Colorado Energy Code

The Colorado Energy Code establishes energy efficiency standards for building systems, including audiovisual components. The code requires buildings to meet specific efficiency targets through equipment selection, system design, control strategies, and operational procedures. For AV integrators, energy code compliance means understanding equipment efficiency ratings, designing control systems that reduce energy consumption, and coordinating with building-wide energy management systems.

Colorado adopted the International Energy Code (IEC) with amendments. The code applies to:

New construction: All new buildings must meet energy code requirements
Major renovations: Significant modifications to existing buildings trigger energy code compliance
System replacements: When major systems are replaced, replacements must meet current energy code
Equipment upgrades: New HVAC, lighting, or power distribution systems must meet efficiency standards

Compliance pathway options:

Prescriptive compliance: Meet specific requirements (use ENERGY STAR equipment, install occupancy sensors, specific HVAC efficiency)
Performance compliance: Design system to meet overall energy consumption target (calculated using energy modeling software)

Most projects use prescriptive compliance because it's simpler and less expensive than performance-based energy modeling.

While the energy code doesn't mandate specific AV equipment, it does affect how AV systems are designed and operated:

Equipment Efficiency — Energy code requires or encourages:

ENERGY STAR rated equipment: Computers, displays, projectors must meet ENERGY STAR standards for efficiency
High-efficiency HVAC: Equipment rooms require efficient cooling (typically 16+ SEER for air conditioning)
LED lighting: All lighting must be LED (incandescent and halogen prohibited in most spaces)
Power supplies: Equipment power supplies should meet 80+ Bronze or better efficiency ratings

Control Systems — Energy code requires automatic controls to reduce consumption:

Occupancy sensors: Lights, displays, and equipment must automatically shut off when spaces are unoccupied
Daylight harvesting: Lighting systems should reduce output when daylight is available
Temperature setback: HVAC should reduce heating/cooling during unoccupied times
Equipment shutdown: AV equipment should power down automatically during non-use

Building Integration — Energy code requires AV systems to integrate with building energy management:

BACnet/XML integration: Large systems should integrate with building automation systems
Demand response: Systems should participate in utility demand response programs when available
Metering: Large installations should include power metering to track consumption

ENERGY STAR Program — ENERGY STAR is a voluntary program identifying energy-efficient products. ENERGY STAR equipment typically uses 10-30% less energy than non-rated equipment.

ENERGY STAR Coverage for AV:

Computers & monitors: ENERGY STAR rated for laptops, desktops, and displays (requires sleep modes and lower operating power)
Projectors: ENERGY STAR rated projectors use efficient lamps and power supplies (5-15% more efficient than baseline)
Televisions: ENERGY STAR rated TVs meet specific power consumption limits
Network equipment: Switches, routers, and WiFi equipment must meet ENERGY STAR standards
Amplifiers: High-efficiency amplifiers (Class D/Hypex) use 50-70% less power than Class AB designs

Selecting Efficient Equipment:

Specify ENERGY STAR rating in equipment RFQs
Calculate total cost of ownership (equipment cost plus 5-year energy cost)
Consider higher efficiency even if equipment cost is slightly higher (payback through energy savings)
Verify ratings with ENERGY STAR database before specifying

Proper control system design is critical to meeting energy code requirements:

Occupancy-Based Control — Lighting, displays, and equipment should automatically turn off when spaces are unoccupied:

Occupancy sensors: Passive infrared (PIR) or microwave sensors detect presence/absence
Time-based shutdown: Equipment powers down after a programmed time of non-use (typically 15-30 minutes)
Manual override: Users can keep systems on if longer occupancy is needed
Coordination: AV system shutdown should coordinate with lighting control (turning off displays turns off related lighting)

Daylight Harvesting — In spaces with windows, lighting should automatically reduce when daylight is sufficient:

Daylight sensors: Sensors measure light level in the space
Automatic dimming: Lights automatically reduce output to maintain target light level
AV integration: Video displays may need to increase brightness when daylight is bright to remain visible

Demand Response — In areas with time-of-use electricity pricing, systems should reduce consumption during peak demand periods:

Smart grid integration: Systems receive signals from utilities to reduce consumption during peak periods
Equipment scheduling: Non-critical equipment powers down during peak demand times
Load shifting: Equipment operation schedules shift to off-peak times when possible

Power Supply Selection — Equipment power supplies should be efficient:

80+ Bronze: 80% efficiency minimum (acceptable baseline)
80+ Silver: 85% efficiency minimum (good standard for new equipment)
80+ Gold: 90% efficiency minimum (best practice for new equipment)
80+ Platinum: 92% efficiency minimum (premium option, rarely required)

Higher efficiency power supplies cost 10-20% more but reduce energy consumption and heat generation in equipment rooms.

