- Case Studies: Zero Net Energy Non-Residential Buildings
to perform at zero net energy (ZNE) consumption over the course of a year. Extensively monitored under the Pacific Gas & Electric Company's ZNE Pilot Program, each has proven to meet or exceed that level of performance for at least one year of post-construction occupancy.
These case studies show that building industry leaders who target this new level of building performance can meet this challenge, reinforcing California's reputation for being the incubator and early adopter of transformative ideas with practical feasibility.
- Design Brief: Demand Response
that allows electricity consumers to receive financial compensation for temporarily reducing or rescheduling power use upon request. DR creates opportunities for building owners and managers to realize financial, operational, and environmental benefits by changing energy use patterns in response to market signals.
- e-News #74: Combined Heat and Power
or it may be old and inefficient. Either way, the electricity used in the building will likely be produced with inherent inefficiencies. The efficiency of fossil fuel based electricity production averages 34% (although new combined cycle plants can exceed 50% efficiency). The ultimate efficiency of any building pulling electricity from the grid is limited by that number.
- Design Brief: Centrifugal Pump Application and Optimization
perform many important functions to control the built environment. The physics and basic mechanics of pumps have not changed substantially in the last century.
- Design Brief: Drivepower
the energy use of a drivepower system-which includes the motor, its controls, and the connection between the motor and the equipment it drives-designers need to consider how these components operate as a system rather than looking at them on an individual basis.
- Design Brief: Industrial Process Heat Recovery
in the industrial and
manufacturing sectors, and it often results in a large amount of
waste heat that is discharged into the atmosphere.
- Design Brief: Pumping System Troubleshooting
encountered in existing buildings during retro-commissioning
- Case Studies: Wastewater Treatment Plant Achieves Energy and Resource Savings with Efficient Design
Services District (DSRSD) redesigned their plant to increase its
capacity and better serve the residents of Dublin and San Ramon.
The plant's engineers worked with PG&E staff under the auspices
of a statewide investor-owned utility sponsored energy efficiency
program, Savings By Design (SBD), to analyze the plant's energy
consumption patterns and design it as efficiently as possible.
- e-News #23: Using a System Approach to Drivepower
hundreds of motors, whirring and chugging away unseen. Most of them
are used in heating, ventilating, and air conditioning applications
as drivers for fans, pumps, and air conditioning compressors.