This page has moved – to a different spot on the same website
http://www.feedbackreigns.net/solutions/evaluate-solar-panels/
The page offers:
. a method for evaluating solar panels, and
. a free spreadsheet to do the calculations
I moved the page as I am having technical problems with this page.
Really interesting to see the solar panel economics in black & white. Thanks Andrew
Regards Liz
22% seems a very low assumption for self consumption.
May well be right for you but not representative of the levels most commonly experienced.
To give an example of perhaps the other extreme I consumed 82% of my solar generation over the last 8 months since installation.
4kW system (limited by roof shape)
3.181MWh generated
548.488kWh exported
12.833MWh consumed (big pool, deep love of air conditioning and very old ducted air conditioner)
People home 4 days a week.
Yes that 22% was low. I have changed this – and more. Thanks