IN THE NEWS
COGEN REMAINS A VIABLE OPTION
Combined heat and power, or cogeneration, is an efficient power/heat delivery option almost 75% more efficient than energy delivered from the grid. The national goal for added CHP capacity under President Obama is 40 GW. Currently, about 82 GW is the installed capacity—about 8% of the U.S.’s generating capacity. Pictured is MTU Onsite Energy’s Series 4000 natural gas engine. The company has boosted electrical efficiency in the generator by 44.3% for use in standalone or cogen operations. MTU Onsite Energy www.mtuonsiteenergy.com CIRCLE 305
“ EN ERGY MO N ITO R IN G H A S B ECOM E MO R E PR E VA LENT FO R EN ERGY M A N AG E M ENT PU R P OSE S . TH AT ’ S TH E SEC TO R TH AT ’ S SELLIN G TH E MOS T.”
The Government Services Administration (GSA) is known as the federal government’s landlord, but it also pays a hefty amount toward Uncle Sam’s annual electricity bill, as well. Working with the National Renewable Energy Laboratory, GSA’s Green Proving Ground program recently tested advanced power strips, which can be programed to turn on and off based on a user’s work schedule. The schedule timer helped reduce connected devices’ electricity use by an average of 48%. The highest returns were found in printer rooms and kitchens, where payback periods for the new power strips were as short as 0.7 years.
VAMPIRE LOAD REDUCTION
Wattstopper’s Isolé IDP-3050 power strip matches surge suppression with automatic plug-load control. Six of the strip’s eight outlets are controlled by the connected personal occupancy sensor, which provides a time delay up to 30 minutes. 30
Honda installed two 1.7 MW GE wind turbines on the site of its Russells Point, Ohio, manufacturing plant, making it the first major U.S. auto plant to obtain a sizable portion of its electricity from onsite wind turbines, estimated to produce 10% of the plant’s annual demand.
“Ten years ago, 80% of meters were manually read,” says Hull. Now, in contrast, he says 80% are tied into systems that both record and timestamp their readings. And the resulting real-time information is being used to more efficiently structure how the BAS manages a full range of building functions. Some systems can even communicate with electric utility rate signals and monitor performance following calls to reduce demand, under demand-side management (DSM) rate programs. The meters’ time-stamped data offers proof to utilities that loads were reduced by the specified amount and for required durations. 32
Wattstopper www.wattstopper.com CIRCLE 304
www.nzbmagazine.com NET ZERO BUILDINGS | 06.14 | 31
Highlighting the Path Toward Net Zero Building Design.