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1 THE GREEN BEHIND THE CLOUD
The green
behind
the cloud

Cloud has moved from “nice-to-
have” to “must-have”. But not all
approaches to cloud migration
are equal. Cloud migration can
deliver a double helix effect
of shareholder and stakeholder
value—simultaneously
reducing costs and carbon
emissions if approached from
a sustainability perspective.
Leading to a greener planet
and a boost in profitability.
Authors
Pavel Ponomarev
Peter Lacy Paul Daugherty
Kishore Durg
Senior Managing Director
Lead Intelligent Cloud & Infrastructure
Accenture Technology
Kishore is the Growth and Strategy Lead for
Accenture Technology Services where he
helps in Ventures and Acquisitions, Technology
strategy and Strategic Growth Initiatives.
Senior Managing Director
European Lead & Global Sustainability Lead
Accenture Strategy
Peter advises leaders of Fortune 500 companies
on strategies related to growth, technology,
innovation and sustainability.
Principal Director
Sustainability, Accenture Strategy
Pavel leads the North American Sustainability
Strategy practice and has deep expertise in
technology and sustainability.
Group Chief Executive
Technology, and CTO, Accenture
Paul Daugherty is Accenture’s chief technology
and innovation officer and leads the company’s
Technology Innovation and Ecosystem group.

Forecast for cloud
The business forecast is for more and more cloud with a chance of
significant savings...financial and carbon. With the proliferation of
data and devices, public cloud will only gather strength. Every
business will become a “cloud-first” business.
Consider this: The number of large-scale data centers is increasing
by 14% each year1
and public cloud spend will rise by 17% between
2019-2020.2
Some analysts estimate that 11.4% of the United States’
IT spend is dedicated to cloud, with China at 2.7% and catching up
rapidly.3
This double-digit growth comes with a price. Global data
center electricity consumption is nearly equivalent to the annual
consumption of the country of Spain.4,5
However, by pursuing a green approach, our Accenture analysis
suggests migrations to the public cloud can reduce global carbon
(CO2
) emissions by 59 million tons of CO2
per year. This represents
a 5.9% reduction in total IT emissions and equates to taking 22
million cars off the road. This magnitude of reduction can go a
long way in meeting climate change commitments, particularly
for data intensive businesses.

From Accenture’s experience supporting cloud migrations
for hundreds of clients, sustainable cloud positions companies
to deliver on financial targets. We’ve seen up to 30-40% total
cost of ownership (TCO) savings. Drivers like greater workload
flexibility, better server utilization rates, and more energy-efficient
infrastructure all make public clouds more cost efficient than
enterprise-owned data centers.
Outperforming peers through responsible
business practices:
Based on Accenture research, between 2013—2019, companies with
consistently high ratings for environmental, social and governance
(ESG) performance enjoyed 4.7x higher operating margins than low ESG
performers over the same period. High performers generated higher annual
total returns to shareholders, outperformingpeersby 2.3x. Over the past
several months, when global markets have faced tremendous pressures and
volatility, companies with high ESG scores have continued to outperform,
experiencing a cumulative relative return 6.3% higher than bottom
performers and facing lower volatility.
At Accenture, we practice what we preach: Today we run a full 95%
of our applications on the cloud. The migration led to $14.5 million
in benefits after the third year. Another $3 million in annualized costs
were saved by right-sizing service consumption.6

