We have a 2kW 8 panel solar array (Panasonic HIT panels), mounted on a south-facing roof at approximately 35-40° angle from the horizontal, which was installed at the end of August 2013.
These are the results for September 2015 (in red) with last year's results (purple), year before (green) and distribution by average sunlight 1971-2010 (met office stats) in blue:
The panels have done 112.00kWh this month - up 8kWh on last year's results, and down 11.95kWh on the 123.9kWh value forecast by average sunlight.
With 341 hours of daylight in October (sun up to sun down for all 31 days), the average kWh generated per hour of daylight this month was 0.33kW. October last year was 0.30kW.
Last month, I started monitoring the average wind speeds across my back garden to see if a wind turbine would be a financially viable investment.
Here is a graph showing October's wind speeds:
Average wind speed for the month was 1.01m/s.
Average gust speed for the month was 1.89m/s.
Maximum wind speed recorded for the month was 6.5m/s.
Maximum gust speed was 9.2m/s.
