Oct. 27th, 2008

elhoff: (windmill)
So in the spirit of conservation, you have to know how much you use before you can reduce, right?

Real electricity usage:
So on the electricity front, from Oct 06 to Sept 07 I used 16,336 KWH of electricity.  From Oct 07 to Sept 08 I used 15,108 KWH.  That is a 1,200 KWH reduction in actual usage.  I attribute most of that to using a clothes line for most of our clothes drying this summer.  I need to figure out how to get that much reduction again this year.

Electricity purchased:
From Oct 06 to Sept 07 I bought 16,336 KWH of electricity from PG&E (100%).  From Oct 07 to Sept 08 I only bought 9,273 KWH of electricity from PG&E.  The balance of my usage this year was generated from my solar panels, 5,835 KWH.  That generation saved me $1,716 on my utility bills.  That level of savings will give me a 12.8 year return on investment.  This just gets better as electricity rates go up.

I suspect that my biggest energy user is my hot tub.  Since I'm not willing to get rid of it, I think I need to design a solar hot water system to heat it.  That would be a huge savings, but also a huge project.  We'll see...

September 2011

S M T W T F S
    123
456789 10
11121314151617
18192021222324
252627282930 

Most Popular Tags

Style Credit

Expand Cut Tags

No cut tags
Page generated Aug. 18th, 2025 04:50 am
Powered by Dreamwidth Studios