DOE Rules ASHRAE 90.1-2004 Our Nation's New Energy Standard Starting 2010
Meanwhile, 24 states have already adopted ASHRAE 90.1-2004 as the basis for their commercial energy codes, while another three have adopted 90.1-2007. LEED awards energy points based on exceeding 90.1-2004. By Executive Order by President Obama, all Federal facilities must meet 90.1-2004's mandatory requirements and go at least 30% beyond its lighting power densities wherever possible.
There are several significant differences between 90.1-2004 and the previous national standard. Standard 90.1-2004:
- Imposes interior lighting power allowances are generally 13-50% lower than those in 90.1-1999-20% more restrictive, on average.
- Requires that internally lighted exit signs not exceed 5W per face.
- Requires automatic shutoff of interior lighting when it is not being used, and recognizes scheduling, occupancy sensors and "occupant intervention" as acceptable methods. Standard 90.1-2004 replaces "occupant intervention" with a signal from another building system, while recognizing additional exceptions.
- Changes the "space control" section by requiring occupancy sensors be installed in classrooms (but not shop, lab and preschool through grade 12 classrooms), conference/meeting rooms, and employee lunch and break rooms.
- Expands exterior lighting requirements to cover all outdoor lighting applications.
As more states adopt 90.1-2004, and as year 2010 draws closer, electrical professionals will learn the requirements and become accustomed to appropriate solutions beforehand. Lighting Control & Design has the most up-to-date information on current State Energy Codes.
