BigBelly trash compactors that is. What’s that you say? You don’t know what a BigBelly is, other than the thing that seems to sit on your father in law’s middle? Well friends, a BigBelly is a trash compactor that holds five times the trash of a normal can. And Seattle - which had three in March of 2008 - is about to be getting 20 more.

First, some history. I wrote about the BigBelly in March of 2008 here in the DJC after meeting

James Poss at the Globe 2008 conference, photo by Katie Zemtseff

its inventor, James Poss, at the Globe Conference in Vancouver, B.C. The BigBelly uses a solar panel to create energy, which it then uses to compact the trash inside it. This means waste haulers have to pick them up less often, which means the people paying haulers save money.

In 2008, Poss said the cans cost between $3,000 and $4,000 but pay for themselves quickly. Poss also said Seattle is a great climate for these things, because they work on ambient light, which exists when it is cloudy or rainy.

In Seattle, the 20 BigBellys will be placed along Third Avenue between Stewart and University streets by the Metropolitan Improvement District and Seattle Public Utilities. There will supposedly be a celebration at the first installation tomorrow (Saturday) from 10:30 to 11 a.m. at the west side of Third Avenue near the Stewart Street intersection.

Now, 20 BigBellys (which at $3,000 a pop totals $60,000) may seem like a big deal. But it’s not. Not when you compare it to Philadelphia, that is, which has replaced 700 downtown garbage cans with 500 BigBellys, according to the AP story which ran in the DJC last week. The story says the cans cost between $3,195 and $3,995 each (do the math, even at the lower end, it cost Philly about $1.6 million) but should save $875,000 per year, basically paying for itself in two years and then continuing to save money after. A press release for the MID says Philly plans to save $13 million over the next 10 years from the compactors

The BigBelly in action

and recycling containers that will go next to them.

The story says the cans in Philly will be emptied five times a week as opposed to 19 times for a regular trash can. The cans also have a wireless monitoring system to tell the city when they are full.

But here’s the interesting part: how many cans has Seattle been testing for over a year now? Three. How many cans did Philly test for a year before ordering 700? Three. I’m sure part of that difference has to do with the fact that Philly got some sort of a grant (the story doesn’t say what) for installations. But I think it still underscores how cautious Seattle is about making big decisions. Is Seattle too cautious here or is it smart not to jump into something like this too quick? (If you want to read the negative perspective of BigBelly, check out EcoMetro here.)

The AP story says Philly’s not the only one with BigBelly fever. Boston has 160, says they aren’t concentrated enough and wants more. Entities in New York are using 100. Chicago has 60, and they are being used in parts of Australia, Israel and France.

Seems like somebody at least thinks they’re a good concept.

And even if if weren’t a good concept, the BigBelly sure inspires some great quotes. When I spoke with Poss for the 2008 article, he described BigBelly as “carpooling for trash.”

And the AP story says Philadelphia Mayor Michael Nutter inititially asked, “What? Who’s got a big belly?” when he was introduced to the devices.

What do you think? Is there enough of a payoff for Seattle to invest in more of these or is our system just fine the way it is?

How much trash does a “green” event produce? Evidently, a lot if you’re the U.S. Green Building Council’s GreenBuild 2007. The annual conference, held in Chicago last year, created 44 tons of waste.

Granted, 91 percent of it - or 40 tons -  did not end up in the landfill, according to Dan Bulley, chair of the Volunteer Committee for Greenbuild in 2007. Instead 300 college students sorted through the waste.

Of the 40 tons of waste diverted, Bulley said seven tons were food scrap, and six tons were wood from expo displays in the exhibit hall.

What’s 40 tons of waste? For people around Seattle, it’s all the dog droppings left in Snohomish County over two days. For out of towners, it’s 260,000 items that washed up on New Jersey’s beaches over a year. For the U.S., it’s on the low end of the total waste a person produces in a year.

When you rationalize the numbers out, the mass waste makes some sense…. it was a week long conference and expo with an exhibit hall and 25,000 participants, so Bulley says it works out to about 3.5 pounds of waste per person (nevermind most people only stayed three days but we’ll go with it….).

But does mass waste ever make sense? The diversion fact is commendable. And the image of college students rifling through my waste (yes, I was at GreenBuild) is something to ponder. But did that 44 tons of waste need to be created in the first place?

Think about it… thousands of people gathering together to figure out how to save the environment and how to build green. And yet they still can’t not use things. 44 tons of things. Thrown away. Isn’t green building all about the idea that the little things - like 44 tons of waste - matter?

No wonder right wing talk show hosts call greenies hypocrites.

Remembering back, the hefty 187-page program could have been …. digital! Or it could have been easier to compost food scraps, or recycle nametags.  Those participating in the expos could have used less literature or cards that pointed attendees to a Web site.

Or, as a green building consultant said to me the other day, the entire conference could have been virtual. If 44 tons of trash sounds like a lot, imagine the carbon emissions from the millions of miles of air travel. (I for one met people from the U.K, Japan, Canada….)

This is by no means an isolated event, just a high profile one. But it seems to me an example of the kinks, shall we say, in the green building movement. Do I have something here or is it too much to think that people promoting green … could change the way they do things? It’s like not seeing the forest for the trees (that were at least, diverted).

For more, Building Design + C0ntruction runs the full press release here. FrontBurner asks if green trash is still green here. Or in another scenario from Wired Magazine here, Brandon Keim explores a Japanese city that just stopped waste collection. Now there’s an idea.