OSR016

Redundancy vs Capital Cost

Business ContextRedundant equipment and systems can improve availability and reduce single-point failures, but adding complete standby capacity increases capital, space, maintenance, and lifecycle cost.

Brown Field Industrial Projects TRIZ ResolutionProvide redundancy at the function or failure point that actually determines availability rather than duplicating entire systems. Shared standby resources, modular capacity, rapid replacement, and selective redundancy can provide resilience with less capital.

Applicable TRIZ Principles

Principle 1 – Segmentation: applies redundancy selectively to critical functions.

Principle 6 – Universality: uses shared standby resources across compatible demands.

Principle 11 – Beforehand Cushioning: protects critical functions against identified failure consequences.

Expected Outcome

Higher system availability

Lower redundancy cost

Reduced unnecessary equipment duplication

Better capital efficiency

Decision IndicatorsEarly indicators that this contradiction is limiting brownfield project performance include:

Entire systems are duplicated to protect a small number of critical functions.

Standby equipment has very low utilization.

Redundancy proposals create major space or infrastructure requirements.

Single-point failures remain despite significant redundant capacity.

Reliability investment is based on equipment count rather than system function.

Monitoring these indicators helps organizations obtain required resilience without automatically duplicating complete systems.