Are Green Mark Platinum Buildings Fully Optimised — With No More Opportunities?

Why High-Performance Buildings Still Have Room for Improvement

C.V. Kumar · Founder & Chief Executive Officer, E²Optima

Achieving Platinum is an important milestone. But true excellence comes from continuously improving beyond that benchmark.

The Misconception

In practice: Even Platinum-rated buildings have opportunities to optimise further.

Why There Is Always Room for Improvement

Technology is continuously evolving— fixed setpoints → dynamic setpoints; manual optimisation → AI-driven optimisation; static control → adaptive control strategies. What was optimal yesterday may not be optimal today.
Operating conditions change over time— cooling loads, occupancy patterns, operating hours, system modifications and upgrades. Systems drift away from original optimal conditions.
Multiple paths to the same outcome — there are many ways to achieve a target performance; the key is finding the most efficient path, operating at the right speed and conditions, and continuously refining system behaviour.
Small changes, meaningful impact — even minor improvements in control, sequencing and maintenance deliver significant lifetime savings.

The Hidden Opportunity in High-Performance Buildings

Most high-rated buildings already have the right infrastructure: chillers, pumps, cooling towers, AHUs, VSDs, sensors, power meters and capable controls. The additional investment required is minimal — the foundation is already paid for. Opportunities remain to refine control logic, optimise setpoints, improve sequencing, apply new algorithms and leverage advanced analytics.

Realistic Expectations, Meaningful Results

Savings may not be the 30–40% achievable in older, inefficient systems. But even a 5–10% improvement delivers strong ROI, reduces operating cost, enhances sustainability performance and keeps the asset ahead of tightening regulation.

5–10%

Additional savings achievable

Minimal

Additional investment

Strong

ROI on controls & logic

Ahead

Of regulations

Proven in practice: multiple case studies demonstrate Platinum-rated buildings achieving 5–10% additional savings through control optimisation, logic refinement and advanced analytics.

The Real Mindset Shift

Optimisation is not a one-time activity — it is a continuous journey: monitor performance → identify new opportunities → refine controls → apply new technologies → sustain improvement. There is no end to optimisation. The goal is not just to reach high performance, but to continuously improve it.

Attribution: Project references and performance metrics cited in this article reflect work delivered by C.V. Kumar in prior leadership roles at Barghest Building Performance Pte Ltd and Comfort Management Pte Ltd; they are not E²Optima company achievements. Figures are drawn from publicly cited sources including BCA Green Mark Awards and EENP Awards publications. No proprietary, confidential or commercially sensitive information of any prior employer is contained in or implied by this article, and nothing herein constitutes a solicitation of business from any named party. © 2026 E2Optima Pte Ltd.

Key Takeaway

Even high-performance buildings are not 'finished'.

Continuous optimisation is essential to maintain and enhance efficiency. Keep improving. Stay ahead. Deliver more value.

Need expert guidance?

Let us help you uncover hidden opportunities in your systems and achieve measurable energy savings — no obligation, confidential discussion. info@e2optima.sg · +65 8282 3616 · www.e2optima.sg