Power Metering — Large installations should include metering to track energy consumption:

Whole-system metering: Measures total power consumption of entire AV system
Circuit-level metering: Measures consumption of major loads (lighting, displays, amplification)
Equipment-level metering: Measures consumption of individual equipment pieces
Data logging: Records consumption over time to identify efficiency opportunities

Data Analytics — Use metering data to:

Identify equipment consuming more power than expected (potential failures)
Verify occupancy-based controls are working (consumption should drop when spaces unoccupied)
Optimize equipment settings and scheduling
Generate energy reports for clients

Integrate with building energy management system — Large venues should integrate AV systems with building-wide energy management:

Common platform: Using same control platform for HVAC, lighting, and AV simplifies operation
Coordinated scheduling: Equipment scheduling coordinates across building systems
Unified reporting: Single dashboard shows energy consumption across all systems
Automated optimization: System automatically optimizes energy usage across building

Design for flexibility — Energy requirements evolve over time:

Modular systems: Design systems to accommodate future equipment replacement
Software-based control: Use software to control occupancy thresholds, shutdown times, and settings (easier to adjust than hardware)
Future-proof specifications: Specify standards that will remain relevant as efficiency improves

Prioritize occupancy-based control — Occupancy-based shutdown is the single most effective energy-saving strategy:

Single largest impact: Turning off equipment when spaces are empty saves 30-50% energy
Easiest to implement: Occupancy sensors and time-based shutdown are straightforward
User-friendly: Automatic off is transparent to users (faster than manual operation)

Design Phase:

Identify energy code requirements for the project
Select ENERGY STAR equipment and high-efficiency components
Design control systems with occupancy-based shutdown
Calculate expected energy consumption (if performance-based approach)
Document energy design decisions

Specification Phase:

Include energy performance specifications for all equipment
Specify ENERGY STAR ratings and efficiency levels
Define occupancy sensor types and adjustment procedures
Specify power metering and data logging (if required)
Include commissioning procedures for energy controls

Installation Phase:

Verify all equipment meets specified efficiency ratings
Install occupancy sensors and test operation
Commission control systems and verify automatic shutdown
Calibrate sensors and adjust thresholds
Document as-built energy specifications

Verification Phase:

Measure power consumption before and after installation
Verify occupancy controls are working
Commission metering equipment if included
Train building staff on energy system operation
Provide energy operation manual to client

Energy code compliance reduces operating costs and environmental impact:

Lower energy bills: Systems designed for efficiency consume 20-40% less energy than typical systems, saving thousands of dollars annually
Environmental benefits: Reduced energy consumption lowers greenhouse gas emissions
Regulatory compliance: Non-compliance can result in failed building inspections and certificate of occupancy being withheld
Client satisfaction: Clients appreciate lower operating costs and appreciate environmental responsibility
Competitive advantage: Energy-efficient systems are increasingly expected by clients and facility managers

Specifying old equipment technologies. Class AB amplifiers, halogen lighting, and incandescent lamps are inefficient and often non-compliant with current energy codes. Always specify current efficient technologies.

Assuming energy code compliance is automatic. Energy efficiency doesn't happen by accident. Explicit design choices (ENERGY STAR equipment, occupancy sensors, control integration) are required for compliance.

Skipping occupancy sensor commissioning. Installing sensors without properly adjusting detection ranges and thresholds causes false triggering or failure to detect presence. Commission sensors carefully and provide user instructions.

Not integrating with building controls. Standalone AV systems operating independently of building energy management miss optimization opportunities. Integrate with building controls when possible.

Underestimating occupancy sensor coverage. A single occupancy sensor may not detect motion in all areas. Use multiple sensors in large spaces to ensure full coverage and prevent false off-states.

Make energy performance a design requirement. Include energy targets in the design brief and make ENERGY STAR compliance a baseline specification.

Educate clients on energy payback. Help clients understand that higher-efficiency equipment costs more upfront but saves money through lower operating costs. Calculate payback periods (typically 2-5 years).

Include energy commissioning in project scope. Proper commissioning of occupancy sensors and control systems is essential for performance. Budget time and cost for this work.

Provide energy operation documentation. Train facility staff on energy system operation and provide clear documentation of how to adjust thresholds and optimize performance.

Track energy performance after installation. Use metering data to verify systems are performing as designed and identify further optimization opportunities.

Colorado Energy Code

Energy Code Overview

Energy Code Requirements for AV Systems

Equipment Efficiency Standards

Control System Design for Energy Efficiency

Power Management & Monitoring

System Design Best Practices

Energy Code Compliance Process

Why It Matters

Common Pitfalls

Implementation Best Practices

Related