Energy Code Ace has created a summary of California Title 24 code changes for Non-Residential Buildings. The 2022 Title 24, Part 6 Building Energy Efficiency Standards (Energy Code or Title 24, Part 6) updates the 2019 Energy Code.
The 2022 Energy Code is effective as of January 1, 2023. Any projects that apply for a permit on or after this date will be subject to the 2022 Energy Code. Information and documents are available at: https://www.energy.ca.gov/programs-and- topics/programs/building-energy-efficiency-standards/2022- building-energy-efficiency .
Below are the key lighting changes to the Energy Code that apply to nonresidential buildings such as hotels, motels, factories, office buildings, retail spaces and healthcare facilities. In the 2019 Energy Code, high-rise multifamily buildings were grouped with nonresidential buildings. The 2022 Energy Code reorganizes low-rise and high-rise multifamily buildings into one building type and moves requirements for multifamily buildings to their own subchapters.
INDOOR LIGHTING:
Lighting Controls
- 130.1
Mandatory Requirements
Demand-responsive Lighting Controls: There is a new trigger in §110.12(c) based on lighting wattage, not square footage. When general and all other lighting is subject to the multilevel requirements of §130.1(b) for a project 4,000 watts or more, demand-responsive controls are required. A demand-response signal must be capable of automatically reducing general lighting as specified in Table 130.1-A requirements. All other lighting can also be included but is not required.
Manual Area Controls: There are new exceptions to the manual area control accessibility and location requirements.
Shut-OFF Controls: Offices over 250 ft2 have new shut-OFF control requirements.
Daylighting Controls: Secondary daylighting controls are now mandatory along with primary and skylit daylighting controls.
Power Adjustment Factors and Lighting Power Allowances
§140.6(a)
Prescriptive Requirements
Since offices over 250 ft2 now have Mandatory occupancy sensor control requirements, the large office power adjustment factors (PAFs) have been revised on Table 140.6-C.
The allowed indoor lighting power density has been reduced for many types of buildings and spaces:
- Table 140.6-B: Complete Building Method
- Table 140.6-C: Area Category Method
- Tables 140.6-D, E, F, and G Tailored Methods
Indoor Lighting Alterations
- 141.0(b)2I
Prescriptive Requirements
Changes are made to Table 141.0-F Control Requirments for Indoor Lighting Systems Alterations. Alterations do not need to meet new occupancy sensor requirements for offices 250 ft2 or larger that either:
- Use 80% or less of allowed wattage allowance of §140.6
- Reduce wattage one-for-one over 40%
OUTDOOR LIGHTING:
Outdoor Lighting Zones
Title 24, Part 1 §10-114
Mandatory Requirements
The 2022 Energy Code changes how lighting zones LZ1, LZ2, and LZ3 apply. In Table 8, excerpted from Table 10-114-A, there are two urban zones, and new examples are given. See the excerpt below.
Outdoor Lighting Power Allowances
- 140.7
Prescriptive Requirements
Table 140.7-A General Hardscape Lighting Power Allowance has revised wattage allowances. Asphalt and concrete are no longer differentiated on the table.
An additional allowance for security cameras is added to Table 140.7-B Additional Lighting Power Allowance for Specific Applications. This allowance applies when a security camera is installed within 2 mounting heights of the general hardscape area and mounted over 10 ft away from a building.
The full Energy Code Ace Fact Sheet on What’s New in 2022 for Non-Residential Buildings can be found here.
You must be logged in to post a comment.