Energy policy and regulations had been rolled out continuously to enhance building energy efficiency in the United States. The International Energy Conservation Code (IECC) energy standard specifies the minimum energy-related requirements for a building or major renovation in a jurisdiction that has adopted this standard. Building energy codes and standards set minimum requirements for energy—efficient design and construction of new buildings as well as additions and renovations of existing buildings that impact energy use and emissions for the life of the building. And anytime a jurisdiction adopts a standard as their energy code, they frequently make modifications to that standard.
In the United States, commercial building energy consumption is one big issue to be mentioned. To encourage national green career, each state in America has carried out relevant policy to enhance green saving programme.
California Title 24
Prior to July 1, 2014, a separate Title 24 database was maintained by the CEC listing lighting control systems that were self-certified by manufacturers to meet the requirements outlined by CA Title 24 energy code.
Title 24 is part of the California Code of Regulations Building Energy Efficiency Standards with the goal to reduce energy usage in building spaces. California building energy standards have saved more than $74B in electricity costs since 1975. Previous versions of Title 24 outlined requirements for products to make spaces energy efficient. In the past the CEC maintained a product list of Title 24 compliant products for customer information.
As of July, 1 2014 the Title 24 2013 version of code no longer maintain a product list of Title 24 compliant products. The current version of code outlines standards that spaces must meet in order to meet Title 24 requirements. In addition the new version of code defines that a product cannot be Title 24 compliant it can only contribute to the space being a Title 24 compliant space.
- Applied in new building and retrofit market
- Lighting control part started in some states, but not all
- Dimming anyway will be fine
- Increasing daylight control requirement
- Building commissioning and functional testing requirements
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