Demand Response & Daylight Controls: What Every Project Manager Needs to Know

California’s energy code continues to evolve, and in 2025, demand response (DR) and daylight controls are no longer optional—they’re required for most commercial lighting projects. For project managers, understanding these systems is essential to keeping jobs compliant.

What Are Demand Response Controls?

Demand response controls allow buildings to reduce lighting loads automatically during peak utility hours. This reduces strain on the grid and lowers energy costs. Title 24 requires demand response capability in most projects over 10,000 sq. ft.—and sometimes smaller remodels.

Daylight Controls Explained

Daylight harvesting uses sensors to dim lights when natural light is available, saving energy without sacrificing comfort. These systems must be properly calibrated and tested to pass inspection.

Common Compliance Challenges
• Incorrect sensor placement or programming
• DR systems not tied into lighting controls
• Daylight sensors not calibrated to space conditions
• Missing documentation during inspection

Why Testing Matters

Even the best-installed systems can fail without proper verification. Title 24 lighting acceptance testing ensures:
• Sensors function and dim correctly
• Demand response controls activate during peak signals
• All documentation meets code requirements

The Smart Move for Project Managers

By scheduling acceptance testing early, you prevent delays, rework, and failed inspections.

Don’t leave compliance to chance. Ensure your project passes the first time with certified Title 24 lighting inspection and demand response testing. Contact Title 24 Lighting Inspection today to book your inspection.