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Green A/V Limits Phantom Power Load
This California home is shedding energy by automatically cutting power to its array of high-end electronics.
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GOLD WINNER: Best Green Home
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June 19, 2009
by Steven Castle

Most high-tech houses are cool when the electronics systems turn on, but the coolest part of this home is when the electronics turn off.

That’s because when many of the electronic devices in this house are turned off, they’re completely off—and don’t draw the “phantom” or “vampire” loads of electricity that most home electronics systems use whenever they are plugged in. In this house alone, the phantom electricity load has been cut by a third, thanks to the use of energy-efficient electronics and automating them to power down completely.

For example, the audio and video components for the two media rooms and a whole-house audio system shut off completely when a Crestron home control system sends signals to Panamax power conditioners, which cut power to the components plugged into them. In addition, a primary Crestron touchpanel in the kitchen can put secondary Crestron touchpanels throughout the house in sleep mode, thereby saving more power. And when no one’s in the house, power is cut to all the electronics.

“We simplified turning off the lighting controls and audio/video systems, and we sought out vampire loads and automated the elimination of those loads,” says Gene Quisisem, systems designer for electronics installer SoundVision of Novato, CA.

Homeowner Frank Levinson can monitor the home’s electricity use, as well as his family’s water use, via an Agilewaves energy-monitoring system. He simply logs onto a secure web page, and his energy use is charted by hour, day, month or year. He can also see how much electricity is produced by the 12-kilowatt solar panel array on the home’s roof, as well as how much hot water is made available by a solar thermal system.

“Frank is up at night watching the energy consumption of the house when people go to sleep, looking at the data, and seeing what he can do save more energy,” says Quisisem.

Going Greener
Levinson had personal and professional reasons for going green in this 4,200-square-foot house overlooking the Golden Gate near San Francisco. It’s clear when talking with him that he believes in saving energy resources, and his venture capital business, Small World Group, invests in green technology companies. “I have a bunch of friends who put in solar systems and pat themselves on the back for it, but we wanted to do more than that,” he says.



Steven Castle - Contributing Writer
Steven Castle is Electronic House's managing editor. he has been writing about consumer electronics, homes and energy efficiency topics for two decades. He is also the co-founder of GreenTech Advocates.


Equipment List

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Systems Design and Installation
SoundVision, Novato, CA
www.svsf.com

Builder
Don Larwood, Berkeley, CA

Architect
Mahoney Architects
www.mahoney-architects.com

Solar Systems Installation
Sun First!
www.sunfirstsolar.com

ENERGY MONITORING
Agilewaves hardware

SOLAR SYSTEMS
SunPower 12-kW photovoltaic system with dual inverters
Heliodyne solar thermal system and Takagi tankless water heater

AUDIO/VIDEO SYSTEMS
Pioneer Elite KURO PRO-150FD 60-inch plasma
Mitsubishi PD-5065 50-inch plasma
Chief PDR-2042B articulating wall mount
Chief PDR-UB universal articulating wall mount
Sanus extension mount SA-VMB1B
Sanus low-profile plasma mount SA-VMPL2B
Audio Control Model 860 12-channel 60-watt amplifier/equalizer
Audio Control Model 1160 16-channel amplifier/equalizer
Axis 243SA video server
Denon AVR 3808 receiver
Denon AVR 4308ci receiver
Panasonic, Blu-ray DVD player with SD card slot
Panasonic Blu-ray player set up for multiregion DVDs (2)
ReQuest F2.400 250-GB music server
Velodyne 3000-Watt Dynamic sub amp (2)
Leon Speakers Hz616 center-channel speaker,
Leon Speakers PR606-60 Profile series on-wall speakers (2)
Leon Speakers HZ414-LCR left, right, center speaker for 50-inch plasma
SpeakerCraft Aim Wide 5 in-ceiling speakers (24)
Velodyne in-wall subs (2)
Active Thermal Management cooling system
Extron video switchers
Panamax MAX 7500-PRO power conditioner & voltage regulator
Panamax power conditioner with 20-amp circuit
Panamax Powermax 8 Series surge protector

