[Bldg-sim] gas: Btus to cost via pricing scheme

[Dillon, Mike]

MDCQ = Maximum Daily Contract Quantity. It should probably be included
as a peak demand charge for natural gas.
 
Mike
 
Mike Dillon E.I.T., LEED A.P., MBA 
DSM Engineer 
Avista Utilities 
1411 E. Mission Avenue - MSC 15 
Spokane, Washington 99202 
Phone: 509.495.4260 
Mobile: 509.270.6453 
Fax: 509.777.6136 
www.avistautilities.com 


________________________________

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Andrew
McNamara
Sent: Tuesday, January 08, 2008 7:05 AM
To: Cramer Silkworth
Cc: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] gas: Btus to cost via pricing scheme


Hello Cramer,

An colleage of mine and I did some recently did some research on Natural
Gas prices for New York State, and we banged our heads against the wall
for a fair bit before figuring out how these rate structures fit
together.  The two of us just took a look at what you listed below and
here's our best guess. 

Customer charge is the monthly base
Distribution charge is likely the "delivery" component charged on a "per
therm" or "per ccf" basis
Cost of Gas Adjustment is likely the "supply" component charged on a
"per therm" or "mdcq" basis (not sure what mdcq is, but it seems to me
that only one of these two lines applies to the actual bill, depending
which unit you are billed in (therms vs. mdcq) 
Local Distribution Adjustment Charge is likely another fee they tack on
per therm, ccf, or mdcq.

So.... if you were billed in therms, I believe your total bill would be
550.41+(1.0322+0.8651+0.0491) * Therms usage. 

Hope that helps!

Best,
Andy
-- 
Andrew McNamara, LEED AP
Bright Power, Inc.

tel: 212.803.5868
fax: 866.379.8026
cell: 917.974.4499


On 1/7/08, Cramer Silkworth <silkworth at transsolar.com> wrote: 

	Hello everyone,
	 
	I'm trying to take my gas use output numbers (Btus) and
calculate the cost of the gas using the pricing scheme from the local
utility (Keyspan in Boston) for a LEED certification. However, I can't
figure out what the scheme means. Can someone tell me what these numbers
mean, in terms of how to write an equation to take my hourly outputs of
gas use (from Trnsys, but I'm doing this in Excel) and calculate final
(monthly) cost?
	 
	"Customer Charge (fixed): $550.41": I'm assuming this is the
monthly base fee.
	"Distribution Charge: $1.0322": Dollars per ...?
	"Cost of Gas Adjustment CGA (mdcq): $0.8432": Again, no idea
	"Cost of Gas Adjustment CGA (Therm): 0.8651": ...
	"Local Distrib. Adjustment Charge LDAC: $0.0491": ...
	 
	(These numbers are under the heading "High Load Factor General
Service Rate - Extra Large," this is for a rather large commercial
building complex.
	 
	I've gone to the utility's website and found this data, but
nothing to explain it, nor anywhere else on the web. I called them, and
just get passed around their service department because no one seems to
be able to understand how I can have gas numbers without having a
building!
	 
	Any help would be greatly appreciated. Thanks,
	Cramer
	 

	J. Cramer Silkworth 
	silkworth at transsolar.com 
	+49 0711-67976-182 
	Transsolar Energietechnik GmbH 
	http://www.transsolar.com <http://www.transsolar.com/>  
	Stuttgart - Munich - New York 

	Climate Engineering: Technologies for energy-efficiency and user
comfort in buildings.
	Transsolar Energietechnik GmbH, Curiestrasse 2, 70563 Stuttgart,
Germany

	Amtsgericht Stuttgart -  HRB 23347 / USt-IdNr.: 99073/00911

	Partners: Dipl.Ing. Matthias Schuler, Dipl.Ing. Thomas Auer,
Dipl.Phys. Stefan Holst 

	 

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