Building type · Office Buildings
Energy audits for office buildings and corporate campuses.
Office buildings waste energy through schedules, controls and air systems that no longer match how people use the space. We find that waste and price the fix.
Typical challenges
- HVAC running for empty floors
- BAS sequences that drifted from design
- Constant-volume air systems
- Tenant demands and lease constraints
Common measures
Where office buildings save energy.
These measures come up most often in our audits of this building type. Your audit ranks them for your building.
BAS optimization
Schedules, setpoints, resets and fault detection.
Air system upgrades
Variable air volume, VFDs and demand-controlled ventilation.
Chiller plant
Chiller sequencing, condenser water reset, free cooling.
LED & controls
Fixtures, occupancy and daylight sensors, LL88 upgrades.
Tenant sub-metering
LL88-compliant metering and monthly tenant statements.
Envelope
Window film, air sealing and roof insulation.
Plug loads
After-hours equipment and server room cooling.
Demand management
Peak shaving and time-of-use rate strategies.
Compliance & incentives
Rules that apply.
- NYC LL97Office (B) limits fall from 8.46 to 4.53 kgCO₂e/sf in 2030.
- NYC LL87 & LL88Ten-year audits plus lighting upgrades and tenant sub-metering.
- NJ benchmarkingAnnual reporting for commercial buildings over 25,000 sq ft.
- IncentivesUtility custom and prescriptive incentives for HVAC, controls and lighting.
FAQ
How much can an office building save?
Controls and scheduling alone often save 10–15% of energy use. Combined with lighting and air-system upgrades, savings of 20–30% are common in older buildings.
Can work happen with tenants in place?
Yes. Most office measures are installed after hours or floor by floor, with minimal disruption.
Ready to see where your building loses energy?
Send us your building details or call an engineer directly. We reply within one business day with a recommended scope and fee.