ASHRAE Journal - December 2019 - 38

SOLVING PROBLEMS

A Strategy to Create a Lower Carbon Future

Integrating CHP Systems,
Renewable Energy to
Increase Resilience
BY MARY KATE MCGOWAN, ASSOCIATE EDITOR, NEWS

From distributed energy resources to thermal and power generation to electric and
gas grid operation to microgrids, several factors are converging to force transformation in the energy industry. Change has accelerated in the last five years moving the
utility industry from a centralized, scale-focused standardized model toward a digital, distributed, low-carbon, resilient and customer-focused model. This is creating culture shock in the utility business, which is now dealing with decarbonization,
decentralization, microgrids and even blockchain customer-centric sales models.
One energy pathway, Combined Heat and Power
(CHP) systems, is becoming an important part of this
new energy mix as the drive to create resilient, efficient
and low-carbon solutions increases. CHP systems can
economically help cities, states and businesses reach
zero carbon energy goals by 2050 using varying strategies to achieve decarbonization and maintain resilience.
Richard Sweetser, Life Member ASHRAE, said there
are three dominating factors driving the adoption
of CHP systems: economics, decarbonization and
resilience.
"CHP is one of the lowest cost and lowest carbon emissions way to create electricity today and can be well
into the future," said Sweetser, president of EXERGY
Partners Corp., who serves as program subcommittee
chair for ASHRAE Technical Committee 1.10, Combined
Heat and Power Systems.
38

ASHRAE JOURNAL

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D E C E M B E R 2 0 19

CHP systems work well with another energy strategy
jurisdictions are heavily leaning on: solar and wind
power. Both intermittent solar and wind power supplies
can be integrated with CHP systems to create stable,
low-carbon hybrid systems.
Integration of intermittent renewable resources into
the grid, buildings and microgrids is still a relatively
new trend, according to Sweetser. End-users have
developed hybrid solutions that incorporate CHP,
solar photovoltaics and batteries. In this configuration,
high on-peak daytime electric demand pays for the
photovoltaic (PV) and battery combination, and a downsized CHP plant provides long-term energy resilience
and improves project payback, according to Sweetser.
Although some jurisdictions are focusing on allelectric solutions based on 100% renewable energy to
achieve zero carbon goals, it is unclear whether they


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ASHRAE Journal - December 2019

Table of Contents for the Digital Edition of ASHRAE Journal - December 2019

Contents
ASHRAE Journal - December 2019 - Intro
ASHRAE Journal - December 2019 - CT1
ASHRAE Journal - December 2019 - CT2
ASHRAE Journal - December 2019 - Cover1
ASHRAE Journal - December 2019 - Cover2
ASHRAE Journal - December 2019 - 1
ASHRAE Journal - December 2019 - Contents
ASHRAE Journal - December 2019 - 3
ASHRAE Journal - December 2019 - 4
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ASHRAE Journal - December 2019 - Cover3
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