CONTROL, NETWORKING & LIGHTING SYSTEMS
Crestron home control system
Lutron HomeWorks system
Netgear Ethernet switches

OTHER SYSTEMS
Channel Vision P-0921 2-door telephone entry system
Holovision intercom entry system

ACCESSORIES
Middle Atlantic racks
Pro-Series HDMI cable
Terk XM antenna
Tributaries Series 5 audio cables



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Comments (6) Most recent displayed first.
Posted by Solar lights  on  04/22/10  at  01:13 PM

Greetings!

When the solar panel is facing the sun at noon it will produce the most power it can be it summer or winter. But there is a however involved here. In the summer the sun comes up in the north east and sets in the north west which would be behind the solar panel in the morning and late after noon.Solar lights

Posted by Gene Quisisem  on  06/23/09  at  04:01 PM

Douglas, JB, and Keith - This home is a zero-energy home.  What that means is that it produces more energy from renewable sources than it consumes.  What little natural gas is consumed is offset by excess electrical power production that is fed back into the grid.  Said in another way, the home’s energy bill is nearly $0, despite having all the comforts, convieniences and luxuries of having a showcase Electronic House.  So how much energy is this home saving?  All of it.  What if every home was a zero energy home?  We would have found energy independence as a nation.

It’s not fair to compare this project to a hybrid Cadillac Escalade, as that vehicle’s energy uses primarily fossil fuel.  It’s more appropriate to use that analogy with a “green home” that is massive in size and is loaded in features, but only offsets part of its energy use from renewable sources.  A project of that nature actually would likely have a carbon footprint that is 10x or more than that of a typical home.

Douglas, to your question, ” ... what effect do they have on the environment during manufacturing and shipping?”  When this home manufactures its own electrical power, it saves the 30% transmission loss that occurs through our nation’s grid system. 

I think that as the cost of renewable energy declines, we will discover that owning power sure beats renting it.

Posted by Steven Castle  on  06/23/09  at  03:05 PM

Douglas,
We didn’t do a good enough job explaining it in this article, but this is, as I understand, a Net-Zero home, which produces more energy than it uses. And the automation system helps with that, by automatically cutting power to heavy loads. It’s something I think we’ll see more of, especially in large homes with lots of electronics. Sure, a switch may be simpler, but those can also be left on. My bet is that we’ll see a lot more energy monitoring systems in the next few years, in big and small homes, and lower-cost control systems to help all of control those energy loads, even when we’re not there. Homes like these are just the start,

Posted by Douglas  on  06/23/09  at  01:17 AM

Just reagarding the “phantom” stuff in this article (I couldn’t read any more) - Wouldn’t it be easier to just manually turn off power outlets connected to a light switch?  What is this guy really saving?  How much do the controls cost and what effect do they have on the environment during manufacturing and shipping?  What happens when he’s finished using it?  How much energy gets used up trashing the controls?  I walk over to my entertainment system, all plugged into a single circuit that gets cut off with a light switch.  Wow.  High-tech automation.  Big deal.  “My finger sucks.  I hate using it.  Let’s buy thousands of dollars worth of automation equipment to replace my finger.”  When I leave home I flip a switch that turns off a relay that cuts power to everything.  Relay cost me nothing…trashed from a demo at mfg plant where I work.  This promotion of wasteful technology when we have the greatest automated computer built into our head just puts us deeper into debt - intelligence debt.

Posted by JB  on  06/22/09  at  01:38 PM

Agree with Keith.  Hypocritical indeed.  The green movement is designed to make people with money (like the owner of this house) “feel better” about being proactive on the environment.  He probably drives one of those Escalade hybrids as well.

http://green-agenda.com


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