Simulation Supports Sustainability
Ansys is committed to the conservation and sustainability of the planet’s resources by operating
our business in ways that reduce our environmental impact and carbon footprint. As part of Ansys’
environmental sustainability efforts, we submit to the Carbon Disclosure Project (CDP) annually andare committed to taking steps to measure and mitigate the carbon footprint of our operations.
As the global leader in simulation software, Ansys is well positioned to also provide technology
solutions that support and enable the sustainability goals of our customers across diverse industries.
Our solutions can have a positive impact on the environment by helping our customers to reduce
their use of resources while increasing their efficiency and productivity. Discovering and implementing efficient and innovative product design and operation — with minimal use of physical resources —is at the very heart of our vision of pervasive simulation.
While measuring and reducing our own environmental impact is essential, the benefits from thisprocess are finite. By contrast, our product handprint — the use of simulation by customers to reduce
their own carbon footprint and the footprint of their products — is nearly infinite. Here, we present
research findings and a series of use cases that illustrate how Ansys simulation creates thesehandprint benefits.

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Helping to Increase Energy Efficiency and Innovation
It’s easy to see the broad environmental impact of Ansys software as it actively supports the development of more sustainable energy generation technologies, fuel sources, storage systems, and otherproduct innovations.
But, like every Ansys customer, energy companies also benefit from the increased development
speed and efficiency gained by using simulation software. By replacing manual, paper-based analysis
and material-intensive physical prototypes with engineering simulation, companies can reduce waste,save on utilities costs and cut the overall development cycle.

Simulation and Sustainability: Ansys Survey Results
Recently Ansys partnered with Digital Engineering 24/7 to commission a survey of engineering professionals, including representatives of the energy industry. The survey asked respondents to describe
the sustainability benefits their companies gain from simulation-driven product development. The
following are some of the key findings.
When asked to rate the importance of sustainability
to their organizations on a scale of one to 10, with one
being the least important, 64% of respondents said
sustainability is very important with a score of eightor above, and almost a quarter of respondents (24%)
ranked it as a 10.

“Simulation software can help us

to communicate our sustainability
efforts to our stakeholders by providing them with data and insights
into our environmental impact.

”— SURVEY RESPONDENT

Follow-up questions revealed that, in their quest for sustainability, companies are prioritizing reduced
water usage, carbon capture, emissions reductions, increased energy efficiency, and materials
circularity. Among these, energy efficiency emerged as a special area of focus.
Two-thirds of respondents (66%) rated energy efficiency as very important (eight or above), basedon a scale of one to 10 with one being the least important. It was by far the most important of all thesustainability measures covered by the survey questions. In comparison, water usage was rated asvery important by 43% of respondents, carbon capture by 42%, emissions reductions by 55%, andmaterials circularity by 50%.
The Importance of Sustainability
706050403020100Not Important Somewhat Important
(1-3)
(4-5)

Important(6-7)

Very Important(8-10)

Figure 1. Survey respondents ranked the importance ofsustainability to their organizations on a scale of one 1 to 10,with 1 being the least important.

When survey participants were asked about
their companies’ other specific priorities,
many write-in responses could be directly
addressed by an increased use of simulation— including engineering labor efficiency,
reduction of paper usage, reduction in testing, and time efficiency. Simulation-driven
product development can also address manyother sustainability concerns of respondents,including product durability and longevity
improvements, lowering maintenance, minimizing materials usage, and exploring moresustainable materials.

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The Importance of Energy Efficiency
70706060505040403030202010100

Not Important Somewhat Important
(1-3)
(4-5)
All Respondents

Important(6-7)

0Very Important(8-10)

Water
Usage

CarbonCapture/Removal

Emission
Reduction

EnergyEfficiency

Materials
Circularity

Energy Respondents

Figure 3. When asked to rank sustainability attributes
important to their company on a scale of 1-10, with one being
the lowest, 66% of respondents ranked energy efficiency
as very important (8 or above).

Figure 2. All respondents and energy-industry respondents
ranked energy efficiency as being very important for theircompany.

“We use simulation software to identify ways to reduce energy consumption during
product development and manufacturing. For example, we can use simulation
software to test different design options to see which one is the most energy
efficient. We can also use simulation software to optimize our manufacturing
processes to reduce energy consumption.

”— SURVEY RESPONDENT

Sixty-nine percent of respondents are already using engineering simulation software as part of theirproduct development process.
Does Your Company Use Engineeering
Simulation Software?

No31%
Yes
69%

Figure 4. Most companies surveyed are leveraging
engineering simulation software.

