Five Percent: Conserve Energy

Climate Change Is Important: Energy Conservation is the First Step


September 28, 2010

Always On: Hunting, Finding and Saving Electricity (Still!)

Category: Household,Save Electricity,Tips – Tom Harrison – 10:28 pm

Phantom Power Hunt

Always On (photo: uberculture)

As part of my participation in a beta test for PlottWatt (very cool), I have come to understand that our house’s “always on” electrical load accounts for about one third of our consumption. Perhaps more vampires? Doesn’t seem plausible.

The only way to find out: measure each outlet with a Kill-A-Watt! (Can you say “obsessive“?) But occasional obsessiveness is good for the soul. And budget.

So on the last grey Saturday, me and my trusty Kill-a-Watt went around seeing if we could answer the question: how much could we save?

The answer was neither encouraging nor discouraging: it was simply illuminating. (And, another $70/year, tax free savings — see the link to my spreadsheet below.)

And isn’t that what it’s all about? (more…)

September 27, 2010

Mac Sleep Problems Resolved (and Explained)

Mac Won't SleepSay it isn’t so — my Macbook will not sleep! When I abandoned Windows for a Macbook, I hoped I would resolve a problem with not sleeping (entering sleep mode) that I have posted about before — my Windows XP Sleep and Hibernation posts continue to generate thousands of views, but alas, Snow Leopard, OS X doesn’t always sleep, either.

I have done a fair amount of research and think I understand why my macbook will not enter sleep mode, and how the OS X sleep process works. And importantly (and unlike Windows): what you can do to resolve the issue. The short answer is: there’s no built-in way to ensure your Mac goes to sleep automatically, but there’s a great bit of free software you can install, which in my tests works perfectly: PleaseSleep. (more…)

September 22, 2010

It’s Pointless To Save A Little

Category: Conservation,Household,Save Electricity – Tom Harrison – 4:26 pm

Update: 9/24/10: Measured TiVo standby and it saves only 1W. Phooey! I confirmed with TiVo support that “we don’t recommend turning it off and on repeatedly, but the system is designed to handle power outages, so it should be fine”. They also point out the newest model of TiVo are Energy Star compliant, standby does reduce power consumption and at idle, its around 20W, but honestly, that seems needlessly high to me.

TiVo energy useI want to put a timer switch on my TiVo because it uses 37 watts all the time (which is good compared to normal cable boxes, which TiVo replaces). But I only ever watch or record shows between noon and midnight — the TiVo is on half the time for no reason.

So I asked a question on the public support forum about whether turning the device on and off like this would hurt it.

I got a little helpful advice, but a flood of responses saying things like:

  • The energy used to make the timer would never be offset by the amount of energy you save
  • Don’t forget that the timer is an electrical device and consumes energy
  • It boggles my mind that people would waste their time on saving a few cents a day
  • The amount of energy you might save is tiny compared to X
  • Don’t forget how much money you spend buying all the things that help you save energy
  • It’s behavior like this that got us into all this trouble with mortgages and buying too much stuff

The first two items are potentially valid. (more…)

September 21, 2010

PlotWatt at Energy Circle, and Programmable Thermostats at Hohm

Category: News,Save Electricity,Save Fuel,Tips – Tom Harrison – 12:49 pm

PlotWatt logoHere are a couple of posts I have written elsewhere. Everything you want to know about how (not) to program your thermostat, posted on the Microsoft Hohm blog, and a pretty cool post about an incredibly cool new bit of software for recognizing patterns in electricity use data with pretty pictures and all, called PlotWatt.

I never have time to write here any more :-(

September 16, 2010

Review: SodaStream Gets Fizzy Water Right

Category: Green Reviews,Household,Organic & Local Food – Tom Harrison – 2:42 pm

sodastreamI continue to be stunned when I am at the market and see people buying bottled water, soda, flavored seltzers and other such products. They are heavy. They use plastic or aluminum containers. They are expensive. In short, a huge waste of resources at every level. And if you like soda (pop) it’s the same deal.

So make your own seltzer and soda at home — it’s easy, convenient, and saves money, and may also be good for the environment.

Not Your Dad’s Old Seltzer Bottle

I used to buy flavored seltzer in one liter bottles — lime, orange, and other flavors and fizzy water (no sugar). Then I recalled that when I was a kid, my dad had a seltzer bottle — one (CO2) charger would make a quart — a while back, I bought a Liss Soda Siphon and would regularly order packs of 10 chargers in the mail — I think they were about 50 cents a liter, which compares favorably to the 99 cents a liter at the store.

But the big wins: no bottles to lug, and as much water as you needed when you wanted it (as long as you keep chargers on hand). And no bottles in the landfill or to recycle. It was a reasonable solution, but after a year or so, a couple of the parts on the bottle started failing so that gas would leak out. I could usually make it work, but it was always a bit of a hassle to make a new batch. I think repair parts are available, so it’s still a pretty good option. (more…)

September 10, 2010

Review: Merchants of Doubt

Category: Climate Change,Companies,Technology – Tom Harrison – 11:39 am

I sometimes fail to understand the breadth, depth and complexity of human behavior. After reading Merchants of Doubt: How a Handful of Scientists Obscured the Truth on Issues from Tobacco Smoke to Global Warming I have been reminded how perfectly rational it can be for a person to promote a position they know to be wrong, for some greater objective.

The book is written by two science historians and is very readable. They make some rather startling and direct assertions, extensively backed up with footnotes (a significant part of the book is the footnotes themselves). Their research took five years and is careful, fact-checked, and cohesive. Their conclusions are, in short, that for whatever reasons, a very small number of scientists … real scientists … found purpose and financial support in undermining the findings of real science. (more…)

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