With large organisations embedding climate ambitions into procurement decisions, SMEs that can demonstrate progress on reducing their carbon footprint are better placed to secure and retain supplier relationships.

The most effective way for businesses and technology teams to reduce emissions is through practical, measurable action rather than sustainability in name only.

Instead of high-level sustainability claims, organisations are increasingly focusing on tangible action across a handful of technology domains – hosting, coding, cloud architecture and AI use.

These areas offer immediate, measurable benefits: lower energy use, reduced waste, better performance and more future‑proof systems.

Here’s a practical guide to making technology decarbonisation part of everyday decision‑making and contributing to climate ambitions across your value chain.

Physical servers remain one of the most carbon intensive elements of technology estates. 

Virtualised environments – whether platform, container or infrastructure as a service – typically require far less energy to deliver the same compute outcomes. 

Practical actions to consider today:

• Review whether physical servers can be replaced with virtualised or shared environments
• Assess data centre locations and prioritise regions with lower carbon intensity electricity
• Right size compute and storage to avoid paying for – and powering – unused capacity

The ambition is not constant replacement, but smarter lifecycle decisions that balance efficiency with embodied emissions.

“Green” coding is often overlooked, yet software efficiency directly affects energy consumption across servers, networks and end‑user devices.

Poorly designed code drives unnecessary processing, data transfers and hardware strain. 

5 actions to consider today:

• Maximise reuse of existing code and established design patterns
• Design applications to consume only the compute and storage they genuinely need
• Minimise unnecessary system calls and data movement between services
• Reduce data and media sent to end user devices through compression and optimisation
• Maintain clean, readable code that can be reused rather than rewritten

Efficient code not only reduces emissions – it also improves performance, reliability and long term maintainability.

Public cloud services could significantly reduce emissions compared to traditional hosting – but only when used well. Poorly configured cloud environments can waste just as much energy as legacy infrastructure. 

Things you could do today:

• Use serverless or cloud native services where architecture allows
• Select hosting regions with lower carbon intensity where possible
• Enable auto scaling so resources match real time demand
• Schedule shutdowns for non production or unused services
• Use cloud optimisation tools to monitor utilisation continuously

Cloud sustainability is not a one off migration decision – it is an ongoing operational practice.

Generative AI tools are powerful - but energy intensive. Everyday usage decisions, from prompt length to task selection, can significantly affect emissions. 

Considerations to take away today:

• Are you experimenting with AI purposefully?
• Are you learning to use AI for the things it's best at?
• Are you keeping your prompts concise and clear?
• Reuse and refine prompts or templates instead of starting from scratch.

Responsible AI use improves productivity while avoiding avoidable environmental cost.

The most successful technology decarbonisation strategies do not rely on specialist teams alone. They embed simple checks into everyday choices – by developers, architects, procurement teams and business users alike. 

This means asking better questions – things like:

• Is this the most efficient way to deliver the outcome?
• Are we using only what we need?
• Can we reuse, optimise or simplify before expanding?

These small decisions compound quickly – cutting emissions, reducing costs and creating more resilient digital services.

Technology decarbonisation is about doing better, not less. By making smarter choices across hosting, coding, cloud and AI, businesses could cut emissions while improving efficiency and performance.

For businesses managing growth, regulation and digital change, smarter digital decisions could lower carbon, cut costs and build resilience.

Visit our Future Fit Hub for more practical insights on building a future-ready business.
 

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