As importantly, cloud migrations also unlock new opportunities
like clean energy transitions enabled by cloud-based geographic
analyses, material waste reductions from better data insights, and
targeted medical R&D as a result of faster analytics platforms.
Glossary of Terms
SUSTAINABLE CLOUD—A technology platform that enables
organizations to tap on-demand public, private or hybrid computing
capabilities through virtual hardware, software and services.
Sustainable cloud focuses on the environmentally friendly operation
and use of cloud services through a proactive approach to lowering
carbon emissions and unlocking new responsible applications of
cloud technology.
PUBLIC CLOUD—Computing services provided by third-parties
and offered over the public Internet. They are typically available
for purchase on-demand.
FOURTH INDUSTRIAL REVOLUTION (4IR)—A term coined
by Klaus Schwab, Founder and Executive Chairman of the World
Economic Forum, in his book, “The Fourth Industrial Revolution”.
4IR technologies are characterized by a range of new technologies
that are fusing the physical, digital and biological worlds.
CLOUD-NATIVE APPLICATIONS—Designed to take full advantage
of on-demand computing, higher asset utilization rates, and multi-
tenant structures that allow multiple customers to be served with
one application installation.
CIRCULAR ECONOMY—The departure from traditional ‘take, make,
waste’ production and consumption systems to a system whereby
resources are kept in use for as long as possible, the maximum value
is extracted from them whilst in use, then products and materials are
recovered and regenerated at the end of each life-cycle.
Sustainability as the future of business:
Companies have historically driven financial, security, and agility benefits
through cloud, but sustainability is becoming an imperative. According to
the latest UNGC-Accenture Strategy CEO Study, more than 99% of CEOs
from large companies now agree that “sustainability issues are important
to the future success of their businesses.” Two-thirds view fourth industrial
revolution (4IR) technologies as a critical factor for accelerating
socioeconomic impact. 59% of CEOs say they are deploying low-carbon
and renewable energy across their operations today while 44% see
a net-zero future for their company in the next ten years.7

Toward greener cloud
Not all cloud migration approaches are created equal when it comes to
sustainability and one size certainly does not fit all. What do we mean
by that? The range of benefits possible depend on a company’s focus
around three things:
01 02 03
Select with
purpose
Build with
ambition
Innovate
further

Select with purpose
01
The first step towards a sustainable cloud-first journey begins
with selecting a carbon-thoughtful provider. Cloud providers
set different corporate commitments towards sustainability,
which in turn determine how they plan, build, power,
operate, and retire their data centers.
Carbon emissions can differ widely across providers even
though many providers have focused on driving down
energy consumption to standard benchmarks. Differences
arise from varying ranges of corporate investments
in renewable energy generation, the reusability and
recyclability of data center hardware, and advanced
analytics for better management of asset operations. And
cloud customer-facing services like transparent real-time
reporting of associated carbon emissions can help track
actuals against sustainability goals.
Things to consider when selecting a public cloud provider:
Carbon neutral or carbon negative corporate goals of the provider
Source of electricity, the renewable power mix, and the cloud
provider’s support for developing new renewable generation
sources rather than purchasing carbon offsets
Direct match of energy usage with 100% renewable energy purchases,
ideally in real-time (See Google case study on next page)
Commitment to the most energy efficient underlying infrastructure,
including optimized network & servers, smart construction, state-of-
the-art cooling, and responsible water management (See Amazon
Web Services case study on next page)
Customer-facing services like carbon calculators or granular cloud
lifecycle emissions reporting to help companies monitor their cloud
footprint (See Microsoft case study on next page)
Circular value chains of cloud provider’s hardware

Microsoft, carbon neutral since 2012, has committed to shifting its data centers
to 100% supply of renewable energy by 2025 through power purchase agreements
(PPAs). The company recently launched its ambition to be carbon negative by
2030 and by 2050 to remove all carbon emitted by the company since 1975.12
Microsoft Azure’s customers can access a carbon calculator that tracks
emissions associated with their own workload on the cloud.13
Microsoft Azure
Google currently utilizes a carbon-intelligent computing platform that shifts timing
of non-urgent data center workloads to when low-carbon sources of energy are most
plentiful. The company has also been matching 100% of its annual energy usage with
renewables since 2017.8
The company has a bold commitment to operate its data
centers carbon-free 24/7 by 2030, rather than rely on annual direct energy matches.
In 2020, Google became the first company to achieve a zero lifetime net carbon
footprint, meaning the company has eliminated its entire legacy operational
carbon emissions.9
Google Cloud Platform
AWS’s expansive infrastructure is 3.6 times more energy efficient compared
to median US enterprise data centers, largely due to efficient servers and
high capacity utilization rates.10
The company’s water-cooled facilities actively
measure water efficiency and select conservation options in the context of
regional climate patterns and local resources.11
Amazon Web Services (AWS)
CLOUD PROVIDER CASE STUDIES

