Case Study: 388 Market Street achieves accurate, automated annual energy budgets with Gridium Billcast

Luxury Living Complicates Annual Budget

388 Market is a 26‑story mixed‑use tower in downtown San Francisco with Class‑A offices, street‑level retail and seven floors of luxury apartments. The property faced a difficult annual budgeting environment: just two PG&E meters service both commercial and residential loads, occupancy and tariff changes (including loss of a discount tariff) drove per‑unit cost increases and high variance in historical budgets, leaving managers seeking tighter, more reliable forecasts.

Gridium’s Billcast pulled multi‑year billing and interval data directly from PG&E (100,000+ data points), combined it with hourly weather and built per‑meter statistical models that learn occupancy shifts and forecast usage under multiple weather scenarios. Coupled with a utility rate engine that captures complex residential tariffs and changing commercial rates, the automated solution eliminated manual data entry, produced accurate usage and cost projections, clarified ranges of outcomes, and let the property team confidently and quickly set the annual budget.

388 Market Street

Jacqui Robinson

Senior Property Manager