Are energy efficiency improvements unreachable?

A study released by NAIOP, the Commercial Real Estate Development Assn., suggests that office building managers find it difficult--if not impossible--to effectively balance energy efficiency requirements while keeping their structures economically feasible.

02/27/2009


According to a recent report, building managers will find it extremely challenging to meet mandated energy reduction targets while keeping their facilities economically feasible.

NAIOP, the Commercial Real Estate Development Assn. released the results of a study , initiated to determine if commercial developments could actually achieve reduction targets of 30% to 50% above the ASHRAE 90.1-2004 standard, a benchmark often cited in legislation and calls for mandatory reductions. The NAIOP findings show that while significant energy efficiencies are possible (varying by climate zone), reaching 30% reduction above the standard wouldn’t be feasible with common design approaches and would exceed a 10-year payback—and achieving 50% reduction above the standard isn’t possible.

The study was conducted by ConSol , a Stockton, Calif.-based energy consulting firm. The company modeled their data with the Dept. of Energy’s EnergyPlus v2.2 energy simulation program, using a recently completed four-story, 95,000-sq-ft, Class A office building as a prototype. Research modeled the prototype in three climate zones represented by Chicago, Baltimore, and Newport Beach, Calif. Modeling included enhanced wall and roof insulations; varying levels of exterior glazing; higher-efficiency window assemblies; reduced air infiltration via the installation of an air barrier; reduced lighting power densities; higher-efficiency HVAC equipment; and photovoltaic electricity energy generation.





No comments
Consulting-Specifying Engineer's Product of the Year (POY) contest is the premier award for new products in the HVAC, fire, electrical, and...
Consulting-Specifying Engineer magazine is dedicated to encouraging and recognizing the most talented young individuals...
The MEP Giants program lists the top mechanical, electrical, plumbing, and fire protection engineering firms in the United States.
Integrating electrical and HVAC for energy efficiency; Mixed-use buildings; ASHRAE 90.4; Wireless fire alarms assessment and challenges
integrated building networks, NFPA 99, recover waste heat, chilled water systems, Internet of Things, BAS controls
40 Under 40; Performance-based design; Clean agent fire suppression; NFPA 92; Future of commissioning; Successful project management principles
Transformers; Electrical system design; Selecting and sizing transformers; Grounded and ungrounded system design, Paralleling generator systems
Commissioning electrical systems; Designing emergency and standby generator systems; VFDs in high-performance buildings
Tying a microgrid to the smart grid; Paralleling generator systems; Previewing NEC 2017 changes
As brand protection manager for Eaton’s Electrical Sector, Tom Grace oversees counterfeit awareness...
Amara Rozgus is chief editor and content manager of Consulting-Specifier Engineer magazine.
IEEE power industry experts bring their combined experience in the electrical power industry...
Michael Heinsdorf, P.E., LEED AP, CDT is an Engineering Specification Writer at ARCOM MasterSpec.
Automation Engineer; Wood Group
System Integrator; Cross Integrated Systems Group
Fire & Life Safety Engineer; Technip USA Inc.
This course focuses on climate analysis, appropriateness of cooling system selection, and combining cooling systems.
This course will help identify and reveal electrical hazards and identify the solutions to implementing and maintaining a safe work environment.
This course explains how maintaining power and communication systems through emergency power-generation systems is critical.
click me