Commercial Lighting & Controls

Base Building Lighting & Smart Controls Upgrade

Project Type: Commercial Office Tower

Scope: Custom LED Retrofit + Smart Building Controls

The Challenge

The tower was fully occupied throughout construction. All work needed to be performed overnight, and the lighting system had to be fully operational every morning before tenants arrived. The existing fixtures were not designed for LED technology or modern smart building controls, and replacing them entirely would have required significant disruption.

ENS Solution

Energy Network Services engineered a custom retrofit approach that modernized the building without replacing the existing luminaires.

Work Completed

• Designed a custom LED retrofit kit for base building fixtures

• Integrated Lutron wireless sensor nodes into each fixture

• Designed, installed, and commissioned a Lutron Athena building-wide control system

• Phased overnight installation and commissioning

• Integrated multiple tenant spaces into the central system

Tenant spaces were onboarded into the building platform as occupancy changed, allowing future tenants to connect to the existing smart infrastructure.

Challenges

• Overnight-only installation windows

• Maintaining daily building operation

• Working within occupied office spaces

• Commissioning floors in phases without affecting tenants

Energy Performance

• LED upgrade savings: 58–68%

• Smart controls (occupancy + daylighting): 15–20% additional

• Total lighting energy reduction: up to 75%

Results

• Building fully modernized without daytime shutdowns

• Centralized lighting scheduling and monitoring

• Reduced maintenance and service calls

• Improved tenant lighting comfort

• Future-ready smart building infrastructure

Full Tower LED Conversion & Controls Optimization

Project Type: Commercial Office Building

Scope: LED Retrofit + Lutron Controls Recommissioning

The Challenge

The building relied on aging fluorescent lighting and a lighting control system that had drifted out of calibration over time. Because the property was fully occupied, construction had to be completed after business hours with the system operational each morning.

ENS Solution

Energy Network Services completed a full lighting modernization while preserving daily operations.

Work Completed

• Converted entire building to LED lighting

• Recommissioned the Lutron lighting control system

• Re-zoned lighting areas

• Calibrated occupancy sensors and schedules

• Completed all work afterhours

Challenges

• Limited nightly work windows

• Varying tenant layouts across floors

• Maintaining consistent lighting levels each day

Energy Performance

• LED conversion savings: 50–60%

• Control optimization savings: 10–15%

• Total lighting reduction: approximately 60–70%

Results

• Immediate electrical consumption reduction

• Lower maintenance costs

• More consistent lighting across floors

• Reduced cooling load due to lower heat output