Energy Star Yardstick

So I was searching the 'net (really for homemade storm windows...that's a different story) and I came across the Energy Star "Assess Your Home" website (Click here to check it out).  It's a fairly simple...you input where you live, how many folks in the household, the size of the house, and then your annual utility bills (electrical, gas, etc).  The key here is annual...you can put in monthly bills, but there has to be 12 months worth. 

So I put my information in.  The only thing is that I haven't run the Geothermal for a year yet.  Nor have I received last months bill.  So for my January bill, I used the TED5000 values (which have always been high).  And then for the next two months (my system was installed in February 2010), I just used a rough estimate compared to previous years.

To recap...I've used 7,182 kWh over 272 days (9 months) which is 26.4 kWh/day.  For last months (arriving any day now) bill, I put in the TED value of 1281 kWh.  Then for the next two months I assumed 1,000 kWh and 750 kWh.  With those assumptions, that put me at 11,166 kWh/year or 30.6 kWh/day. 

Putting in all this information gave me the following:

Yeah...I'm a little excited about getting a 9 out of 10. That's pretty cool....and this is a "normal" house (no superinsulation...no solar panels (yet)....etc)  I'm totally going to be interested to see if/how my score changes once I have a full years worth of data in there.  What's kind of neat is the "Set your Goal" info at the bottom.  I put in an assumed 10% reducation goal (equal to ~1,117 kWh/yr or 3.06 kWh/day) and it said my Score would increase to a 9.4.  Well...my next project will most likely be my hot water heater.  Currently hot water is using about 3.6 kWh/day (~0.75 hours @ 4.8 kW).  So reducing this in half would give me about 1.8 kWh/day of savings.   I'm still trying to figure out how to get one of those heat pump models in there which accomplish two goals:  (a) I'd have a preheat tank for the geothermal desuperheater to maximize its efficiency and (b) I'd have a high efficiency unit which would be 2.6x more efficienct. 

After that...well...I don't know what else to do.  I was planning on re-doing my house siding which includes housewrap.  That's *supposed* to reduce energy consumption by 10-15%.  Then there's solar panels...but those are pretty expensive.  Who knows what else after that...any ideas?