Build with ambition
02
The journey toward a sustainable cloud involves three ambition levels: infrastructure as a service (IaaS also referred to as “lift-
and-shift”) migrations (bronze level) without major redesign, application of sustainable software engineering practices (silver
level), and application optimization for the “fabric of the cloud” (gold level). IaaS migrations can reduce carbon emissions by
more than 84% compared with conventional infrastructure. Reductions can be pushed even higher—by up to a whopping 98%—
by designing applications specifically for the cloud. The graphic below indicates the incremental levels of carbon reduction that can
be achieved—the greater the ambition, the greater the reduction in carbon emissions.
Reducing carbon emissions (estimated ranges based on Accenture research and analysis)
Cloud Footprint
10-20%
Power & Cooling Efficiency
Compute Utilization
Cloud-Native Application
Architecture
Carbon Free Energy &
HW Circular Economy
Cloud Footprint
Cloud-based
Sustainability Use Cases
15-20%
5-10%
35-45%
Low
CO
2
Intensity
High
Hardware Efficiency
10-15%
Sustainable Software
Engineering
5-10%
On-Premise
Enterprise
IT-Footprint

IaaS migrations involve migrating applications from enterprise-
owned to cloud without major redesigns of applications
or workflows. These basic cloud-first journeys pave the way for
significant carbon reduction opportunities. The main drivers of
IaaS include better power and cooling improvements that allow for
less energy per compute unit, newer and more efficient hardware
optimized by cloud providers, and server utilization rates several
times greater than typical enterprise-owned rates. In most cases,
cloud providers also have greater renewable energy mixes than
cloud users and minimize data center carbon footprints through
renewable energy.
Our analysis of the largest public cloud service providers shows
average enterprise-owned-to-cloud migrations can lead to an
impressive 65% energy reduction and 84% carbon reduction.
Shifting enterprise-owned computing to the cloud BRONZE

Sustainable software development approaches deliver even
more improvements. Companies must make intentional choices
to consider cost and performance in the context of sustainability
outcomes. For example, our experiments indicate that selecting
the right “fit-for-purpose” coding language can reduce energy
consumption. Maintaining balance between accuracy of
analytical models and cloud resource consumption can result
in significant savings.
Accenture Labs’ research in sustainable software engineering
revealed that for certain types of programming techniques, the
choice of coding language can impact energy consumption by
as much as 50 times. In dealing with AI, which is typically hosted
on the cloud, choices related to accuracy can also make a big
difference in energy use. Consider this: Accenture found that while
training a simple AI model for identifying flowers, increasing model
accuracy from 96% to 98% resulted in a nearly 7X jump in energy
consumption.
Applying sustainable software engineering practices SILVER
Amazon’s CodeGuru machine learning service helps the company
identify and act upon the lines of code that hinder application
performance. From 2017 to 2018, Amazon used it to increase
application efficiency, driving a325% increase in Central Processing Unit
(CPU) utilization and reducing the number of instances needed to manage
Prime Day, the company’s largest shopping event of the year.14
Amazon CodeGuru
EXAMPLE OF SUSTAINABLE SOFTWARE ENGINEERING
Sustainable software engineering practices drive energy and
carbon reductions. But with limited resources, companies need to
prioritize which applications will deliver the biggest carbon benefit
when it comes to sustainable development efforts. What’s also
important: executives should back sustainability as an outcome for
optimizing software, shifting away from their traditional focus on
performance and cost reduction.

