by fuel type. Waste fuels include waste heat, black liquor, municipal solid
waste and industrial off gases. Other fuels used include hydrogen, geothermal, solar and unknown fuel types. Source: DOE CHP
Installation Database (U.S. installations through December 31, 2021 as of August 2022).3
pathways, as not all strategies will be 100% successful
or applicable. Deep decarbonization of the economy is
likely to rely on the combination of converting end-use
applications to zero carbon electricity and the use of low
to zero carbon fuels. As a combustion technology, CHP is
sometimes not seen as part of the energy transition and
certainly not as part of the fi nal energy solution, a view
challenged by several factors:
* CHP is fuel fl exible with a long track record of effi
ciently using low and zero carbon fuels;
* CHP is the most effi cient way to generate power and
thermal energy, and natural gas CHP can deliver signifi -
cant CO2 emissions reductions today and can continue to
reduce emissions in the near- to mid-term;
* Net zero carbon-fueled CHP can decarbonize thermal
end-uses in industrial and commercial facilities that are
diffi cult or too costly to electrify;
* Net zero carbon-fueled CHP can decarbonize
critical facilities that need dispatchable on-site power
for long duration resilience and operational reliability;
and
* Net zero carbon-fueled CHP can serve as a dispatchable
and emissions-free resource (DEFR) to support the
long-run resource adequacy of a highly renewable grid.
Current Status of CHP
CHP has long been used in industry and commercial/
institutional applications to provide reliable heat, cooling
and power with high effi ciency and low emissions. The
81.5 gigawatts (GW) of existing industrial CHP deployed
at over 4,700 industrial plants, district energy systems
and commercial businesses in the U.S. currently save an
estimated 1.3 quads (1,372 PJ) of fuel and 218 million tons
(198 MMT) of CO2 emissions annually.‡ Industrial applications
represent 86% of existing CHP capacity, and CHP is
used in industries with high process thermal demands
such as chemical manufacturing, refi ning, pulp and
paper, and food processing. Use of CHP has been growing
in commercial and institutional applications and is
particularly valued for providing resilient heat and power
to critical infrastructure such as hospitals, universities,
military facilities and data centers.
‡Data compiled from the U.S. Department of Energy Combined Heat and Power Installation Database hosted by ICF International.
https://doe.icfwebservices.com/chp
34
ASHRAE JOURNAL ashrae.o rg N O V E M B E R 2 0 2 2
https://doe.icfwebservices.com/chp
https://www.ashrae.org/
ASHRAE Journal - November 2022
Table of Contents for the Digital Edition of ASHRAE Journal - November 2022
Contents
ASHRAE Journal - November 2022 - Intro
ASHRAE Journal - November 2022 - Cover1
ASHRAE Journal - November 2022 - Cover2
ASHRAE Journal - November 2022 - 1
ASHRAE Journal - November 2022 - Contents
ASHRAE Journal - November 2022 - 3
ASHRAE Journal - November 2022 - 4
ASHRAE Journal - November 2022 - 5
ASHRAE Journal - November 2022 - 6
ASHRAE Journal - November 2022 - 7
ASHRAE Journal - November 2022 - 8
ASHRAE Journal - November 2022 - 9
ASHRAE Journal - November 2022 - 10
ASHRAE Journal - November 2022 - 11
ASHRAE Journal - November 2022 - 12
ASHRAE Journal - November 2022 - 13
ASHRAE Journal - November 2022 - 14
ASHRAE Journal - November 2022 - 15
ASHRAE Journal - November 2022 - 16
ASHRAE Journal - November 2022 - 17
ASHRAE Journal - November 2022 - 18
ASHRAE Journal - November 2022 - 19
ASHRAE Journal - November 2022 - 20
ASHRAE Journal - November 2022 - 21
ASHRAE Journal - November 2022 - 22
ASHRAE Journal - November 2022 - 23
ASHRAE Journal - November 2022 - 24
ASHRAE Journal - November 2022 - 25
ASHRAE Journal - November 2022 - 26
ASHRAE Journal - November 2022 - 27
ASHRAE Journal - November 2022 - 28
ASHRAE Journal - November 2022 - 29
ASHRAE Journal - November 2022 - 30
ASHRAE Journal - November 2022 - 31
ASHRAE Journal - November 2022 - 32
ASHRAE Journal - November 2022 - 33
ASHRAE Journal - November 2022 - 34
ASHRAE Journal - November 2022 - 35
ASHRAE Journal - November 2022 - 36
ASHRAE Journal - November 2022 - 37
ASHRAE Journal - November 2022 - 38
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ASHRAE Journal - November 2022 - 72
ASHRAE Journal - November 2022 - Cover3
ASHRAE Journal - November 2022 - Cover4
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