SUSTAINABLE, LOW ENERGY & LOW CARBON UX DESIGN CASE STUDY
Designing a lower energy website to reduce your carbon footprint
A Sustainable UX case study focusing on low-carbon UX to explore how early design signals can reduce digital energy use, carbon impact, and unintended harm before products are built.
What this project explores
This project explores the sustainability of the Futures Scouting↗ website, a content-led site created to support a book about designing sustainable futures. While the site does not receive high traffic, its purpose is values-led rather than growth-driven. Reducing its planetary impact is treated as an extension of the book’s mission—ensuring that a site advocating for sustainable futures also operates in a way that is consistent with those principles.
This project examines how designers can identify sustainability risks and opportunities upstream, before they become embedded in products, teams, and technical decisions.
The scope of the exploration includes:
Digital Product Direction
How early design assumptions influence long-term environmental and social impact.
UX Decision-making
How everyday design choices quietly shape energy use, data transfer, and behaviour at scale.
Emerging Design Signals
How trends, patterns, and weak signals can indicate future sustainability challenges.
Designer Responsibility
How UX practitioners can act earlier, with more confidence, rather than retrofitting fixes later.
The sustainable UX lens used in this project
“How might everyday UX decisions reduce digital energy demand without compromising usability, performance, or commercial outcomes?”
This project applies a Sustainable UX lens grounded in life-centred design.
Rather than focusing only on just usability or business outcomes, the work considers how digital experiences affect energy consumption, infrastructure load, and planetary limits over time. Sustainability is treated as a design responsibility, not a technical afterthought or compliance task.
The lens reframes UX as a lever for prevention, not just optimisation.
Low-energy UX to lighten operational footprint
Exploring how everyday UX choices influence energy demand across devices, networks, and infrastructure, and how small design decisions can quietly reduce energy use at scale.
Eliminating low-value digital overhead
Assessing where complexity, weight, or excess adds cost without proportional user or business benefit, and where restraint improves efficiency.
Aligning performance with sustainability outcomes
Positioning speed and efficiency as contributors to long-term cost control, resilience, and environmental responsibility, not just usability metrics.
The problems and opportunities
- Digital products are often designed with a short-term focus, leading to avoidable impact:
- Sustainability and energy risks are identified too late, once systems are already locked in
- Designers lack practical ways to connect early ideas to long-term impact
- Energy and carbon costs remain invisible during concept and strategy phases
- Teams default to trends without questioning their downstream consequences
- Responsibility for impact is pushed onto engineering or operations
As a result, well-designed products can still create significant environmental harm.
Measurement of hidden digital costs
By reframing early design signals through an energy and sustainability lens, the work highlights how seemingly small decisions can scale into significant energy, data, and carbon costs over time.
Experience-level UX optimisation
Iteration 1: Styling improvements and reduced plugins
UX decisions take into account their influence on usage patterns, system load, and infrastructure demand, extending optimisation beyond interface quality alone.
System-level UX optimisation
Iteration 2 & 3: UX component improvements & system optimisation
Further UX improvements focusing on components and system-supported operations, such as caching.
Measurable reduction in operational digital footprint
Improvements across the experience and supporting system combined to reduce overall energy use, carbon output, and page load time, demonstrating how Sustainable UX can deliver tangible environmental and performance value alongside usability and business outcomes.
The Life-centred Shift
Across all four areas, the 14 core innovations combine a collective change in design intent:
From:
Digital platforms optimised for attention, growth, and short-term engagement
To:
Digital systems designed with awareness of their material, behavioural, and ecological consequences over time
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