Companies drive even greater carbon reductions through cloud-native
architectures and deployments. Our analysis shows that customizing
applications to be cloud-native can stretch carbon emission reduction to
98%. Customization requires designing applications to take full advantage
of on-demand computing, higher asset utilization rates, and dynamic
allocation of computing resources. For applications that are not fully
migrated, companies can use digital decoupling to take the core parts of
legacy applications and build efficient cloud architecture around them.
Optimizing software applications for the cloud
Taking advantage of Microsoft’s cloud-native Exchange Online platform rather
than Microsoft Exchange instances deployed in traditional data centers can result in
significant energy and carbon reductions. A Microsoft study of 10,000 users found
Exchange Online led to a 93% carbon emission reduction from energy savings and
the company’s renewable electricity purchases.15
Microsoft Exchange
GOLD
EXAMPLE OF SOFTWARE APPLICATIONS

Innovate further
03
Cloud is critical to unlocking greater financial, societal and
environmental benefits through cloud-based circular operations
and sustainable products and services. Leading companies are
pushing further when it comes to innovation; going beyond
data center carbon improvements.
Cloud providers have unique scale and financial incentives and
can work closely with stakeholders in adopting the circular
economy when it comes to hardware. Accenture estimates
show enterprise technology manufacturers can capture an
additional 16% of operating profit by designing products
for longevity, modularity, and circularity. Embedded emissions
from the manufacture and transfer of hardware to data centers
also represent significant value satisfying the needs of both
shareholders and stakeholders.
Cloud consumers use cloud-based platforms to trace upstream
and downstream value chains more rigorously and to recover
value from unused materials and industrial waste streams.
See examples on the next page.
Cloud-based circular operations

Banyan Nation is India’s first vertically integrated plastics recycling company using
mobile and cloud-based technology platforms. They collaborate with the informal
supply chain of plastic and proprietary plastic cleaning technology to create new
quality granules which can then be used for packaging of new products. The
company has recycled over 7 million pounds of plastic and integrated thousands
of formerly informal sector waste workers into Banyan Nation’s supply chain. They
won the Dell People’s Choice Award for Circular Economy Entrepreneur as part of the
Circulars Awards at the World Economic Forum in Davos.16
Banyan Nation
AMP Robotics is a pioneerinAIandroboticsfortherecyclingindustry. In 2019,
the company launched its new AMP Cortex dual-robot system (“DRS”) focused on
material recovery in municipal solid waste, electronic waste, and construction
and demolition. Guided by AI, robots sort, pick and place material. Data from each
material stream is captured in the cloud and made available through AMP Insights,
a visualization tool that makes informed decisions to optimize operations. The
company won The Ecolab Award for Circular Economy Digital Disruptor in 2019 and was
the Rising Star Company of the Year in the 2020 Global Cleantech 100.17
AMP Robotics
EXAMPLES OF CLOUD-BASED CIRCULAR OPERATIONS

By combining cloud with fourth industrial revolution (4IR) technologies, leading companies
promote better customer outcomes. This has been especially true for data-rich sectors.
Better sustainable products and services
Winnow’s cloud-based solutions use AI and analytics tools to help chefs cut food
waste in commercial kitchens. Using computer vision, the company’s system
harvests large volumes of food waste images which are used to train a predictive
model. Winnow saves kitchens 3-8% on food cost and drives an ROI of 2x to 10x in
less than a year. Its existing manual system is already used by thousands of chefs in
more than 40 countries. The company has helped divert the equivalent of $42 million
in food from landfills and saved 61,000 tons of CO2 emissions.18
Accenture is collaborating with Splunk and Global Emancipation Network to combat
human trafficking using the power of analytics. The Artemis solution uses AI,
machine learning, and cloud computing to help law enforcement partners pro-
actively and rapidly identify high risk business establishments and individuals. The
technology greatly improves the ad-hoc and tip-based approaches typically
used by law enforcement.19
Winnow Artemis – AI Against Human Exploitation

How Accenture
can help
Companies beginning their cloud journey confront a number
of questions: Which cloud provider is best? How should
applications be modernized to meet needs today and tomorrow?
And which cloud-driven innovations should be priorities? The
decisions they make will directly determine how sustainable their
solutions are and the benefits they drive. Those who choose wisely
will gain unprecedented levels of innovation leading to both
a greener planet and a greener balance sheet.
At Accenture, we are committed to helping all companies become
cloud-first and accelerate their digital transformation. Our
newly created multi-service group, Accenture Cloud-First, brings
together the full power and breadth of Accenture’s industry
and technology capabilities, ecosystem partnerships, and deep
commitment to responsible business. We will deliver the business
value, innovation acceleration and technical know-how you need.
Our experience will be your advantage, now more than ever.