When asked about specific benefits of engineering simulation, 58% of simulation users reported that it reducesmaterials waste during prototyping and manufacturing.
Just over half (52%) of all respondents pointed to the factthat simulation saves energy during product developmentand production. The ability to select alternative sustainable
materials was important to 44% of simulation users, while
42% stated that simulation helps them design more sustainable products. Respondents also noted that simulation
helps reduce pollution (29%) and water consumption (26%)
during product development and manufacturing.
Write-in benefits of simulation included compliance withenvironmental regulations, reduced labor requirements,
fewer physical tests, improved materials traceability, fasterdevelopment cycles, increased product reliability, andoptimized efficiency.

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“Our goal is to provide our customers with the safest, (most) reliable, affordable,and sustainable energy services available. Engineering simulation software helps
provide a means to that end.

”— SURVEY RESPONDENT

Does Engineering Simulation Help Your Company Further its Sustainability Goals?
Yes it enables us to reduce material waste during
prototyping and manufacturing

58%

Yes it enables us to save energy during productdevelopment and/or manufacturing

52%

Yes it enables us to select more or alternative
sustainable materials during product designand development

44%

Yes it enables us to create products that are moresustainable while in use by consumers

42%

Yes it enables us to improve air quality/reduce pollution
during manufacturing or during operation29%

Yes it enables us to save water during productdevelopment and/or manufacturing
Yes, in other ways–Write inNo

26%
6%

Top Responses
1. Simulation enables us to 		reduce material waste during 		
prototyping and manufacturing.
2. Simulation enables us to save 		
energy during product devel-		opment and/or manufacturing
3. Simulation enables us toselect more or alternate sus-		
tainable materials during pro-		
duct design and development.

12%

Figure 5. Of companies using simulation software, the overwhelming majority of respondents (88%, obtained by subtracting the12% who answered “no” from 100%) said simulation was helping to further their company’s sustainability goals.

“Simulation software helps us determine the most effective use of our products,

reduce waste, and create reworkable products where applicable. We can reduce
raw materials needed, which significantly reduces carbon through manufacturingof new products and then the disposal and recycling of used products.

”— SURVEY RESPONDENT
Methodology
Ansys commissioned Digital Engineering 24/7 to conduct an e-mail survey of engineering professionals to better
understand how they use simulation in conjunction with sustainability efforts. The survey was conducted in July andAugust 2023. A total of 210 responses were received, with a margin of error at the 90% confidence level (+/- 5.7%).

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Sustainability Success Stories with Simulation
Energy companies worldwide are focused on identifying new fuel sources, advancing energy generation
processes, and designing more effective storage technologies. Ansys software plays a critical role inmodeling, verifying, and launching these energy innovations rapidly, saving time and costs. The following
are just a few examples of the energy innovations developed with the support of Ansys software.

“Ansys uniquely makes it possible and user-friendly at the same time to master themultiphysics tasks, which inevitably come together when developing complex systems
such as wind turbines.

”— DR. PAUL KÖSTER, Lead R&D Engineer, siWING, Wismar, Germany		Source: SiWING Simulates new Small Wind Turbine Design (ansys.com)

siWING: Expanding the use of wind energy
An innovative startup company called siWING — shorthandfor “smart, intelligent wings”— is leveraging a suite of Ansys
software to revolutionize wind power with its line of ROTOLUS
private wind turbines. Ranging in size from 6 to 24 meters tall,
ROTOLUS turbines are capable of producing more than
25,000 kWh of energy per year — which could provide power
or about five homes. Even its smallest designs can generateover 2,500 kWh, half of the average home’s annual energy needs.
CorPower Ocean: Harnessing the Power of Ocean Waves
Wave energy represents one of the world’s largest untappedsources of clean energy. To harness that energy, CorPower Ocean
is using Ansys software to design and verify its innovative wave
energy converters, designed as 19-meter buoys that are tethered
to the sea floor. A cluster of buoys can produce 10 MW to 20 MW ofelectrical energy. Multiple clusters can be linked — all sharing acommon electrical transmission infrastructure — to deliver gigawattsof electricity.

“We needed to design structures that are

optimized for energy production, cost, andsurvival of extreme storms. For these tasks,
Ansys Mechanical and Ansys Fluent provided
powerful simulation support. The engineering
teams used Mechanical and Fluent to model,
test, and refine the physical size and shape ofthe buoys.

”— JAVIER VERDEGUER, Lead Composite Engineer,
CorPower Ocean, Stockholm, Sweden
Source: Tapping Into the World’s Biggest Battery (ansys.com)

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RayGen: Storing Solar Energy for the Long Term
Utility-scale energy storage is a big challenge for the solar energy industry. RayGen uses Ansys software
to model key elements of what it says is the world’s largest long-duration energy storage project.
Raygen’s solar energy-fueled power plant includes 1,200 concentrating mirrors called heliostats that track
the sun. Energy is generated via photovoltaic modules, then stored as byproduct heat in a water pit. It’s
later converted to dispatchable electricity. The project is designed to deliver 4 MWh of solar generationand 50 MWh of storage.

