Inside Electrical Category Codes
- A: Residential
- B: Industrial
- C: Commercial/Institutional
- D: Energy Management/Power Quality
- E: Lighting Maintenance & Retrofit
- F: Marine
- G: Sign
- H: Motor Repair
- I: Instrumentation/Testing
- J: Service - Residential
- K: Service - Commercial & Industrial
Energy Solutions Category Codes
- L: Green Building/Sustainable Construction
- M: Energy Efficiency / Conservation
- N: Energy Audits
- O: Solar PV Systems
- P: Wind Generation Systems
- Q: Geothermal & Other Energy Alternatives
- R: Solar/Wind Generation - Utility Scale
Line Category Codes
- S: Substations
- T: Transmission
- U: Underground Distribution
- V: Overhead Distribution
- W: Distributed Generation/Cogeneration
- X: Line Clearance/Tree Trimming
- Y: Communications/Data (External)
- Z: Street Lighting/Traffic Control
Systems Category Codes
- 1: Communications/Data (Internal)
- 2: Fire Alarm/Life Safety/Nurse Call
- 3: Building Automation
- 4: Industrial Controls
- 5: Security Systems/CCTV/Access Control
- 6: CATV
- 7: Home Automation/Networking
- 8: Sound/Public Address/Intercom/Paging
