Sector
Commercial, Public, Other, Industrial, Residential
End-use
Plug Load
Project Number
PGE 0708
Project SummaryFood processing facilities often have concurrent needs for chilling and heating water, operations that are generally provided by natural gas fired boilers and electric driven chillers. This study examines ThermoSorbersTM, combined chiller-heat pumps that provide simultaneous chilled...
Sector
Commercial, Agricultural
End-use
Process
Project Number
PGE 0706
Project Summary:This assessment measured the energy savings of a Mechanical Vapor Recompression (MVR) evaporation system compared to a triple effect evaporation system for the production of tomato paste. The MVR system used 89% less natural gas per pound of water evaporated than the triple-effect...
Sector
Commercial, Industrial
End-use
Other
Project Number
PGE 0610
Project SummaryIntroduction During 2006 Lawrence Berkeley National Laboratory (LBNL) and the Demand Response Research Center (DRRC) performed a technology evaluation for the Pacific Gas and Electric Company (PG&E) Emerging Technologies Programs. This report summarizes the design, deployment,...
Sector
Commercial
End-use
Lighting
Project Number
PGE 0608
Project SummaryReplacing the fluorescent bulbs that light frozen food and refrigerated cases in supermarkets with light-emitting diodes (LEDs) cuts electrical consumption by nearly half. In this study, 36 five-foot fluorescent lights were replaced with 60 four-foot LED light bars at a major grocery...
Sector
Other
End-use
Plug Load
Project Number
PGE 0619
Project SummaryThis research project studied the energy efficiency and power quality characteristics of power supplies used in servers. The findings revealed ways in which power consumption could be reduced, and the load capability of the servers increased. Banks of servers (also known as “data...
Sector
Other
End-use
Plug Load
Project Number
PGE 0602
Project SummaryData centers require continuous air conditioning to address high internal heat loads (heat release from equipment) and maintain indoor temperatures within recommended operating levels for computers. Air economizer cycles, which bring in large amounts of outside air to cool internal...
Sector
Residential
End-use
HVAC
Project Number
PGE 0724
Project SummaryCalifornia and other states with hot dry climates need air conditioners that maximize indoor temperature reductions for the expended energy. This is particularly true at high outdoor temperatures. This study found that existing single speed air conditioners utilizing outdoor units,...
Sector
Commercial, Agricultural
End-use
Process
Project Number
PGE 0704
Project SummaryTo prolong shelf life, produce such as lettuce, celery, and cauliflower must be pre-cooled to 35 ºF soon after harvest through the use of mobile vacuum refrigeration systems. Looking to reduce this energy use, this project evaluates the use of VFDs on the refrigeration and vacuum...
Sector
Residential
End-use
HVAC
Project Number
PGE 0605
Project SummaryResidential evaporative condensers offer effiency advantages over conventional air-cooled conditioners by utilizing evaporative cooling to improve condensing unit performance. The evaporative cooling process results in a 30-40F reduction in peak refrigerant condensing temperatures...
Sector
Commercial, Agricultural
End-use
Process
Project Number
PGE 0612
Project SummaryImplementing electrodialysis wine stabilization instead of traditional cold stabilization is demonstrated to show electrical energy and demand savings. This Project was done on 18,500 gallon of Pinot Grigio in two uninsulated tanks. Results indicated 99% (26,700 kWh) electrcity...
