Allocating Capital Under a Board-Level Carbon Mandate
A 12-building, 210,000 m² portfolio carries a board commitment to cut Scope 1 and 2 emissions 30% below the 2022 baseline by 2030. The facility team controls USD 4.2 million of capital over three years. The inventory shows: Building A (leased headquarters, 38% of emissions, chiller at end of life, lease expires 2029); Building B (owned, 22% of emissions, controls schedules never re-commissioned since 2016); Building C (leased, 15% of emissions, HVAC and lighting landlord-controlled under a net lease); and ten smaller sites making up the rest. The sustainability director wants visible, certified projects. The CFO wants the largest reduction per dollar and no stranded assets. Two of the smaller sites are scheduled for divestment in 2027.
1. Allocate the USD 4.2 million across the portfolio, justify the sequencing, and state what you would deliberately not fund.
Read the worked answer
Framework: abatement cost plotted against remaining holding period. Capital must be recovered before the company stops paying the bill.
- Building B first - no-regret tier (~USD 250k). Re-commissioning plus schedule and setpoint repair on uncontrolled equipment typically yields 5–15% of that building's energy. It is owned, has a long horizon, and the savings are permanent and low-risk. Fund it fully in year one.
- Smaller sites - screening only (~USD 300k). Divestment in 2027 means measures must pay back inside roughly two years. Fund controls tweaks, lamp/LED replacement and behavior programs; exclude boiler or chiller replacement.
- Building A - conditional, staged (hold ~USD 2.0M). Deep plant replacement in a leased asset with a 2029 expiry risks a stranded asset if the company does not renew. Fund interim, movable measures now (retro-commissioning, tenant plug-load and after-hours reset, procurement of renewable electricity) and gate the chiller decision on a renewal decision made at least 18 months before expiry.
- Building C - negotiation, not capital. Split incentive means tenant capital improves a landlord asset. Budget for metering and lease negotiation, not equipment.
Not funded: certification plaques as a primary measure, and any fuel-switching or plant project in Building A before the lease decision. Test applied: every project must clear a threshold abatement cost (e.g. USD/tCO2e) and pay back within its remaining holding period. Report both to the CFO so the constraint is visible rather than asserted.
2. Building C's systems are landlord-controlled and the lease runs to 2031. What is your strategy for that asset?
Read the worked answer
The problem is structural, not technical: the party who pays for the upgrade is not the party who receives the savings. Capital alone will not fix it.
- Quantify the exposure. Estimate Building C's energy spend and emissions, and note that 15% of portfolio emissions sit outside direct control - this is a disclosure and target-risk issue, not just an operating one.
- Use the next lease event as the lever. Negotiate: tenant submetering and a right to data; landlord obligation to operate to a stated performance standard; cost-sharing or rent-abatement for base-building capital; a fit-out standard covering lighting and controls; and a cooperation clause for certification documentation.
- Act inside the lease boundary now. After-hours scheduling, plug-load management, setpoint discipline within the allowed range, and occupant engagement reduce load without touching landlord plant.
- Bring the owner a business case, not a request. Owners respond to vacancy, tenant retention and asset value. Frame upgrades in those terms.
- Manage the target honestly. Either negotiate the lease or plan to cover the residual with off-site renewables and be explicit in reporting that this portion is not directly controllable.
3. What goes on the board dashboard each quarter, and why those items rather than others?
Read the worked answer
The dashboard must let the board judge whether the 2030 commitment is on track, not just whether activity is happening.
- Absolute tCO2e against a glidepath, not just year-on-year change. A 30% cut by 2030 requires roughly a straight-line or front-loaded path; showing only annual variance hides drift until it is unrecoverable.
- Intensity (kgCO2e/m²) alongside absolute, so portfolio growth or divestment is not mistaken for performance.
- Capital committed vs. planned, and abatement cost of what was bought (USD/tCO2e). This is the CFO's language and exposes whether the portfolio is drifting toward expensive measures.
- Data quality and assurance status - estimated vs. metered, and any restatements of the baseline. Boards are exposed to greenwashing risk if the number is soft.
- Leading indicators: re-commissioning completions, metering coverage, lease clauses secured, renewable procurement contracted.
- Risk register: lease expiries, carbon price exposure, refrigerant phase-down obligations, divestment timing.
Rationale: lagging emissions data arrives too late to steer. The dashboard pairs the outcome with the leading actions and the money, so the board can change course while change is still cheap.