Portfolio Averaging

LinkedIn Post 04: Portfolio Averaging

Your quarterly report shows 12% portfolio-wide carbon reduction. Compliant. On track. Green status.

But when you drill down to building level:

• Building A: 2% (at risk)

• Building B: 3% (at risk)

• Building C: 1% (non-compliant)

• Building D: 18% (compliant)

• Building E: 5% (at risk)

The portfolio looks fine. Individual buildings are failing.

This is the danger of portfolio aggregation. It's statistically valid but governance-wise, it's a failure. Your statutory carbon budget obligations typically operate at building level or defined groups, not at portfolio average.

An AI system can deliver a "compliant" portfolio while failing systematically at the building level. And if that portfolio average is hiding non-compliance, you've just spent capital to create a false sense of progress.

The solution: disaggregate your reporting. Track compliance at building level. Make non-compliant buildings visible. Don't let averaging hide governance failures.

Your portfolio average is useful. But it's not sufficient. You need building-level accountability.

#Governance #Transparency #Decarbonisation #CarbonBudgets #SustainabilityReporting