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Greg Low (The Bit Bucket: IDisposable)

Ramblings of Greg Low (SQL Server MVP, MCM and Microsoft RD) - SQL Down Under

OT: Green Science and Bogus Mathematics

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Published Sunday, December 20, 2009 9:56 PM by Greg Low

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Jonathan Kehayias said:


Maybe off topic, but a good discussion nonetheless.  We've slowly made changes in our own house to try and be slightly more "green", and as you point out, some of them pay dividends, while some of them don't.  We contemplated the solar water heaters since Florida, much like Australia is sunny year round.  It is December, and while other parts of the US have 18-24" of snow forecast, we have 60 degree weather, which makes it hard to get into the holiday spirit sometimes.

We tried the water saving shower heads and found the same issues you did; we spent longer in the shower and consumed on average the same or more water.  One place we saw savings, was changing out the toilets in our house from the original 1.5 GPF (gallon per flush) toilet to a newer .75 GPF unit which is still effective but saves money.  This is actually a realized savings since the cost of the newer unit is fairly low (< $300 for a high end unit most places).  

Our biggest savings was swapping out our older A/C and Heating unit for a more modern one.  The old unit was original to our house which is 21 years old and rated a 6 SEER.  The newer unit was rated 14 SEER, and has already paid for itself 2 years later in energy costs.  Our average power bill in the summer went from $600 a month to approximately $260 a month with this change alone.  Coupled with this, for the two months we used heat in the winter our first year owning this house, we pad $500-600 a month in power versus $180 with the new unit that includes a heat pump instead of electric heat strips only which is much more efficient.

You definitely have to pay attention to the actual facts rather than just listening to the marketing blab alone.

December 20, 2009 11:04 PM

AK said:

That's right. Also many one-gallon-per-flush toilets need several flushes. Also hybrid cars do not quite deliver as promised.

December 20, 2009 11:26 PM

Paul Cahill said:

Hi Greg

The bottom line is that there are just too many humans for the planet to support. Everything else is just window dressing although I grant that letting good water go down the plug hole is plain stupid.

My hero David Attenborough is a patron of this organisation.

December 21, 2009 12:17 AM

Jon Crawford said:

The hybrid cars will do better once they become less of a novelty item, or in the more gas-guzzling type of cars like SUVs. I thought about buying a hybrid Civic, but ended up buying a regular LX because by the time the cost differential would have been made up in gas savings, I'd already have paid the car off anyway.

December 21, 2009 10:23 AM

WIle said:

I think you are spot on Greg.  Even your quoted facts can be found contradicted if you look hard enough.

Looking at "Green" and what we are up to and what can be done is SUCH A MUDDY POND.   Also...  as happens in software,  developments in tech are not shared until the developer has made his fortune...   even then it is sometimes suppressed.!45E5B24B1DAF822E!308.entry  will illustrate the absurdness and the irony for those who agree.

So we look to our leaders to light the path...  and find a bunch of squabbling nutcases.  The Greens dont even have a defined plan for us. I dont know that an answer has presented Greg...  But I will certainly keep my ear to the ground

December 23, 2009 6:38 PM

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