Section 1
Three Dimensions of Value
A credible business case is built on three pillars: financial value, risk management, and non-financial value. All three matter. All three need to be present.
Tap each dimension to explore
Which dimension will win in your room?
Different audiences are motivated by different dimensions. Finance cares about cost reduction and capital efficiency. Risk and compliance teams care about regulatory exposure. HR and talent teams care about recruitment and engagement. The strongest business cases address all three, but lead with the dimension that your audience will listen to.
Section 2
Business Case Calculator
Use this tool to model the financial case for a sustainable IT programme. Adjust the sliders to reflect your organisation's scope and expected returns.
Section 3
Sustainability Risk Heat Map
Click each cell to see specific sustainability risks for IT estates. The heat map shows likelihood vs impact across key risk categories.
Which risks matter most to your business?
Risk profile varies by organisation. A capital-intensive player with strong ESG requirements cares deeply about stranded assets and green financing. A B2B technology vendor cares acutely about customer procurement pressure. Start with the risks that your board cares about, and build the business case around those.
Section 4
Five case types.
The business case is not one argument. It is five, and different audiences respond to different ones. The strongest business cases make all five visible, then lead with whichever case matters most to the decision-maker in the room.
Cost
Waste removal, rightsizing, consolidation, lifecycle extension. The most immediate and measurable case. Usually funds the programme in year one.
Risk
Regulatory exposure, reporting readiness, supply chain resilience, reputational risk. Increasingly material as CSRD and mandatory disclosure frameworks take effect.
Capacity
Deferred infrastructure investment, extended asset life, reduced power and cooling demand. Freeing capacity through efficiency delays or avoids capital expenditure.
Strategy
Competitive positioning, customer requirements, investor expectations, market access. Sustainability as a condition of doing business, not a separate initiative.
Credibility
Evidence quality, methodology transparency, confidence levels. The ability to stand behind claims under external scrutiny. Without credibility, the other four cases are vulnerable.
The practical discipline
Most organisations lead with cost because it is the easiest to quantify. That is a reasonable starting point. But a business case built only on cost savings will stall when the easy wins are captured. The risk and strategy cases are what sustain investment beyond the first year. The credibility case is what prevents the programme from being undermined by a single external challenge.
Section 5
What the first business case funds.
The first business case does not need to fund the entire programme. It needs to fund the five things that make everything else possible. Get these right, and the second business case writes itself.
Baseline improvement
Move from spend-based proxies to activity-based measurement for your largest categories. Without a credible baseline, you cannot demonstrate progress.
Measurement quality
Improve confidence levels for your top sources of emissions. Document methodology. State what is measured, what is modelled, and what is proxy. Decision-makers need to trust the numbers.
Hotspot analysis
Identify the five to ten sources of greatest waste or inefficiency. This is where quick wins live. The cost savings from hotspot remediation typically exceed the cost of the programme.
Role-based governance
Assign named owners to the top services, the vendor evidence register, and the waste removal backlog. Governance is what converts a report into accountability.
Small visible interventions
Pick two or three operational improvements that are visible, measurable, and achievable within 90 days. These build credibility and demonstrate that the programme delivers results, not just reports.
The trap to avoid
Do not build the first business case around a three-year transformation. Build it around 90-day proof points that fund the next phase. The executive who approves a large, multi-year sustainability programme without evidence of early delivery is rare. The executive who approves a second phase after seeing measurable results from the first is common.
Knowledge Check · Module 10 · Q1
Which of the following best represents the three pillars of a credible sustainable IT business case?
Select an answer to reveal the explanation.
✓ Correct: Option B
A credible business case is built on three complementary dimensions. Financial value addresses the immediate and long-term cost case. Risk management addresses regulatory, reputational, supply chain, and climate risks. Non-financial value addresses talent, engagement, investor expectations, and operational productivity. All three need to be present, but different audiences are motivated by different dimensions.
Knowledge Check · Module 10 · Q2
Which of the following is NOT typically a component of the financial value case for sustainable IT?
Select an answer to reveal the explanation.
✓ Correct: Option C
Reduced employee attrition is a non-financial value driver. It is real, it matters, and it should be in the business case. But it is not typically modelled as direct financial value in the same way that cost reduction, green financing access, and revenue/market access are. Employee engagement and talent retention belong in the non-financial value pillar.
Knowledge Check · Module 10 · Q3
An organisation discovers that 12% of its cloud infrastructure is idle and could be shut down for £1.8m annual savings. What dimension of the business case does this most directly address?
Select an answer to reveal the explanation.
✓ Correct: Option A
While idle resource cleanup has secondary benefits (reduced complexity, better engineer focus), it primarily demonstrates financial value through immediate, measurable cost reduction. This is the strongest argument for starting with waste in the business case: it is easy to measure, it is easy to defend, and it funds the longer-term programme through immediate recovery.
⏸ Pause & Reflect
Take 10–15 minutes. Write your answers down. Specificity matters.
Open discussion: In your experience, what question or objection stops a sustainable IT business case from being approved?
Module 10: Key Takeaways
Financial value, risk management, and non-financial value are all necessary. Audiences vary: lead with the dimension your board will listen to, but include all three.
Cost reduction from waste elimination is the fastest credibility-builder. Most programmes recover their full cost in 9–12 months.
Regulatory, reputational, supply chain, and climate risks are real. Organisations that have not addressed them are exposed. Frame sustainability as risk management, not just environmental virtue.
Sustainability performance affects recruitment, retention, and employee engagement. In a competitive talent market, this is material.
Build the business case with data: waste audits, risk assessments, competitive analysis. The strongest case is the one you can defend in a room.