References
1
Synergy Research Group, “Hyperscale Data Center Count Passed the 500 Milestone in Q3”,
October 17, 2019
2
Gartner, “Gartner forecasts worldwide public cloud revenue to grow 17% in 2020”,
November 13, 2019
3
Seeking Alpha, “China’s burgeoning cloud computing market is a tremendous opportunity”,
May 12, 2020
4
Eric Masanet, Arman Shehabi, Nuoa Lei, Sarah Smith, Jonathan Koomey, “Recalibrating
global data center energy-use estimates”, Science Vol: 367, Issue 6481, February 28, 2020
5
IEA, Data and Statistics, “CO2
emissions from electricity generation factors, Spain 2000-
2017”, accessed July 2020
6
Accenture, “Accenture’s journey to the cloud”, accessed July 2020
7
Accenture Strategy, “U.N. Global Compact – Accenture Strategy CEO Study on Sustainabili-
ty”, September 24, 2019.
8
Google blog, “Our data centers now work harder when the sun shines and wind blows”, April
22, 2020
9
Google, “Our third decade of climate action: Realizing a carbon-free future”, September 14,
2020.
10
Amazon blog, “Reducing carbon by moving to AWS”, November 26, 2019
11
Amazon, “Sustainability: Thinking Big”, September 2019
12
Microsoft blog, “Microsoft will be carbon negative by 2030”, January 16, 2020
13
Microsoft blog, “Microsoft sustainability calculator helps enterprises analyse the carbon emis-
sions of their IT infrastructure”, January 16, 2020
14
Amazon, “AWS Announces General Availability of Amazon CodeGuru”, June 29, 2020
15
Microsoft, “The Carbon Benefits of Cloud Computing”, 2018
16
UN Global Compact, “Role of technology in transforming India’s sustainability agenda”, 2019
17
AMP Robotics, “AMP Robotics Launches New AI Guided Dual-Robot System for the Recycling
Industry”, May 9, 2019
18
Winnow Solutions, “Technology to run a more profitable, sustainable kitchen”, accessed
July 2020
19
Splunk, Accenture, “Combating Human Trafficking Using Analytics”, accessed July 2020

About Accenture
Accenture is a leading global professional services company, providing
a broad range of services in strategy and consulting, interactive, technology
and operations, with digital capabilities across all of these services. We
combine unmatched experience and specialized capabilities across more
than 40 industries — powered by the world’s largest network of Advanced
Technology and Intelligent Operations centers. With 513,000 people serving
clients in more than 120 countries, Accenture brings continuous innovation to
help clients improve their performance and create lasting value across their
enterprises. Visit us at www.accenture.com.
Contributors
Copyright © 2020 Accenture. All rights reserved.
Accenture and its logo are trademarks of Accenture.
DISCLAIMER: This document is intended for general informational purposes only and does not take
into account the reader’s specific circumstances, and may not reflect the most current developments.
Accenture disclaims, to the fullest extent permitted by applicable law, any and all liability for the
accuracy and completeness of the information in this presentation and for any acts or omissions made
based on such information. Accenture does not provide legal, regulatory, audit, or tax advice. Readers
are responsible for obtaining such advice from their own legal counsel or other licensed professionals.
This document makes descriptive reference to trademarks that may be owned by others. The use of
such trademarks herein is not an assertion of ownership of such trademarks by Accenture and is not
intended to represent or imply the existence of an association between Accenture and the lawful
owners of such trademarks.
KUSHAL AMIN
SUNDEEP SINGH
Senior Consultant
Sustainability
Accenture Strategy
Principal Director
Sustainability
Accenture Strategy
SANJAY PODDER
Managing Director
Accenture Labs
Technology
SWATI SHARMA
Senior Manager
Application Development
Technology

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