dlakelan (dlakelan) wrote in dataheads,
dlakelan
dlakelan
dataheads

First data set

Ok, here's a set of data from my power bill that I fooled around with yesterday. It has some missing data.

Our heat is natural gas, 90KBTU/hr input, we have no air conditioning. We use a fair number of compact fluorescent lights, and have about 1600 sq ft and 3 adults in the house. zip code is 94549 to key to weather.

I consider our household fairly low energy consumers, esp with no air conditioner, but I am amazed at how poorly we perform in the winter. An electric space heater could run all day long for those prices. We have several computers that run 24hrs/day.

Perhaps some others would care to add their own power consumption data and we could analyze the seasonal effects and variance.

Year	Month	ElecKwh	GasTherm	Dollars
2000	12	548	114	219.97
2001	1	523	118	276.07
2001	2	476	82	186.69
2001	3	377	45	101.81
2001	4	310	32	72.60
2001	5	345	28	69.80
2001	6	343	21	57.38
2001	7	342	23	52.18
2001	8	404	25	64.96
2001	9	378	54	78.34
2001	10	444	14	58.33
2001	11	492	76	112.91
2001	12	424	76	105.45
2002	1	610	133	182.44
2002	2	519	77	112.88
2002	3	518	61	98.91
2002	4	438	43	78.51
2002	5	306	28	54.06
2002	6	280	20	42.91
2002	7	323	20	40.85
2002	8	332	16	47.20
2002	9	322	17	40.39
2002	10	373	43	67.11
2003	8	371	16	
2003	7	396	17	
2003	6	423	26	
2003	5	480	49	
2003	1	633	92	
2003	2	549	84	
2003	3	521	63	
2004	8	393	18	60.58
2004	7	397	17	59.71
2004	6	449	24	71.57
2004	5	425	28	68.61
2004	1	655	107	200.53
2004	2	549	92	163.67
2004	3	536	67	116.91
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Honestly, I'd be most curious on the age of the building/apartment/house, specifically the age of the windows and main heating unit, vs. the variance in cost.

On the minus side, I don't keep my bills. :(
built in the 50s I think. The furnace is early 90's.

The house has two roofs so it's well insulated above, but the walls are generally crap.

The windows are crap, old aluminum frame single pane, and the thermostat is in a drafty location.

My conclusion was that a space heater placed in the most commonly occupied room would save us running the main heater almost at all, and reduce the fuel consumption by ~ 10x even with the generation and distribution losses :-)

I'd say put plastic over the windows in the winter to avoid drafts. Will probably save you at least $100 throughout the winter.
I don't have my data handy but I'll look for it. I know my house (2200 sq feet) hits $180+ in the hot summer months (area code 08846) 3 adults, 1 teenager with 3 overclocked athlons 24/7, 1 desktop, 3 laptops. In the winter we manage to stay in the $50 range.

It's a 2 story house built in 1996 double paned windows etc. All appliances installed new in 1996.

I'm almost thinking you could save $ by running overclocked servers in the main space instead of space heater. Athlon XP 1700 at 2.1Ghz is a good start.