“Using Ansys simulation has saved us months of design time … Plus, instead ofrequiring significant capital expenditure on multiple prototypes and testing phases,
we can be confident that we are progressing on the right track, both optically andmechanically, before we commit to constructing anything.

”— THOMAS EVANS, Mechanical Engineer, RayGen, Hawthorn East, Victoria, Australia
Source: Simulation Helps Harness the Power of the Sun (ansys.com)

C-Zero: Turning Natural Gas into a More Sustainable Fuel
Natural gas is a plentiful, low-cost energy source that provides about a quarter of the world’s energy.
C-Zero is using Ansys software to develop a process for decarbonizing natural gas and transforming it
into pure hydrogen, a more sustainable fuel. In C-Zero’s process, methane gas is fed into a reactor filledwith a molten media, where it’s heated to temperatures exceeding 1,000 °C. Hydrogen emerges as gas
bubbles, while carbon is extracted in solid form. A pilot facility has proven capable of producing 400 kgof hydrogen daily.

“It’s impossible to see inside the reactor vessel and observe processes like heating,mixing, separation, and deposition firsthand. So, we need to simulate that complex
process in a virtual environment. Ansys has played a critical role in helping us see andunderstand the flow, thermal, and mechanical characteristics of the methane pyrolysis
reactor, which is at the heart of our company’s value proposition.

”— SAM SHANER, Technical Director of R&D, C-Zero, Santa Barbara, California			Source: The Future of Hydrogen Looks Turquoise

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“Wärtsilä uses Ansys software for complex battery

storage system modeling to accurately test the life
expectancy of our energy storage systems. With thehelp of Ansys simulation software, we were able tolayer and build an accurate representation of oursystem that we can use to understand thermal
management performance. Simulation also saved
the team six months of development time andreduced the number of physical prototypes by three.

”— DEWEI GUAN, Product Development Engineer,Wärtsilä, Helsinki, Finland
Source: Going with the Flow: Ansys Helps Wärtsilä Energy Powershift Toward a Sustainable Future

Wärtsilä: Optimizing Battery-based Energy Storage Systems
Wärtsilä develops fully integrated energy storage systems that span solar, wind farm, and power plant
applications. Each storage unit consists of battery cells, cooling and fire suppression systems, inverters or power conditioners, and control software. Excess energy is stored using lithium-ion batteries.
Wärtsilä uses Ansys software to simulate the thermoelectric and electrochemical behavior of thesebatteries, along with transient heat transfer. The result? Battery designs that are optimized for stability,reliability, operation costs, susceptibility to degradation, and other performance aspects.

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Learn More About Sustainability and Simulation
When used as part of the design and development phase, simulation can help Ansys customers build
effective and efficient products that are integral to meeting the environmental sustainability needs ofthe future.
Ansys customers from virtually every industry are using simulation to meet their sustainability goals.
Companies in the energy sector are reducing greenhouse gas emissions, improving low-carbon energy
alternatives, and optimizing operations with digital twins that are enabled by simulation and artificial
intelligence. Automakers are transforming into electric mobility companies, while also continuing towork on improving aerodynamics and reducing vehicle weight. The aerospace industry is exploring new
propulsion and fuel storage solutions while implementing advanced manufacturing and model-based
systems engineering (MBSE). The high-tech sector is using simulation to design more energy-efficientelectronics that are designed with material intelligence to improve e-waste recovery. And heavy industry
is transitioning to digital workflows that rely on the Industrial Internet of Things (IIoT) to optimize
operations, save energy, and control pollution.
Please see additional information on Ansys’ exciting technological innovations and corporate
responsibility initiatives below.

Additional Resources:• Sustainability at Ansys
Our simulation software empowers designers and engineers to assessand scale their sustainable innovations faster, reduce their environmental
impact, and foster a better future.
• Discover the Ansys Earth Rescue Online Video Series
Earth Rescue reveals what visionary companies are doing today toengineer radical new ideas in the fight against climate change.
• Read our Corporate Responsibility Report
Highlighting our progress across our environmental, social, and governance (ESG) initiatives, the Ansys corporate responsibility report sets out
our commitment to delivering positive change and long-term value for ourstakeholders – our investors, customers, employees, and partners.
Questions?
Please contact our corporate responsibility coordinator at:
corporateresponsibility@ansys.com.
Investor Contact
Kelsey DeBriyn Vice President, Investor Relations 724.820.3927
kelsey.debriyn@ansys.com
Visit www.ansys.com for more information.

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